274 results on '"An, Minghui"'
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2. CircPDE5A-encoded novel regulator of the PI3K/AKT pathway inhibits esophageal squamous cell carcinoma progression by promoting USP14-mediated de-ubiquitination of PIK3IP1
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Kai Lei, Ruihao Liang, Jialu Liang, Nan Lu, Jing Huang, Ke Xu, Binghua Tan, Kexi Wang, Yicheng Liang, Wenjian Wang, Huayue Lin, and Minghui Wang
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Esophageal squamous cell carcinoma ,PI3K/AKT pathway ,Circular RNA ,CircPDE5A ,Nanoparticles ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Esophageal squamous cell carcinoma (ESCC) is a common gastrointestinal tumor and has become an important global health problem. The PI3K/AKT signaling pathway plays a key role in the development of ESCC. CircRNAs have been reported to be involved in the regulation of the PI3K/AKT pathway, but the underlying mechanisms are unclear. Therefore, this study aimed to identify protein-coding circRNAs and investigate their functions in ESCC. Methods Differential expression of circRNAs between ESCC tissues and adjacent normal tissues was identified using circRNA microarray analysis. Thereafter, LC–MS/MS was used to identify circPDE5A-encoded novel protein PDE5A-500aa. Molecular biological methods were used to explore the biological functions and regulatory mechanisms of circPDE5A and PDE5A-500aa in ESCC. Lastly, circRNA-loaded nanoplatforms were constructed to investigate the therapeutic translation value of circPDE5A. Results We found that circPDE5A expression was down-regulated in ESCC cells and tissues and that it was negatively associated with advanced clinicopathological stages and poorer prognosis in ESCC. Functionally, circPDE5A inhibited ESCC proliferation and metastasis in vitro and in vivo by encoding PDE5A-500aa, a key regulator of the PI3K/AKT signaling pathway in ESCC. Mechanistically, PDE5A-500aa interacted with PIK3IP1 and promoted USP14-mediated de-ubiquitination of the k48-linked polyubiquitin chain at its K198 residue, thereby attenuating the PI3K/AKT pathway in ESCC. In addition, Meo-PEG-S–S-PLGA-based reduction-responsive nanoplatforms loaded with circPDE5A and PDE5A-500aa plasmids were found to successfully inhibit the growth and metastasis of ESCC in vitro and in vivo. Conclusion The novel protein PDE5A-500aa encoded by circPDE5A can act as an inhibitor of the PI3K/AKT signaling pathway to inhibit the progression of ESCC by promoting USP14-mediated de-ubiquitination of PIK3IP1 and may serve as a potential target for the development of therapeutic agents. Graphical Abstract The novel protein PDE5A-500aa encoded by circPDE5A can act as an inhibitor of the PI3K/AKT signaling pathway to inhibit the progression of esophageal squamous cell carcinoma.
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- 2024
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3. Functional nonlinear optical nanoparticles synthesized by laser ablation
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Lianwei Chen and Minghui Hong
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nonlinear optics ,nanoparticles ,optical limiting ,saturable absorption ,laser ablation ,Optics. Light ,QC350-467 ,Applied optics. Photonics ,TA1501-1820 - Abstract
Nonlinear optics is an important research direction with various applications in laser manufacturing, fabrication of nanostructure, sensor design, optoelectronics, biophotonics, quantum optics, etc. Nonlinear optical materials are the fundamental building blocks, which are critical for broad fields ranging from scientific research, industrial production, to military. Nanoparticles demonstrate great potential due to their flexibility to be engineered and their enhanced nonlinear optical properties superior to their bulk counterparts. Synthesis of nanoparticles by laser ablation proves to be a green, efficient, and universal physical approach, versatile for fast one-step synthesis and potential mass production. In this review, the development and latest progress of nonlinear optical nanoparticles synthesized by laser ablation are summarized, which demonstrates its capability for enhanced performance and multiple functions. The theory of optical nonlinear absorption, experimental process of laser ablation, applications, and outlooks are covered. Potential for nanoparticle systems is yet to be fully discovered, which offers opportunities to make various types of next-generation functional devices.
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- 2022
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4. Tuning the Electronic Structures of Anchor Sites to Achieve Zero‐Valence Single‐Atom Catalysts for Advanced Hydrogenation.
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Li, Yin, Xu, Yuxing, Chen, Si, Shi, Xianxian, Gu, Qingqing, Wang, Leilei, Gu, Minghui, Teng, Botao, Yang, Bing, and Lu, Junling
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ELECTRONIC structure ,HYDROGENATION ,CATALYSTS ,ELECTRONEGATIVITY ,VALENCE (Chemistry) ,NANOPARTICLES ,ATOMS - Abstract
Single‐atom catalysts (SACs) have recently become highly attractive for selective hydrogenation reactions owing to their remarkably high selectivity. However, compared to their nanoparticle counterparts, atomically dispersed metal atoms in SACs often show inferior activity and are prone to aggregate under reaction conditions. Here, by theoretical calculations, we show that tuning the local electronic structures of metal anchor sites on g‐C3N4 by doping B atoms (BCN) with relatively lower electronegativity allows achieving zero‐valence Pd SACs with reinforced metal‐support orbital hybridizations for high stability and upshifted Pd 4d orbitals for high activity in H2 activation. The precise synthesis of Pd SACs on BCN supports with varied B contents substantiated the theoretical prediction. A zero‐valence Pd1/BCN SAC was achieved on a BCN support with a relatively low B content. It exhibited much higher stability in a H2 reducing environment, and more strikingly, a hydrogenation activity, approximately 10 and 34 times greater than those high‐valence Pd1/g‐C3N4 and Pd1/BCN with a high B content, respectively. [ABSTRACT FROM AUTHOR]
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- 2024
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5. A Self‐foaming Strategy to Construct Small Mo2C Nanoparticles Decorated 3D Carbon Foams as Superior Electromagnetic Wave Absorbing Materials with Strong Corrosion Resistance.
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Liu, Yonglei, Zhang, Minghui, Liu, Dawei, Gai, Lixue, Wang, Yan, Wang, Pan, Han, Xijiang, and Du, Yunchen
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FOAM , *ELECTROMAGNETIC waves , *CORROSION resistance , *CARBON foams , *NANOPARTICLES , *ELECTROMAGNETIC wave absorption - Abstract
3D macroporous carbon‐based foams are always considered as promising candidates for high‐performance electromagnetic (EM) wave absorbing materials due to the collaborative EM contribution and salutary structure effect. However, the uneven distribution of heterogeneous EM components and the cumbersome preparation process have become key issues to hinder their performance improvement and practical popularity. Herein, the fabrication of 3D carbon foam decorated with small and highly dispersed Mo2C nanoparticles is realized by an innovative self‐foaming strategy. The foaming mechanism can be attributed to the decomposition of nitrate during the softening process of organic polymers. The good dispersion of Mo2C nanoparticles boosts interfacial polarization significantly. After regulating the content of Mo2C nanoparticles, the optimal Mo2C/CF‐
x exhibits good EM absorption performance, whose minimum reflection loss intensity value can reach up to ‐72.2 dB, and effective absorption bandwidth covers 6.7 GHz with a thickness of 2.30 mm. Very importantly, the resultant Mo2C/CF‐x exhibits hydrophobicity and strong acidic anticorrosion, and a long‐time treatment in HCl solution (6.0 mol L−1) produces negligible impacts on their EM functions. It is believed that this extraordinary feature may render Mo2C/C foams as qualified and durable EM wave absorbing materials (EWAMs) under rigorous conditions. [ABSTRACT FROM AUTHOR]- Published
- 2024
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6. Nanoparticles in ocular applications and their potential toxicity
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Cao Yang, Junling Yang, Ao Lu, Jing Gong, Yuanxing Yang, Xi Lin, Minghui Li, and Haiwei Xu
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nanoparticles ,ocular drug delivery ,toxicity ,assessment ,challenges ,Biology (General) ,QH301-705.5 - Abstract
Nanotechnology has been developed rapidly in recent decades and widely applied in ocular disease therapy. Nano-drug delivery systems overcome the bottlenecks of current ophthalmic drug delivery and are characterized with strong biocompatibility, stability, efficiency, sustainability, controllability, and few side effects. Nanoparticles have been identified as a promising and generally safe ophthalmic drug-delivery system based on the toxicity assessment in animals. Previous studies have found that common nanoparticles can be toxic to the cornea, conjunctiva, and retina under certain conditions. Because of the species differences between humans and animals, advanced in vitro cell culture techniques, such as human organoids, can mimic the human organism to a certain extent, bringing nanoparticle toxicity assessment to a new stage. This review summarizes the advanced application of nanoparticles in ocular drug delivery and the potential toxicity, as well as some of the current challenges and future opportunities in nanotoxicological evaluation.
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- 2022
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7. Purified CaO supported Pt nanoparticles for the selective hydrogenation of styrene oxide with enhanced selectivity of 1-phenylethanol.
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Chenqi Zhao, Rixin You, Meihua Jin, Xing Jin, Pingfan Wu, Meng He, and Minghui Liang
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STYRENE oxide ,HYDROGENATION ,NANOPARTICLES ,CATALYSTS ,OXIDES - Abstract
The CaO-supported Pt nanoparticle catalysts, herein referred to as the Pt/CaO-P catalysts, were synthesized for the first time to catalyze the selective hydrogenation of styrene oxide. All previously reported Pt- and Pd-based catalysts were prepared and evaluated under identical conditions, with 2-phenylethanol (2-PEA) being identified as the primary product in the selective hydrogenation of styrene oxide. The comparative analysis of the catalytic performance of Pt/CaO-P, Pt/CaO (unpurified), Pt/Ca(OH)
2 , and Pt/CaCO3 revealed that the purity of CaO is crucial for enhancing the selectivity towards 1-phenylethanol (1-PEA). Notably, the highest selectivity of 1-PEA over Pt/CaO-P reached up to 39%. Our SO-TPD, CO2 -TPD and ex situ FT-IR results further indicated that strong basic sites can modify the adsorption site of SO over Pt nanoparticles, leading to the higher selectivity of 1-PEA. A proposed reaction mechanism for the ring opening of styrene oxide suggests that the breakage of conjugation between the benzene ring and the adjacent carbon cation by strong basic sites plays an important role. [ABSTRACT FROM AUTHOR]- Published
- 2024
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8. Nano‐Biomedicine based on Liquid Metal Particles and Allied Materials
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Xuyang Sun, Bo Yuan, Hongzhang Wang, Linlin Fan, Minghui Duan, Xuelin Wang, Rui Guo, and Jing Liu
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biomaterials ,liquid metals ,nano-biomedicine ,nanoparticles ,synthesis methods ,Biotechnology ,TP248.13-248.65 ,Medical technology ,R855-855.5 - Abstract
Liquid metals (LMs) have emerged as a new class of functional materials with attractive characteristics of low melting points and metal properties. Remarkable features, such as biocompatibility, injectability, plasticity, conductivity, and shape transformability, have rendered them as excellent candidates to tackle challenging biomedical issues, such as tumor clinics, tissue engineering, and even nerve connection. Scaling down the droplet size offers more opportunities in surface engineering and functionalization, thus providing broad biomedical scenarios expanding from drug delivery, enhanced bioheat transfer, tumor therapeutics, and bioelectronics to nanorobots. Despite in its infancy stage, a summary about the advancement of LM biomedical nanomaterials is urgently needed. This review aims to highlight the advantages of gallium‐based LM nanoparticles enabled nano‐biomedicine, to summarize the recent synthesis methods with diverse LM compositions, structures and surface modifications, and to introduce their typical state‐of‐the‐art biomedical applications. Challenges and opportunities are also discussed in the end.
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- 2021
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9. Double-layered N-S1 protein nanoparticle immunization elicits robust cellular immune and broad antibody responses against SARS-CoV-2.
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Li, Ruiqi, Chang, Zejie, Liu, Hongliang, Wang, Yanan, Li, Minghui, Chen, Yilan, Fan, Lu, Wang, Siqiao, Sun, Xueke, Liu, Siyuan, Cheng, Anchun, Ding, Peiyang, and Zhang, Gaiping
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NANOPARTICLES ,ANTIBODY formation ,SARS-CoV-2 ,SOLVABLE groups ,HUMORAL immunity ,T cells ,AVIAN influenza - Abstract
Background: The COVID-19 pandemic is a persistent global threat to public health. As for the emerging variants of SARS-CoV-2, it is necessary to develop vaccines that can induce broader immune responses, particularly vaccines with weak cellular immunity. Methods: In this study, we generated a double-layered N-S1 protein nanoparticle (N-S1 PNp) that was formed by desolvating N protein into a protein nanoparticle as the core and crosslinking S1 protein onto the core surface against SARS-CoV-2. Results: Vaccination with N-S1 PNp elicited robust humoral and vigorous cellular immune responses specific to SARS-CoV-2 in mice. Compared to soluble protein groups, the N-S1 PNp induced a higher level of humoral response, as evidenced by the ability of S1-specific antibodies to block hACE2 receptor binding and neutralize pseudovirus. Critically, N-S1 PNp induced Th1-biased, long-lasting, and cross-neutralizing antibodies, which neutralized the variants of SARS-CoV-2 with minimal loss of activity. N-S1 PNp induced strong responses of CD4
+ and CD8+ T cells, mDCs, Tfh cells, and GCs B cells in spleens. Conclusions: These results demonstrate that N-S1 PNp vaccination is a practical approach for promoting protection, which has the potential to counteract the waning immune responses against SARS-CoV-2 variants and confer broad efficacy against future new variants. This study provides a new idea for the design of next-generation SARS-CoV-2 vaccines based on the B and T cells response coordination. [ABSTRACT FROM AUTHOR]- Published
- 2024
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10. Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation
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Yuandong Peng, Chao Xia, Minghui Cui, Zhixin Yao, and Xuwu Yi
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NiCuZn ferrite ,Nanoparticles ,Co-precipitation method ,Ultrasonic irradiation ,Magnetic properties ,Chemistry ,QD1-999 ,Acoustics. Sound ,QC221-246 - Abstract
Nano-spinel ferrites synthesized via chemical co-precipitation method are small in size and have serious agglomeration phenomenon, which makes separation difficult in the subsequent process. Ni0.4Cu0.2Zn0.4Fe2O4 ferrites nanoparticles were synthesized via co-precipitation assisted with ultrasonic irradiation produced by ultrasonic cleaner with 20 kHz frequency using chlorinated salts and KOH as initial materials. The effects of ultrasonic power (0, 40 W, 60 W, 80 W) and reaction temperature on the microstructure and magnetic properties of ferrite nanoparticles were investigated. The structure analyses via XRD revealed the successful formation of pure (NiCuZn)Fe2O4 ferrites nanospinel without any impurity. The crystallites sizes were less than 40 nm and the lattice constant was near 8.39 Å. The TEM showed ferrite particle polygonal. M−H analyses performed the saturation magnetization and coercivity of ferrite nanoparticles obtained at the reaction temperature of 25℃ were higher than at 50℃ with same power. The samples exhibited the highest values of Ms 55.67 emu/g at 25℃ and 47.77 emu/g at 50℃ for 60 W and the lowest values of Hc 71.23 Oe at 25℃ for 40 W and 52.85 Oe at 50℃ for 60 W. The squareness ratio (SQR) were found to be lower than 0.5, which revealed the single magnetic domain nature (NiCuZn)Fe2O4 nanoparticles. All the outcomes show the ultrasonic irradiation has positive effects on improving the microstructure and increasing magnetic properties.
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- 2021
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11. Side Chain Engineering of Amphiphilic Conjugated Polymer Nanoparticles for Biofilm Ablation.
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Jinghan, Ren, Zhanshuo, Cao, Minghui, Wang, Dong, Gao, and Chengfen, Xing
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CONJUGATED polymers ,PHOTOTHERMAL effect ,BACTERIAL cell surfaces ,BIOFILMS ,PHOTOTHERMAL conversion ,NANOPARTICLES - Abstract
Biofilm recalcitrance, which enables bacteria to survive deep within the body under antimicrobial treatment, leading to persistent infections by reducing the penetration of antimicrobials, remains a major challenge in the antibacterial field. Conjugated polymer‐based nanoparticles with near‐infrared (NIR) photo responsiveness have emerged as a promising class of photothermal agents for biofilm ablation. However, the development of CPNs has been limited due to dissociation of the nanoparticles synthesized through nanoprecipitation. In this study, surface‐functionalized amphiphilic conjugated polymer‐based nanoparticles with photothermal conversion capacity for pH‐responsive targeting of bacteria are developed. The pH‐sensitive properties of the nanoparticles promote their adhesion to negatively charged bacterial surfaces, resulting in accumulation in biofilms. This accumulation enhances the ablation efficiency of biofilms under the synergistic photothermal effect. The method of constructing functional amphiphilic conjugated polymer‐based nanoparticles is simple to operate and can be used universally, providing a potential design option for biocompatible light‐responsive nanoparticles for in vivo applications. [ABSTRACT FROM AUTHOR]
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- 2023
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12. Rice bran phytosterol nanoparticles: A promising approach to enhance yogurt quality and nutrition.
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Feng, Simin, Guo, Baihui, Wang, Liling, Sui, Minghui, and Shao, Ping
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RICE bran ,PHYTOSTEROLS ,NANOPARTICLES ,FOOD quality ,ESTERIFICATION - Abstract
This study aimed to improve the comprehensive utilization value of rice bran by investigating catalysts for the methyl esterification reaction of rice bran oil deodorized distillates and preparing phytosterol nanoparticles for addition to yogurt. Fe2(SO4)3 was found to be an effective catalyst, achieving a methyl esterification rate of 98.07 ± 0.23% under optimal conditions. Then, phytosterol nanoparticles were prepared and added to yogurt, resulting in stable addition with the pH decreased from 4.23 ± 0.01 to 4.02 ± 0.01 and the titratable acidity increased from 106.48 ± 0.85 °T to 117.07 ± 0.82 °T during storage. The addition of phytosterol nanoparticles increased the apparent viscosity from 0.68 ± 0.01 Pa s to 0.72 ± 0.02 Pa s and the G* from 80.01 ± 5.50 Pa to 91.80 ± 1.99 Pa, resulting in thicker and more elastic texture. Phytosterol nanoparticle improves the dispersion and stability of phytosterols in yogurt, thus making it stable to be added to yogurt. Fe2(SO4)3 is a suitable catalyst for the methyl esterification reaction of rice bran oil deodorized distillates, and the addition of rice bran phytosterol nanoparticles to yogurt can enhance its texture and nutritional value, offering a promising strategy for producing high value‐added products from rice bran. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Will Better Sintering Quality of Ag Nanoparticles Lead to More Reliable Ag Bonding Interfaces?
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Sun, Baorui, Zhang, Minghui, Li, Junjie, Li, Zhe, Wen, Mingli, and Liu, Zhi-Quan
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BOND formation mechanism ,POWER semiconductors ,SINTERING ,NANOPARTICLES ,SHEAR strength - Abstract
Ag sintering technology for die-attach application in power semiconductors has garnered significant attention in recent years due to its excellent high-temperature service reliability. In this study, a highly reliable bonding joint was achieved using a specific Ag paste, resulting in shear strength of 37.63 MPa after pressureless bonding at 250°C for 10 min. However, a significant reduction in bonding strength was observed when using another set of Ag paste with better sintering performance. To investigate this anomalous phenomenon, we have performed a series of characterizations and proposed a corresponding bonding formation mechanism. The conclusions and inferences drawn from this study offer valuable theoretical support for the further application of Ag sintering, thereby promoting the advancement of this technology. [ABSTRACT FROM AUTHOR]
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- 2023
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14. An Enhanced Performance of Glucose Biosensor Based on TiO2 Nanorod Arrays Decorated with Ag Nanoparticles.
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Minghui Chen, Jin Liu, Pengzhao Chang, Shaohui Zheng, and Yong Wang
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NANORODS ,GLUCOSE ,BIOSENSORS ,NANOPARTICLES ,CARBON paper ,GLUCOSE analysis ,HYDROTHERMAL synthesis ,GLUCOSE oxidase - Abstract
In this study, TiO
2 nanorod arrays (NAs) on carbon paper (CP) substrates were prepared via hydrothermal synthesis. Then, Ag nanoparticles (NPs) were deposited on the surface of the TiO2 NAs to enhance the electrocatalytic activity and analysis ability of the electrode for H2 O2 . Thereafter, GOx was modified on the surface of the Ag NPs-TiO2 NAs/CP via the cross-linking method for the detection of glucose. The GOx/Ag NPs-TiO2 NAs/CP integrates the functions of the specific recognition of glucose, signal transduction, and signal amplification. In an in vitro test, this GOx/Ag NPs-TiO2 NAs/CP biosensor shows a sensitivity of 0.182 mA mM-1 cm-2 , which is 6.6-fold that for the GOx/CP sensor (0.0276 mA mM-1 cm-2 ). The sensor can transduce the GOx-catalyzed reaction into significant current signals within 5 s. The relationship between the glucose concentration and the sensitivity to glucose is linear with the correlation coefficient R² of 0.9996 in the range of 0-0.9 mM, and the detection limit was estimated to be 1.6 µM. [ABSTRACT FROM AUTHOR]- Published
- 2023
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15. A Multifunctional Vanadium-Iron-Oxide Nanoparticle Eradicates Hepatocellular Carcinoma via Targeting Tumor and Endothelial Cells
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Xiaoming Yang, Jianmin Xiao, Lingyu Jiang, Lang Ran, Yangyang Fan, Minghui Zhang, Yuxue Xu, Cuifang Yao, Baijiao An, Yang Yang, Chunhua Yang, Geng Tian, Guilong Zhang, and Yin Zhang
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Mice ,Carcinoma, Hepatocellular ,Cell Line, Tumor ,Iron ,Liver Neoplasms ,Human Umbilical Vein Endothelial Cells ,Animals ,Humans ,Nanoparticles ,Oxides ,Vanadium ,General Materials Science - Abstract
Nanoparticles are widely used in biological research and cancer therapy. In hepatocellular carcinoma, several nanoplatforms have been synthesized and studied to improve the drug efficacy; however, these nanoplatforms are still insufficient to eradicate tumors. Herein, we have synthesized a novel vanadium (V)-iron-oxide (ION) nanoparticle (VIO) that combines chemodynamic, photothermal, and diagnostic capacities to enhance the tumor suppression effect in one agent with multiple functions. In the in vitro models, hepatocellular carcinoma cells are significantly inhibited by VIO-based nanoagents. The mechanistic study validates that VIO increases reactive oxygen species (ROS), which led to apoptosis and ferroptosis resulting in cell death. To our surprise, VIO targets not only tumor cells but also endothelial cells. In addition to inducing cell death, VIO also blocks tube formation and cell migration in human umbilical vein endothelial cell (HUVEC) and C166 models, indicating an antiangiogenic potential. In mouse tumor models, VIO retards tumor growth and induces apoptosis in tumor tissues. Furthermore, a significant blood vessel regression is seen in VIO-treated groups accompanied with larger necrotic areas. More interestingly, the activation of photothermal therapy completely eradicates tumor tissues. Taken together, this VIO nanoplatform could be a powerful anticancer candidate for nanodrug development.
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- 2022
16. An esterase-activatable curcumin prodrug for tumor-targeting therapy
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Li Liu, Lele Zhang, Menglin Tao, Minghui Wang, Ling Dong, and Zijuan Hai
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Drug Carriers ,Curcumin ,Esterases ,Metals and Alloys ,Antineoplastic Agents ,General Chemistry ,Catalysis ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Neoplasms ,Cell Line, Tumor ,Materials Chemistry ,Ceramics and Composites ,Humans ,Nanoparticles ,Prodrugs ,Oligopeptides - Abstract
A tumor-targeting therapy strategy is urgently needed to increase the accumulation of drugs in tumors and reduce the side effects in normal tissues. Herein, we developed an esterase-activatable curcumin prodrug Cur-RGD for tumor-targeting therapy. Armed with the tumor-targeting RGD peptide and
- Published
- 2022
17. Improved optical limiting performance of laser-ablation-generated metal nanoparticles due to silica-microsphere-induced local field enhancement
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Zheren Du, Lianwei Chen, Tsung-Sheng Kao, Mengxue Wu, and Minghui Hong
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laser ablation ,local field enhancement ,microspheres ,nanoparticles ,optical limiting ,Technology ,Chemical technology ,TP1-1185 ,Science ,Physics ,QC1-999 - Abstract
For practical application, optical limiting materials must exhibit a fast response and a low threshold in order to be used for the protection of the human eye and electro-optical sensors against intense light. Many nanomaterials have been found to exhibit optical limiting properties. Laser ablation offers the possibility of fabricating nanoparticles from a wide range of target materials. For practical use of these materials, their optical limiting performance, including optical limiting threshold and the ability to efficiently attenuate high intensity light, needs to be improved. In this paper, we fabricate nanoparticles of different metals by laser ablation in liquid. We study the optical nonlinear properties of the laser-generated nanoparticle dispersion. Silica microspheres are used to enhance the optical limiting performance of the nanoparticle dispersion. The change in the optical nonlinear properties of the laser-generated nanoparticle dispersion caused by silica microspheres is studied. It is found that the incident laser beam is locally focused by the microspheres, leading to an increased optical nonlinearity of the nanoparticle dispersion.
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- 2015
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18. Local field enhanced nonlinear optical effect in hybrid Si-SiO2 nano-composites dispersion
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Australian Conference on Optical Fibre Technology (39th : 2014 : Melbourne), Chen, Lianwei, Du, Zheren, Wu, Mengxue, Kao, Tsung-Sheng, and Hong, Minghui
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- 2014
19. Transformation of Bacillus thuringiensis plasmid DNA by a new polyethylenimine polymeric nanoparticles method
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Min Gu Park, Chong-Su Cho, Jae Young Choi, Jong Hoon Kim, Dong Hwan Park, Minghui Wang, Sang Hee Kim, Ho Yeon Lee, and Yeon Ho Je
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Microbiology (medical) ,Polymers ,Nucleic Acids ,Bacillus thuringiensis ,Polyethyleneimine ,Nanoparticles ,DNA ,Molecular Biology ,Microbiology ,Plasmids - Abstract
Although electroporation technique has been mostly used to transform Bacillus thuringiensis (Bt), this method is not readily applicable to strains other than the one for which it was optimized. Polyethylenimine (PEI) is a golden standard non-viral vector that interacts with plasmids to form compact polymeric nanoparticles (PNPs) via electrostatic interactions. This PNPs system is very attractive because they are easily prepared, able to carry large nucleic acid constructs, and show low toxicity. In this study, PEI/pBTdsSBV-VP1 PNPs were successfully prepared at various N/P ratios which is positively-chargeable polymer amine (N = nitrogen) groups to negatively-charged nucleic acid phosphate (P) groups, and the internalization of the complexes into Bt 4Q7 was confirmed by confocal laser scanning microscopy. The PEI-mediated transformation showed similar efficiency comparable to that of electroporation method, suggesting that the method of PNPs will be an effective alternative for transformation of Bt strains.
- Published
- 2022
20. A mitochondria-targeted molecular phototheranostic platform for NIR-II imaging-guided synergistic photothermal/photodynamic/immune therapy
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Sha Yang, Gui-long Wu, Na Li, Minghui Wang, Peixian Wu, Yuxuan He, Wei Zhou, Hao Xiao, Xiaofeng Tan, Li Tang, and Qinglai Yang
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Photosensitizing Agents ,Photothermal Therapy ,Optical Imaging ,Biomedical Engineering ,Pharmaceutical Science ,Medicine (miscellaneous) ,Bioengineering ,Phototherapy ,Applied Microbiology and Biotechnology ,Mitochondria ,Photochemotherapy ,Neoplasms ,Cell Line, Tumor ,Molecular Medicine ,Humans ,Nanoparticles ,Reactive Oxygen Species - Abstract
Phototherapy is a conducive and non-invasive strategy for cancer therapy under light irradiation. Inspiringly, fluorescence imaging in the second near-infrared window (NIR-II, 1000–1700 nm) holds a great promise for imaging-guided phototherapy with deep penetration and high spatiotemporal resolution. However, most phototherapeutics still face great challenges, including complicated synthesis of agents, potential biotoxicity and unsatisfied therapeutic outcomes. Herein, a near-infrared laser triggered molecular photosensitizer FEPT, modified with triphenylphosphine PEGylation (PEG2000-TPP), is developed for NIR-II imaging-guided mitochondria-targeting synergistic photothermal therapy (PTT)/photodynamic therapy (PDT)/immune therapy (IMT). The mitochondria-targeting photosensitizer FEPT can produce reactive oxygen species (ROS) and hyperpyrexia upon 808 nm laser irradiation, resulting in mitochondrial dysfunction and photo-induced apoptosis via caspase-3 pathway. Phototherapy-induced hyperthermia or ROS triggers the release of immunogenic intracellular substrates from dying tumor cells, thereby promoting the activation of antitumor immunity. Herein, this work provides a practicable strategy to develop a molecular phototheranostic platform for imaging-guided cancer therapy via mitochondria-targeting. Graphical Abstract
- Published
- 2022
21. Removal of triclosan from water by sepiolite supported bimetallic Fe/Ni nanoparticles
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Kangming Wu, Kewen Zheng, Yichao Shi, Yunmei Cai, Lingling Yuan, Minghui Ouyang, and Guofa Ren
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Materials science ,Scanning electron microscope ,Iron ,0208 environmental biotechnology ,Nanoparticle ,02 engineering and technology ,010501 environmental sciences ,01 natural sciences ,Magnesium Silicates ,Reductive dechlorination ,Environmental Chemistry ,Waste Management and Disposal ,Bimetallic strip ,0105 earth and related environmental sciences ,Water Science and Technology ,Zerovalent iron ,Aqueous solution ,Sepiolite ,Water ,General Medicine ,Triclosan ,020801 environmental engineering ,Kinetics ,Transmission electron microscopy ,Nanoparticles ,Water Pollutants, Chemical ,Nuclear chemistry - Abstract
A simple and low-cost route to fabricate sepiolite-supported bimetallic Fe/Ni (Sep-Fe/Ni) nanoparticles was obtained by synchronous liquid phase reduction method. The as prepared composite was used to remove triclosan (TCS) from aqueous solutions. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller (BET) analysis were used for characterization of the materials. As the supporting material, Sep dispersed Fe/Ni nanoparticles on its surface effectively and reduced the agglomeration phenomenon, providing more reactive sites. Sep-Fe/Ni had a large surface area of 90.5 m2/g, which was considerably higher than that of Fe/Ni (9.2 m2/g). Sep-Fe/Ni exhibited an enhanced TCS removal efficiency, as compared to the Fe/Ni and Sep materials. Operation factors, including the solution pH, initial TCS concentration, and material dosage, were investigated and found to be influential for TCS removal. The kinetic analysis indicated that the depletion of TCS in aqueous solutions conformed to the pseudo-first-order kinetic model under optimized conditions. The transformation pathway of TCS was studied in detail, revealing that the dechlorination of TCS by Sep-Fe/Ni is a stepwise reaction, namely from TCS to di-chlorinated intermediates, with the newly formed intermediate products also degrading into mono-chlorinated products by further reductive dechlorination. This study demonstrated that Sep-Fe/Ni is a promising reductant for TCS removal in water.
- Published
- 2021
22. Albumin-encapsulated HSP90-PROTAC BP3 nanoparticles not only retain protein degradation ability but also enhance the antitumour activity of BP3 in vivo.
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Jiang, Qingna, Hu, Yan, Liu, Quanyu, Tang, Yuanling, Wu, Xinhua, Liu, Jingwen, Tu, Guihui, Li, Ge, Lin, Xiaoqing, Qu, Minghui, Cai, Yajuan, Huang, Xiuwang, Xu, Jianhua, Deng, Yanping, Chen, Zhuo, and Wu, Lixian
- Subjects
PROTEOLYSIS ,SERUM albumin ,HEAT shock proteins ,NANOPARTICLES ,MOLECULAR weights - Abstract
Proteolysis-targeting chimaera (PROTAC) has received extensive attention in industry. However, there are still some limitations that hinder its further development. In a previous study, our group first demonstrated that the HSP90 degrader BP3 synthesised by the principle of PROTACs showed therapeutic potential for cancer. However, its application was hindered by its high molecular weight and water insolubility. Herein, we aimed to improve these properties of HSP90-PROTAC BP3 by encapsulating it into human serum albumin nanoparticles (BP3@HSA NPs). The results demonstrated that BP3@HSA NPs showed a uniform spherical shape with a size of 141.01 ± 1.07 nm and polydispersity index < 0.2; moreover, BP3@HSA NPs were more readily taken up by breast cancer cells and had a stronger inhibitory effect in vitro than free BP3. BP3@HSA NPs also demonstrated the ability to degrade HSP90. Mechanistically, the improved inhibitory effect of BP3@HSA NPs on breast cancer cells was related to its stronger ability to induce cell cycle arrest and apoptosis. Furthermore, BP3@HSA NPs improved PK properties and showed stronger tumour suppression in mice. Taken together, this study demonstrated that hydrophobic HSP90-PROTAC BP3 nanoparticles encapsulated by human serum albumin could improve the safety and antitumour efficacy of BP3. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
23. Extraction and identification of steroidal saponins from Polygonatum cyrtonema Hua using natural deep eutectic solvent‐synergistic quartz sand‐assisted extraction method.
- Author
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Liu, Gaodan, Feng, Simin, Sui, Minghui, Chen, Bilian, and Sun, Peilong
- Subjects
TIME-of-flight mass spectrometry ,SAPONINS ,MACROPOROUS polymers ,QUARTZ ,RESPONSE surfaces (Statistics) ,NANOPARTICLES ,SAND - Abstract
In this study, quartz sand with particularly sharp nanoscale edges acted like a nanoscale knife physically cut cells of Polygonatum cyrtonema Hua into nanosized particles and was synergized with natural deep eutectic solvent to extract steroidal saponins of Polygonatum cyrtonema Hua. The natural deep eutectic solvent (choline chloride‐lactic acid)‐synergistic quartz sand‐assisted extraction was optimized using response surface methodology. The steroidal saponins purified with AB‐8 macroporous resin were identified using ultra‐high‐performance liquid chromatography‐triple time of flight mass spectrometry. The results showed that the experimental total saponins content value (36.97 ± 0.12 mg dioscin equivalent/g dry weight) at optimal extraction conditions with a temperature of 68°C, a rotational speed of 20 400 rpm, shear time of 4.3 min, the liquid‐solid ratio of 38 ml/g, was close to the maximum possible theoretical value (36.64 mg dioscin equivalent/g dry weight). A total of 20 steroidal saponins were identified, among which the content of (25R)‐Kingianoside E was the highest (102.66 ± 3.47 mg/g). Furthermore, a new steroid saponin (3β,25S)‐26‐(β‐D‐glucopyranosyloxy)‐22‐hydroxyfurost‐5‐en‐3‐yl 4‐O‐β‐D‐glucopyranosyl‐β‐D‐galactopyranoside+Glc was found for the first time. These results revealed that natural deep eutectic solvent‐synergistic quartz sand‐assisted extraction was an efficient and green method to extract a variety of steroidal saponins. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. Surface Functionalized Sensors for Humidity‐Independent Gas Detection
- Author
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Minghui Yang, Ye Zhu, Chaozhu Huang, Haichuan Guo, Fengdong Qu, Xuyun Guo, Shendan Zhang, Tiju Thomas, and J. Paul Attfield
- Subjects
Materials science ,Nanoparticle ,semiconductors ,engineering.material ,010402 general chemistry ,sensors ,01 natural sciences ,Catalysis ,metal–organic frameworks ,Coating ,metal oxides ,Relative humidity ,Sensitivity (control systems) ,hydrophobicity ,Tandem ,010405 organic chemistry ,business.industry ,Humidity ,General Chemistry ,General Medicine ,0104 chemical sciences ,Semiconductor ,engineering ,Optoelectronics ,nanoparticles ,business ,Layer (electronics) - Abstract
Semiconducting metal oxides (SMOXs) are used widely for gas sensors. However, the effect of ambient humidity on the baseline and sensitivity of the chemiresistors is still a largely unsolved problem, reducing sensor accuracy and causing complications for sensor calibrations. Presented here is a general strategy to overcome water-sensitivity issues by coating SMOXs with a hydrophobic polymer separated by a metal–organic framework (MOF) layer that preserves the SMOX surface and serves a gas-selective function. Sensor devices using these nanoparticles display near-constant responses even when humidity is varied across a wide range [0–90 % relative humidity (RH)]. Furthermore, the sensor delivers notable performance below 20 % RH whereas other water-resistance strategies typically fail. Selectivity enhancement and humidity-independent sensitivity are concomitantly achieved using this approach. The reported tandem coating strategy is expected to be relevant for a wide range of SMOXs, leading to a new generation of gas sensors with excellent humidity-resistant performance.
- Published
- 2021
25. Pt@polydopamine nanoparticles as nanozymes for enhanced photodynamic and photothermal therapy
- Author
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Xibao Gao, Nan Sun, Junbai Li, Hongqian Cao, Yang Yang, Yuntian Ma, and Minghui Liang
- Subjects
Indoles ,Infrared Rays ,Photothermal Therapy ,Polymers ,medicine.medical_treatment ,Mice, Nude ,Nanoparticle ,Photodynamic therapy ,Nanotechnology ,Catalysis ,Mice ,Cell Line, Tumor ,Neoplasms ,Materials Chemistry ,medicine ,Animals ,Humans ,Platinum ,Photosensitizing Agents ,Chemistry ,technology, industry, and agriculture ,Metals and Alloys ,General Chemistry ,Photothermal therapy ,Xenograft Model Antitumor Assays ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Photochemotherapy ,Therapy Effect ,Reagent ,Ceramics and Composites ,Nanoparticles - Abstract
Polydopamine nanoparticles were used to stabilize a nano-Pt catalyst to relieve tumour hypoxia in photodynamic therapy (PDT). Polydopamine not only provides a platform for carrying nano-Pt and photosensitizers but is also used as a photothermal reagent for photothermal therapy (PTT). The system presented an enhanced anti-tumor therapy effect through a combined PDT and PTT mechanism.
- Published
- 2021
26. Self-Regeneration Performance and Characterization of Silver-Containing Activated Carbon Fibers Coated by Titanium Dioxide
- Author
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Wenjing Liu, Wang Han, Minghui Zhang, and Zeyu Guo
- Subjects
carbon materials ,liquefied wood ,self-regeneration ,photodegradation ,nanoparticles ,Organic chemistry ,QD241-441 - Abstract
In this study, wood-based activated carbon fibers (WACF) were modified by Ag nanoparticles (AgNPs) and TiO2 films. The coating of TiO2 films decreased the AgNPs agglomeration and exfoliation on WACF. As the soaking concentration of AgNO3 solution (Sconc) increased, AgNPs size and content increased, while the pore volume (especially micropore volume) of fibers reduced. However, at higher Sconc in the range of 0.2 to0.4 mol/L, only slight variations in AgNPs content and pore structure were observable for WACF/TiO2/Ag (Ag-containing WACF coated by TiO2 film). WACF/TiO2/Ag-0.1 (0.1 was the soaking concentration of AgNO3 solution, mol/L) represented the best self-regeneration performance under the visible light irradiation. The self-regeneration performance of WACF/TiO2/Ag was determined by the synergistic effects of two factors: adsorption and photodegradation. The abundant pores of WACF/TiO2/Ag-0.1 increased the methylene blue (MB) concentration of TiO2 surrounding and facilitated the MB photodegradation. Meanwhile, their suitable Ag content enhanced MB photodegradation. Furthermore, the principal pathway of a chemical reaction between Ag+ and WACF was interpreted based on the data of surface elemental constituents and surface functional groups.
- Published
- 2019
- Full Text
- View/download PDF
27. A study on singlet oxygen generation for tetracycline degradation via modulating the size of α-Fe2O3 nanoparticle anchored on g-C3N4 nanotube photocatalyst.
- Author
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Zhu, Hongjie, Li, Minghui, Zou, Luning, Hu, Youyou, Hao, Hongguo, Dou, Jianmin, and Mao, Junjie
- Subjects
TETRACYCLINE ,PHOTOCATALYSTS ,ACTIVATION energy ,CHEMICAL reactions ,NANOPARTICLES - Abstract
Photocatalysis is considered as an effective technique for mitigating ecological risks posed by residual tetracycline (TC). To improve the efficiency of this technique, it is necessary to enable photocatalysts to produce highly reactive species, such as singlet oxygen (
1 O2 ). However, due to the high activation energy of1 O2 , photocatalysts can hardly produce1 O2 without assistance from external oxidants. Herein, we find that the size-reduced α-Fe2 O3 nanoparticles (∼ 4 nm) that anchored on g-C3 N4 nanotube (α-Fe2 O3 @CNNT) can spontaneously generate1 O2 for degradation of TC. In comparison, only hydroxyl radical (·OH) can be produced by g-C3 N4 nanotube loaded with ∼ 14 nm α-Fe2 O3 nanoparticles (α-Fe2 O3 /CNNT). Owing to the high reactivity of the1 O2 species, the photocatalytic degradation rate (Kapp ) of TC with α-Fe2 O3 @CNNT (0.056 min−1 ) was 1.8 times higher than that of α-Fe2 O3 /CNNT. The experimental results and theoretical calculations suggested that reducing the size of α-Fe2 O3 nanoparticles anchored on g-C3 N4 nanotube decreased the surface electron density of α-Fe2 O3 , which induces the generation of high-valent Fe(IV) active sites over α-Fe2 O3 @CNNT and turns the degradation pathway into a unique1 O2 dominated process. This study provides a new insight on the generation of1 O2 for effective degradation of environmental pollutant. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
28. Reactive nanostructured membranes for water purification
- Author
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Lewis, Scott R., Datta, Saurav, Gui, Minghui, Coker, Eric L., Huggins, Frank E., Daunert, Sylvia, Bachas, Leonidas, and Bhattacharyya, Dibakar
- Published
- 2011
29. Blood-triggered generation of platinum nanoparticle functions as an anti-cancer agent
- Author
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Gen Zhang, Jie Sun, Xin Zeng, Suping Li, Jing Kong, Wei Sun Leong, Yi Zhou Wu, Chengxin Liu, Yiqi Wu, Jiyun Shi, Minghui Li, Yuming Fu, Han Gao, Ping Li, and Guangjun Nie
- Subjects
Male ,0301 basic medicine ,Time Factors ,Cancer therapy ,endocrine system diseases ,Kidney Glomerulus ,Metal Nanoparticles ,General Physics and Astronomy ,Apoptosis ,Protein Corona ,02 engineering and technology ,Mice ,Drug Delivery Systems ,lcsh:Science ,Zebrafish ,health care economics and organizations ,Mice, Inbred BALB C ,Multidisciplinary ,Chemistry ,Drug Tolerance ,Hep G2 Cells ,respiratory system ,021001 nanoscience & nanotechnology ,Glutathione ,female genital diseases and pregnancy complications ,Drug delivery ,Female ,0210 nano-technology ,medicine.drug ,inorganic chemicals ,Daunorubicin ,Science ,education ,Mice, Nude ,Antineoplastic Agents ,Article ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,Medical research ,In vivo ,Cell Line, Tumor ,medicine ,Animals ,Humans ,Particle Size ,Platinum ,Cisplatin ,technology, industry, and agriculture ,General Chemistry ,Xenograft Model Antitumor Assays ,In vitro ,Mice, Inbred C57BL ,030104 developmental biology ,Cancer research ,Nanoparticles ,lcsh:Q ,K562 Cells ,K562 cells - Abstract
Since the discovery of metal nanoparticles (NPs) in the 1960s, unknown toxicity, cost and the ethical hurdles of research in humans have hindered the translation of these NPs to clinical use. In this work, we demonstrate that Pt NPs with protein coronas are generated in vivo in human blood when a patient is treated with cisplatin. These self-assembled Pt NPs form rapidly, accumulate in tumors, and remain in the body for an extended period of time. Additionally, the Pt NPs are safe for use in humans and can act as anti-cancer agents to inhibit chemotherapy-resistant tumor growth by consuming intracellular glutathione and activating apoptosis. The tumor inhibitory activity is greatly amplified when the Pt NPs are loaded in vitro with the chemotherapeutic drug, daunorubicin, and the formulation is effective even in daunorubicin-resistant models. These in vivo-generated metal NPs represent a biocompatible drug delivery platform for chemotherapy resistant tumor treatment., Platinum based drugs like cisplatin are common chemotherapy treatments for cancer. Here, the authors report on the in situ formation of platinum nanoparticles in patients and demonstrated how platinum nanoparticles can be synthesized using patients’ blood and provide effective drug delivery and cancer treatments.
- Published
- 2020
30. Proteomic analysis of intracellular protein corona of nanoparticles elucidates nano-trafficking network and nano-bio interactions
- Author
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Qiang Zhang, Xueqing Wang, Dechun Liu, Jijun Fu, Wenbing Dai, Yiguang Wang, Dan Yang, Hua Zhang, Mengmeng Qin, Siyang Song, Jian Zhang, Bing He, and Minghui Li
- Subjects
quantitative proteomics ,Proteomics ,Endosome ,Quantitative proteomics ,Medicine (miscellaneous) ,transcytosis ,Metal Nanoparticles ,Protein Corona ,02 engineering and technology ,Endosomes ,010402 general chemistry ,01 natural sciences ,nano-bio interaction ,parasitic diseases ,Human Umbilical Vein Endothelial Cells ,Humans ,cardiovascular diseases ,Pharmacology, Toxicology and Pharmaceutics (miscellaneous) ,intracellular protein corona ,Chemistry ,021001 nanoscience & nanotechnology ,Subcellular localization ,0104 chemical sciences ,Protein Transport ,Nanomedicine ,Transcytosis ,Colloidal gold ,Biophysics ,nanoparticles ,Gold ,Caco-2 Cells ,0210 nano-technology ,Research Paper - Abstract
The merits of nanomedicines are significantly impacted by the surrounding biological environment. Similar to the protein corona generated on the surface of nanoparticles in the circulation system, the intracellular protein corona (IPC) might be formed on nanoparticles when transported inside the cells. However, little is known currently about the formation of IPC and its possible biological influence. Methods: Caco-2 cells, a classical epithelial cell line, were cultured in Transwell plates to form a monolayer. Gold nanoparticles (AuNPs) were prepared as the model nanomedicine due to their excellent stability. Here we focused on identifying IPC formed on the surface of AuNPs during cell transport. The nanoparticles in the basolateral side of the Caco-2 monolayer were collected and analyzed by multiple techniques to verify IPC formation. High-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based proteomics was utilized to analyze the composition of IPC proteins. In particular, we established a dual-filtration strategy to exclude various interference in IPC identification. Based on the subcellular localization of specific IPC proteins, we elicited the nano-trafficking network of AuNPs. The transport pathways of AuNPs identified by proteomic analysis were also verified by various conventional technologies. Finally, we explored the influence of IPC on the uptake and stress response of endothelium. Results: The existence of IPC was demonstrated on the surface of AuNPs, in which 227 proteins were identified. Among them, 40 proteins were finally ascertained as the specific IPC proteins. The subcellular location analysis indicated that these "specific" IPC proteins could back-track the transport pathways of nanoparticles in the epithelial cell monolayer. According to the subcellular distribution of IPC proteins and co-localization, we discovered a new pathway of nanoparticles from endosomes to secretory vesicles which was dominant during the transcytosis. After employing conventional imageology and pharmacology strategies to verify the result of proteomic analysis, we mapped a comprehensive intracellular transport network. Our study also revealed the merits of IPC analysis, which could readily elucidate the molecular mechanisms of transcytosis. Besides, the IPC proteins increased the uptake and stress response of endothelium, which was likely mediated by extracellular matrix and mitochondrion-related IPC proteins. Conclusion: The comprehensive proteomic analysis of IPC enabled tracing of transport pathways in epithelial cells as well as revealing the biological impact of nanoparticles on endothelium.
- Published
- 2020
31. Toxicity and mechanism of mesoporous silica nanoparticles in eyes
- Author
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Xia Chen, Dayu Sun, Lingling Ge, Xianliang Gu, Bo Liu, Minghui Li, Cao Yang, Shuang Zhu, Junling Yang, Wei Wu, Haiwei Xu, Yijian Li, Xisu Hu, and Zhanjun Gu
- Subjects
Silver ,Cell Survival ,DNA damage ,Metal Nanoparticles ,02 engineering and technology ,03 medical and health sciences ,Animals ,General Materials Science ,Viability assay ,Cytotoxicity ,030304 developmental biology ,chemistry.chemical_classification ,0303 health sciences ,Reactive oxygen species ,Chemistry ,Mesoporous silica ,Silicon Dioxide ,021001 nanoscience & nanotechnology ,Rats ,Nanotoxicology ,Toxicity ,Biophysics ,Nanoparticles ,Reactive Oxygen Species ,0210 nano-technology ,Fetal bovine serum - Abstract
The study on the safety of nanomaterials in eyes is still in its early stages. In this study, we put our focus on the effect of one important nanoparticle feature - large surface area - to assess eye safety. To this end, mesoporous silica nanoparticles (MSiNPs) were for the first time employed as a model to evaluate their toxicity in eyes. The porosity of the MSiNPs endows them with a large surface area and the ability to attach to surrounding chemical or biological molecules, further enhancing their surface reactivity and toxic effects. Therefore, to better mimic MSiNP exposure in real environments, we also introduced other hazardous substances such as silver ions (Ag+) to the system and then investigated their synergistic nanotoxicity. Our results showed that the exposure to MSiNPs-Ag+ and even Ag+ at a safe dose, resulted in more significant toxicity than the MSiNPs alone, as evidenced from cell viability, apoptosis, reactive oxygen species (ROS) production, and DNA damage experiments. RNA-Sequencing analysis revealed that the mRNA surveillance signalling pathway plays a unique role in regulating MSiNPs-Ag+-induced cytotoxicity. Besides this, severe corneal damage and dry eye were observed in rat models upon exposure to MSiNPs-Ag+ compared to MSiNPs. Most importantly, we also proposed a protein corona-based therapy to treat MSiNP-induced corneal disease, where the corneal damage could be rescued by fetal bovine serum (FBS) treatment.
- Published
- 2020
32. Pectin-zein based stigmasterol nanodispersions ameliorate dextran sulfate sodium-induced colitis in mice
- Author
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Mohamed A. Farag, Dan Wang, Ping Shao, Christos Ritzoulis, Minghui Sui, and Simin Feng
- Subjects
Male ,food.ingredient ,Pectin ,Sodium ,Zein ,Stigmasterol ,chemistry.chemical_element ,Cofactor ,chemistry.chemical_compound ,Mice ,food ,medicine ,Animals ,Food science ,Colitis ,Solubility ,Drug Carriers ,biology ,Phytosterol ,Dextran Sulfate ,food and beverages ,General Medicine ,medicine.disease ,Mice, Inbred C57BL ,chemistry ,biology.protein ,Cytokines ,Nanoparticles ,Pectins ,Hemoglobin ,Food Science ,Signal Transduction - Abstract
Due to the insolubility of phytosterols in both water and oil, their application in the medicine and health and food industries is limited. In this study, zein and pectin were selected as wall materials of phytosterol nanoparticles to enhance the solubility and bioactivity of phytosterols. The colitis-inhibitory effects of zein-based stigmasterol nanodispersions (ZNs) and zein/pectin-based stigmasterol nanodispersions (ZPNs) were investigated in the sodium dextran sulfate (DSS)-induced colitis mouse model. The results showed that ZPNs’ therapeutic effect was better than that of ZNs. According to electron microscopy observation, pectin adsorbed on the surface of zein appeared to form an elastic network structure, which increased the stability of stigmasterol nanodispersions. ZPNs not only relieved the adverse physiological symptoms of colitis in mice, but additionally prevented colonic length shortening and reduced fecal hemoglobin content. Immunohistochemical analysis showed that ZPNs could alleviate colitis by inhibiting the NF-κB signaling pathway involved in the expression of inflammatory factors TNF-α, IL-6, IL-1β, CSF-1 and coenzyme COX-2. This study suggests that supplement of nano-embedded stigmasterol based on zein and pectin has a positive therapeutic effect on alleviating colitis in mice. Such activities of nano-embedded stigmasterol in humans remain to be investigated.
- Published
- 2021
33. Hyaluronic Acid-modified Redox-sensitive Hybrid Nanocomplex Loading With siRNA for Non-small-cell Lung Carcinoma Therapy
- Author
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Daoyuan Chen, Peng Zhang, Minghui Li, Congcong Li, Xiaoyan Lu, Yiying Sun, and Kaoxiang Sun
- Subjects
safety ,Male ,Dendrimers ,Lung Neoplasms ,Cell Survival ,Surface Properties ,Chemistry, Pharmaceutical ,Mice, Nude ,Pharmaceutical Science ,Apoptosis ,RM1-950 ,Mice ,Carcinoma, Non-Small-Cell Lung ,Cell Line, Tumor ,Animals ,Hyaluronic Acid ,Particle Size ,RNA, Small Interfering ,antitumor ,Drug Carriers ,Mice, Inbred BALB C ,General Medicine ,Non-viral gene vector ,Drug Liberation ,Nylons ,siRNA ,redox-sensitive nanocomplex ,Nanoparticles ,Therapeutics. Pharmacology ,Oxidation-Reduction - Abstract
A novel hyaluronic acid (HA)-modified hybrid nanocomplex HA-SeSe-COOH/siR-93C@PAMAM which could efficiently deliver siRNA into tumor cells via a redox-mediated intracellular disassembly, was constructed for enhance antitumor efficacy. Thereinto, siR-93 (siRNA) and positive PAMAM were firstly mixed into the electrostatic nano-intermediate, and then diselenide bond (-SeSe-)-modified HA was coved to shield excessive positive charges. This hybrid nanocomplex displayed uniform dynamic sizes, high stability, and controlled zeta potentials and narrow PDI distribution. Moreover, the -SeSe- linkage displayed GSH/ROS dual responsive properties, improving intracellular trafficking of siRNA. In vitro assays in A549 cell line presented that HA-SeSe-COOH/siR-93C@PAMAM has low cytotoxicity, rapid lysosomal escape and significant transfection efficiency; besides, an efficient proliferation inhibition ability and enhanced apoptosis. Furthermore, in animal studies, this negative-surfaced hybrid nanocomplex showed a prolonged circulation in blood and improved inhibition of tumor growth. All these results verified our hypothesis in this study that diselenide bonds-modified HA could promote not only stability and safety of nanoparticles in vivo but also intracellular behavior of siRNA via redox-dual sensitive properties; furthermore, this hybrid nanocomplex provided a visible potential approach for siRNA delivery in antitumor field.
- Published
- 2021
34. Amphiphilic nano-delivery system based on modified-chitosan and ovalbumin: Delivery and stability in simulated digestion
- Author
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Lihua Li, Xinyu Sun, Hui Zhang, Mengna Dong, Jiao Wang, Shuang Zhao, Minghui Shang, Xin Wang, Hui Zhangsun, and Li Wang
- Subjects
Chitosan ,Drug Carriers ,Polymers and Plastics ,Ovalbumin ,Polysaccharides ,Organic Chemistry ,Materials Chemistry ,Nanoparticles ,Digestion ,Quercetin ,Nanoparticle Drug Delivery System - Abstract
Nano-delivery systems play an important role in the development of nutritional supplements due to their efficient encapsulation and delivery properties for nutrients. Herein, we prepared protein-polysaccharide nanoparticles as a novel amphiphilic nano-delivery system based on gallic acid modified chitosan (GCS) and ovalbumin (OVA) by pH-driven and calcium ion crosslinking. The nanoparticles loaded with hydrophilic riboflavin (Rib) and hydrophobic quercetin (Que) as nutrient models were abbreviated as GCS-OVA-Rib NPs and GCS-OVA-Que NPs, respectively. Their encapsulation efficiencies for Rib and Que. were 66.36 % and 96.61 %, respectively. In addition, GCS-OVA-Rib NPs and GCS-OVA-Que NPs showed antioxidant activity as well as good stability and delivery capacity for Rib and Que. in simulated digestion with release ratios of 78.38 % and 84.15 %, respectively. More importantly, GCS-OVA-Rib/Que. NPs performed good biocompatibility for further applications. Overall, this work provides some useful insights for the design of novel amphiphilic nano-delivery systems based on polysaccharides and proteins.
- Published
- 2021
35. Regulating glucose metabolism using nanomedicines for cancer therapy
- Author
-
Ming Tang, Minghui Ding, Changhui Fu, Xiangling Ren, and Xianwei Meng
- Subjects
Drug ,media_common.quotation_subject ,Cell ,Biomedical Engineering ,Cancer therapy ,Heat resistance ,Antineoplastic Agents ,02 engineering and technology ,Carbohydrate metabolism ,03 medical and health sciences ,Neoplasms ,medicine ,Humans ,Nanotechnology ,General Materials Science ,030304 developmental biology ,media_common ,0303 health sciences ,business.industry ,Tumor therapy ,General Chemistry ,General Medicine ,Hypoxia (medical) ,021001 nanoscience & nanotechnology ,Cancer treatment ,medicine.anatomical_structure ,Glucose ,Nanomedicine ,Cancer research ,Nanoparticles ,medicine.symptom ,0210 nano-technology ,business - Abstract
The regulation of glucose metabolism is a research focus in cancer treatment. Glucose metabolism is essential for maintaining the growth and proliferation of tumor cells, thus offering us great opportunities for tumor treatment. Recently, much progress has been made in efficient cancer treatment by regulating the pathway of glucose metabolism with nanomedicines due to the rapid development of nanotechnology and promising drug targets. In this review, we first introduced the pathway of cell energy supply from the perspective of aerobic and anaerobic processes. Then, we discussed the recent research progress in regulating glucose metabolism for various tumor resistance strategies including heat resistance, multiple drug resistance, and hypoxia. Finally, we presented the prospects and challenges of developing multifunctional nanoagents for efficient chemotherapy, hyperthermia, dynamic therapy and so on by regulating glucose metabolism.
- Published
- 2021
36. Millimeter‐Sized Hierarchical Porous Titanosilicate Supported Ultrafine Ag Nanoparticles as Highly Efficient Catalyst.
- Author
-
Wang, Minghui, Shu, Ting, Ge, Xinfeng, Hu, Jun, and Liang, Yunxiao
- Subjects
- *
CATALYTIC activity , *CATALYSTS , *HETEROGENEOUS catalysts , *MESOPORES , *MICROPORES , *NANOPARTICLES , *PRECIOUS metals - Abstract
Developing easily recyclable noble metal nanoparticle‐based heterogeneous catalysts is highly desirable for the practical applications. Herein, a millimeter‐sized hierarchical porous titanosilicate (HPTS) was prepared by the multi‐template method. Various characterization results reveal that HPTS combines the structural advantages of monolith materials and nanomaterials. HPTS is used as an advanced support to construct the Ag/HPTS catalysts via the Ag+ in situ reduction on its pore wall. Ag/HPTS shows high catalytic activity for 4‐nitrophenol (4‐NP) reduction with the TOF values of 3.91 min−1, which can be attributed to the ultrafine Ag NPs (2.04 nm) and the unique structure of HPTS. The 3D pass‐through macroporous channels facilitate mass transfer. The mesopores with ultra‐short channel remarkably enhance the accessibility of the active sites. The abundant mesopores and micropores effectively confine the Ag NPs size. Moreover, Ag/HPTS demonstrated good stability and recyclability. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
37. Copper ferrite nanoparticles anchored laser-induced graphene as novel nanoenzyme for the electrochemical catalyzing and sensing of β-estradiol in serum.
- Author
-
Cai, Minghui, Yao, Haixu, Li, Mengnan, Yan, Yan, Cao, Yang, Li, Jiaxin, Su, Huiyu, Zhang, Wenwen, Zhu, Hui, and Cui, Feiyun
- Subjects
- *
COPPER ferrite , *NANOPARTICLES , *X-ray photoelectron spectroscopy , *GRAPHENE , *TRANSMISSION electron microscopes , *CARBON electrodes - Abstract
• We use copper ferrite nanoparticles and laser-induced graphene to modify SPCE. • This innovative biosensor can detect β-E2 in rats serum samples. • This sensor provides a new strategy for non-enzymatic β-E2 sensing. • This sensor may help to diagnosis and monitor female reproductive diseases. β-estradiol is one of the most active hormones in steroids, and it plays a vital role in the human reproductive and non-reproductive systems. Compared with other methods for detecting β-estradiol, electrochemical biosensors are economical, simple, sensitive, and rapid. Herein, spinel copper ferrite nanoparticles and laser-induced graphene (LIG) were employed to functionalize screen-printed carbon electrodes (SPCE) for the first time, and it demonstrated that they have a synergistic effect on the catalysis of β-estradiol. Differential pulse voltammetry (DPV) was used to detect the changes in the peak current generated by the oxidation of β-estradiol. The nanoparticles were characterized by Fourier infrared spectroscopy, transmission electron microscope, scanning electron microscopy, X-ray photoelectron spectroscopy (XPS), and X-ray Diffraction (XRD), and the composition elements and morphology of the nanoparticles were explained. The linear range of β-estradiol detected by this method is 0.1 ∼ 100 μM, R2 = 0.9992, and the detection limit is 3 nM. The sensor has good selectivity, reproducibility, repeatability, stability, and anti-interference performance. In rat serum, the recovery of the sensor at 100, 10, and 1 μM β-estradiol was 105 % ∼ 110 %, with relative standard deviations of 2.3 % ∼ 4.0 % (N = 3). This study shows that the sensor can be applied to detect actual samples and has potential application value for female reproductive-related diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. Photoelectrochemical assay for the detection of circulating tumor cells based on aptamer-Ag
- Author
-
Zaoxia, Wang, Junjun, Luo, Minghui, Yang, and Xianggui, Wang
- Subjects
Silver ,Immunomagnetic Separation ,Neoplasms ,MCF-7 Cells ,Humans ,Nanoparticles ,Biosensing Techniques ,Electrochemical Techniques ,Aptamers, Nucleotide ,Epithelial Cell Adhesion Molecule ,Neoplastic Cells, Circulating ,HeLa Cells - Abstract
In this work, we developed a photoelectrochemical assay for circulating tumor cells (CTCs) detection based on hexagonal carbon-nitrogen tubes (HCNT) as visible light-sensitive materials. The MCF-7 cell was selected as the model CTC and was captured through specific recognition between epithelial cell adhesion molecules (EpCAM) on the cell surface and anti-EpCAM antibodies. Anti-EpCAM antibody-modified magnetic nanoparticles were used to enrich and separate MCF-7 cells from samples. The detection signal was amplified by Ag
- Published
- 2021
39. Novel D-A-D-Type Supramolecular Aggregates with High Photoelectric Activity for Construction of Ultrasensitive Photoelectrochemical Biosensor
- Author
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Ruo Yuan, Liaojing Huang, Minghui Zhu, Yaqin Chai, Hanmei Deng, Xiao-Rui Liu, and Yali Yuan
- Subjects
Models, Molecular ,Molecular Conformation ,Supramolecular chemistry ,Biosensing Techniques ,Imides ,010402 general chemistry ,01 natural sciences ,Analytical Chemistry ,chemistry.chemical_compound ,Limit of Detection ,Diimide ,Electrochemistry ,Perylene ,010401 analytical chemistry ,DNA ,Photoelectric effect ,Enzymes, Immobilized ,Photochemical Processes ,Silicon Dioxide ,Combinatorial chemistry ,0104 chemical sciences ,Exodeoxyribonucleases ,chemistry ,Nanoparticles ,Biosensor ,Derivative (chemistry) - Abstract
In this work, hydrazine-functionalized perylene diimide derivative supramolecular (HPDS), a novel self-enhanced donor-acceptor-donor (D-A-D) type aggregates with excellent photoelectric activity, was synthesized by a facile one-pot green route and further applied in construction of coreactant-free photoelectrochemical (PEC) biosensor for ultrasensitive DNA assay. Impressively, the HPDS formed by D-A-D units not only possessed effectively shorted electron-transfer path between donor and acceptor, but also presented a desiring aggregate state via the π-π stacking of perylene core and hydrogen bonding of the terminal moiety, thereby acquiring a high density electron flow for generating the extremely high PEC signal. Experimental data showed that the well film-formed HPDS aggregate could produce an exciting photocurrent intensity about 6-fold stronger than that of precursor perylene dianhydride with donor N
- Published
- 2019
40. Ultrafast and efficient removal of anionic dyes from wastewater by polyethyleneimine-modified silica nanoparticles
- Author
-
Minghui Li, Bi Shi, Jianfei Zhou, Chuanhui Mu, and Yuling Tang
- Subjects
Anions ,Environmental Engineering ,Health, Toxicology and Mutagenesis ,0208 environmental biotechnology ,macromolecular substances ,02 engineering and technology ,Naphthalenes ,Wastewater ,010501 environmental sciences ,Sulfonic acid ,Waste Disposal, Fluid ,01 natural sciences ,Silica nanoparticles ,chemistry.chemical_compound ,symbols.namesake ,Adsorption ,X-Ray Diffraction ,Spectroscopy, Fourier Transform Infrared ,Polyethyleneimine ,Environmental Chemistry ,Coloring Agents ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Benzenesulfonates ,technology, industry, and agriculture ,Public Health, Environmental and Occupational Health ,Langmuir adsorption model ,General Medicine ,General Chemistry ,Silicon Dioxide ,Pollution ,Environmentally friendly ,Acid fuchsin ,020801 environmental engineering ,Kinetics ,chemistry ,Chemical engineering ,Thermogravimetry ,Microscopy, Electron, Scanning ,symbols ,Nanoparticles ,Amine gas treating ,Azo Compounds ,Water Pollutants, Chemical - Abstract
Trace anionic dyes in wastewater are difficult to be rapidly and efficiently removed because they are completely soluble and poorly biodegradable. Herein, a facile and environmentally friendly adsorbent was fabricated via the surface functioned SiO2 with abundant amine groups of polyethyleneimine (PEI). The structural characterization indicated that PEI was successfully immobilized on the SiO2 surface. The adsorption performance of SiO2-PEI was evaluated using acid orange II (AOII) as model pollutant. The adsorption of AOII on SiO2-PEI displayed high removal rates in the pH range of 2.0–9.0, and exhibited ultrafast removal (99.1% removal rate at 10 min). The adsorption behavior fitted well with the Langmuir isotherm and pseudo-second-order kinetic model, and the maximum uptake capability of AOII was higher than 705.3 mg/g. The excellent adsorption capacity of AOII on SiO2-PEI mainly relied on the electrostatic attraction between the sulfonic acid group of AOII and amine group of PEI in the adsorption process. Additionally, other anionic dyes like acid fuchsin and direct sky blue 5B could also be fast and efficiently removed by SiO2-PEI. This work is expected to open new possibilities for the ultrafast removal of anionic dye pollutants.
- Published
- 2019
41. Biomimetic Immunomagnetic Nanoparticles with Minimal Nonspecific Biomolecule Adsorption for Enhanced Isolation of Circulating Tumor Cells
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Yue Sun, Wei Liu, Xiaoyun Wei, Qian-Fang Meng, Yan-Xiang Cheng, Qinqin Huang, Xingzhong Zhao, Wei Xie, Rui Li, Lang Rao, Shishang Guo, and Minghui Zan
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Male ,Materials science ,Cell ,Nanoparticle ,Cell Separation ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Circulating tumor cell ,Biomimetic Materials ,medicine ,Humans ,General Materials Science ,Liquid biopsy ,chemistry.chemical_classification ,Vesicle ,Biomolecule ,Prostatic Neoplasms ,Neoplastic Cells, Circulating ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Surface coating ,Red blood cell ,medicine.anatomical_structure ,chemistry ,PC-3 Cells ,MCF-7 Cells ,Biophysics ,Nanoparticles ,0210 nano-technology ,HeLa Cells - Abstract
Immunomagnetic micro/nanoparticles (IMNs) have been widely used to isolate rare circulating tumor cells (CTCs) from blood samples for early diagnosis of cancers. However, when entering into biofluids, IMNs nonspecifically adsorb biomolecules and the in situ formed biomolecule corona covers IMN surface ligands and weakens the targeting capabilities of IMNs. In this work, we demonstrated that by surface coating of IMNs with red blood cell (RBC)-derived vesicles, the obtained biomimetic particles (RBC-IMNs) basically adsorb no biomolecules and maintain the CTC targeting ability when exposed to plasma. Compared to IMNs, RBC-IMNs exhibited an excellent cell isolation efficiency in spiked blood samples, which was improved to 95.71% from 60.22%. Furthermore, by using RBC-IMNs, we successfully isolated CTCs in 28 out of 30 prostate cancer patient blood samples and further showed the robustness of RBC-IMNs in downstream cell sequencing. The work presented here provides a new insight into developing targeted nanomaterials for biological and medical applications.
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- 2019
42. Cancer Cell Membrane Camouflaged Nanoparticles to Realize Starvation Therapy Together with Checkpoint Blockades for Enhancing Cancer Therapy
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Huiming Huang, Liben Chen, Daoming Zhu, Wen-Tao Wu, Wei Liu, Li-Wei Ji, Wei Xie, Wei-Wei Deng, Guang-Tao Yu, Wen-Fei Dong, Kan Liu, Bei Chen, Lang Rao, Shishang Guo, Wen-Feng Zhang, Zhi-Jun Sun, Minghui Zan, Yufeng Yuan, and Xingzhong Zhao
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Surface Properties ,medicine.medical_treatment ,Melanoma, Experimental ,General Physics and Astronomy ,Nanoparticle ,Antineoplastic Agents ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Glucose Oxidase ,Mice ,Immune system ,Tumor Cells, Cultured ,medicine ,Animals ,General Materials Science ,Particle Size ,Chemistry ,Melanoma ,Cell Membrane ,General Engineering ,Immunotherapy ,Dendritic cell ,Mesoporous silica ,Silicon Dioxide ,021001 nanoscience & nanotechnology ,medicine.disease ,0104 chemical sciences ,Membrane ,Cancer cell ,Cancer research ,Nanoparticles ,0210 nano-technology ,Porosity - Abstract
Although anti-PD-1 immunotherapy is widely used to treat melanoma, its efficacy still has to be improved. In this work, we present a therapeutic method that combines immunotherapy and starvation therapy to achieve better antitumor efficacy. We designed the CMSN-GOx method, in which mesoporous silica nanoparticles (MSN) are loaded with glucose oxidase (GOx) and then encapsulate the surfaces of cancer cell membranes to realize starvation therapy. By functionalizing the MSN's biomimetic surfaces, we can synthesize nanoparticles that can escape the host immune system and homologous target. These attributes enable the nanoparticles to have improved cancer targeting ability and enrichment in tumor tissues. Our synthetic CMSN-GOx complex can ablate tumors and induce dendritic cell maturity to stimulate an antitumor immune response. We performed an in vivo analysis of these nanoparticles and determined that our combined therapy CMSN-GOx plus PD-1 exhibits a better antitumor therapeutic effect than therapies using CMSN-GOx or PD-1 alone. Additionally, we used the positron emission tomography imaging to measuring the level of glucose metabolism in tumor tissues, for which we investigate the effect with the cancer therapy in vivo.
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- 2019
43. Dissection of the antibacterial mechanism of zinc oxide nanoparticles with manipulable nanoscale morphologies
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Xinyi, Zhu, Jun, Wang, Ling, Cai, Yuan, Wu, Minghui, Ji, Huijun, Jiang, and Jin, Chen
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Environmental Engineering ,Biofilms ,Health, Toxicology and Mutagenesis ,Escherichia coli ,Nanoparticles ,Environmental Chemistry ,Microbial Sensitivity Tests ,Zinc Oxide ,Pollution ,Waste Management and Disposal ,Anti-Bacterial Agents - Abstract
Despite the extensive uses of ZnO nanoparticles as promising antimicrobial agents to tackle the severe microbial infections, the systematic antibacterial studies on ZnO nanoparticles with manipulable nanoscale morphologies at the genetic expression level remain ill-defined. In this study, via a controllable thermal decomposition, ZnO nanoparticles of different morphologies were facilely prepared. Additionally, the surface PEGylation of ZnO was conducted to obtain the nanoparticles of low biotoxicity. While all the prepared ZnO nanoparticles exhibited the significantly chemical activities, the pronounced antibacterial effect of obtained ZnO nanoparticles was also identified, in which the ultra-small ones (~5 nm) showed the best performance. Moreover, the antibacterial activities of ZnO nanoparticles were studied by bacterial nucleic acid leakage, alkaline phosphatase, biofilm and reactive oxygen species (ROS) assays. Furthermore, the transcriptome analysis of ZnO nanoparticles with different morphologies against Escherichia coli (E. coli) revealed the underlying antibacterial mechanism involved the signal transduction, material transport, energy metabolism and other biological processes. Therefore, the cost-effective preparation of ZnO nanoparticles with distinct morphological features provides insights for the development of application specific antibacterial agents.
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- 2022
44. Engineering Exosome-Like Nanovesicles Derived from Asparagus cochinchinensis Can Inhibit the Proliferation of Hepatocellular Carcinoma Cells with Better Safety Profile
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Fengjun He, Yutong Wang, Lihong Hu, Jialu Xu, Lei Zhang, Hongzhi Qiao, Minghui Cong, Sajid Asghar, Lina Gao, Yang Hu, and Juan Sun
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Male ,exosome-like nanovesicles ,Asparagus cochinchinensis ,Cell ,Pharmaceutical Science ,Apoptosis ,02 engineering and technology ,Pharmacology ,Exosomes ,01 natural sciences ,Polyethylene Glycols ,International Journal of Nanomedicine ,Drug Discovery ,Nanotechnology ,Tissue Distribution ,Cytotoxicity ,Original Research ,antitumor ,Mice, Inbred BALB C ,Chemistry ,Liver Neoplasms ,General Medicine ,021001 nanoscience & nanotechnology ,Endocytosis ,Hep G2 ,medicine.anatomical_structure ,0210 nano-technology ,Carcinoma, Hepatocellular ,Biophysics ,Mice, Nude ,Bioengineering ,Antineoplastic Agents ,010402 general chemistry ,Exosome ,Biomaterials ,In vivo ,Cell Line, Tumor ,medicine ,exosome ,Animals ,Humans ,engineering exosome ,Asparagaceae ,Cell Proliferation ,Cell growth ,Organic Chemistry ,Xenograft Model Antitumor Assays ,0104 chemical sciences ,PEGylation ,Nanoparticles - Abstract
Lei Zhang,1,* Fengjun He,1,* Lina Gao,1 Minghui Cong,1 Juan Sun,2 Jialu Xu,2 Yutong Wang,2 Yang Hu,1 Sajid Asghar,3 Lihong Hu,1,2 Hongzhi Qiao1,2,4 1Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People’s Republic of China; 2State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People’s Republic of China; 3Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan; 4Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing University of Chinese Medicine, Nanjing, 210023, People’s Republic of China*These authors contributed equally to this workCorrespondence: Hongzhi Qiao; Lihong HuSchool of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, People’s Republic of ChinaEmail qiaohz@njucm.edu.cn; lhhu@njucm.edu.cnBackground: Exosomes are a type of membrane vesicles secreted by living cells. Recent studies suggest exosome-like nanovesicles (ELNVs) from fruits and vegetables are involved in tissue renewal process and functional regulation against inflammatory diseases or cancers. However, there are few reports on ELNVs derived from medicinal plants.Methods: ELNVs derived from Asparagus cochinchinensis (Lour.) Merr. (ACNVs) were isolated and characterized. Cytotoxicity, antiproliferative and apoptosis-inducing capacity of ACNVs against hepatoma carcinoma cell were assessed. The endocytosis mechanism of ACNVs was evaluated on Hep G2 cells in the presence of different endocytosis inhibitors. In vivo distribution of ACNVs was detected in healthy and tumor-bearing mice after scavenger receptors (SRs) blockade. PEG engineering of ACNVs was achieved through optimizing the pharmacokinetic profiles. In vivo antitumor activity and toxicity were evaluated in Hep G2 cell xenograft model.Results: ACNVs were isolated and purified using a differential centrifugation method accompanied by sucrose gradient ultracentrifugation. The optimized ACNVs had an average size of about 119 nm and showed a typical cup-shaped nanostructure containing lipids, proteins, and RNAs. ACNVs were found to possess specific antitumor cell proliferation activity associated with an apoptosis-inducing pathway. ACNVs could be internalized into tumor cells mainly via phagocytosis, but they were quickly cleared once entering the blood. Blocking the SRs or PEGylation decoration prolonged the blood circulation time and increased the accumulation of ACNVs in tumor sites. In vivo antitumor results showed that PEGylated ACNVs could significantly inhibit tumor growth without side effects.Conclusion: This study provides a promising functional nano platform derived from edible Asparagus cochinchinensis that can be used in antitumor therapy with negligible side effects.Keywords: exosome, exosome-like nanovesicles, Asparagus cochinchinensis, engineering exosome, antitumor
- Published
- 2021
45. Ultrasound Elastography under Deep Learning Algorithm to Analyze the Therapeutic Effect of Clustered Regularly Interspaced Short Palindromic Repeats Short Hairpin Ribonucleic Acid Nanoparticles on Cervical Cancer
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Liang Zhao, Minghui Li, and Weiwei Li
- Subjects
Medicine (General) ,Article Subject ,Biomedical Engineering ,Uterine Cervical Neoplasms ,Health Informatics ,Small hairpin RNA ,R5-920 ,Deep Learning ,Medical technology ,CRISPR ,Medicine ,Humans ,Clustered Regularly Interspaced Short Palindromic Repeats ,R855-855.5 ,Cervical cancer ,business.industry ,Deep learning ,Ultrasound ,Therapeutic effect ,Palindrome ,medicine.disease ,Recurrent neural network ,Elasticity Imaging Techniques ,Nanoparticles ,RNA ,Surgery ,Female ,Artificial intelligence ,business ,Algorithm ,Algorithms ,Biotechnology ,Research Article - Abstract
This study aimed to analyze the effect of the deep learning algorithm on ultrasound elastography on the treatment of cervical cancer with clustered regularly interspaced short palindromic repeats (CRISPR) short hairpin ribonucleic acid (shRNA) nanoparticles, aiming to provide a reference for the clinical application of deep learning to analyze the therapeutic effect of the disease. In this study, CRISPR and shRNA plasmid nanoparticle drugs were used to treat 55 patients with cervical cancer in the experimental group, and normal saline was injected to another 53 patients in the control group, so compare the effect of nanoparticles in the treatment of cervical cancer. Professional doctors and the recurrent neural network (RNN) intelligent algorithm were used to score cervical cancer based on the ultrasound elastograph images by taking blue, green, and red (BGR) as diagnosis criteria. As a result, the experimental group had a total of 217 points before drug administration and a total of 224 points after drug administration. Each patient had an average increase of 0.13 points. The control group had a total of 200 points before drug administration and a total of 223 points after drug administration, and each patient had an average increase of 0.43 points. The experimental group was obviously different from the control group ( P < 0.05 ). Each tissue image output by the RNN was clearer than the original image, and the score given by intelligent calculation was faster than that of professional doctors. The monitoring effect of the deep learning RNN intelligent algorithm on the therapeutic effect of nanomedicine was analyzed. It was found that the average accuracy of the experimental group and the control group was 98.95% and 90.34%, respectively; and the experimental group was greatly different from the control group ( P < 0.05 ). In short, nano-CRISPR and shRNA drugs had remarkable effects on the treatment of cervical cancer, and the scores given by the deep learning intelligent algorithm were faster and more accurate, which provided theoretical guidance for the clinical application of deep learning algorithms to analyze the treatment effects of diseases.
- Published
- 2021
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46. Graphene‐Enabled Electric‐Field Regulation and Ionic Redistribution Around Lithiophilic Aurum Nanoparticles Toward a Dendrite‐Free and 2000‐Cycle‐Life Lithium Metal Battery.
- Author
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Yan, Jianping, Ye, Minghui, Zhang, Yufei, Tang, Yongchao, Liu, Xiaoqing, and Li, Cheng Chao
- Subjects
- *
LITHIUM cells , *GOLD nanoparticles , *NANOPARTICLES , *CHARGE exchange , *ACTIVATION energy , *CARBON foams , *FOAM - Abstract
Lithium metal batteries (LMBs) have attracted extensive attention owing to their high energy density. However, the uncontrolled volume changes and serious dendrite growth of the Li metal anode have hindered their commercialization. Herein, a three‐dimensional Cu foam decorated with Au nanoparticles and conformal graphene layer was designed to tune the Li plating/stripping behaviors. The 3D−Cu conductive host anchored by lithiophilic Au nanoparticles can effectively alleviate the volume expansion caused by the continuous plating/stripping of Li and reduce the nucleation energy barrier. Notably, the conductive graphene not only facilitates the transfer of electrons, but also acts as an ionic rectifier, thereby avoiding the aggregation of local current density and Li+ ions around Au nanoparticles and enabling the uniform Li+ flux. As a result, the G−Au@3D−Cu/Li anode ensures the non‐dendritic and homogeneous Li+ plating/stripping. Electrochemical results show that the symmetric G−Au@3D−Cu/Li cell delivers a low voltage hysteresis of 110 mV after 1000 h at 1 mA cm−2. Matched with a layered LiNi0.6Co0.2Mn0.2O2 cathode, the NCM622||G−Au@3D−Cu/Li full cell exhibits a long cycle life of 2000 cycles and an ultra‐low capacity decay rate (0.01 % per cycle). [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. Removal of triclosan from water by sepiolite supported bimetallic Fe/Ni nanoparticles.
- Author
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Ren, Guofa, Shi, Yichao, Cai, Yunmei, Yuan, Lingling, Wu, Kangming, Ouyang, Minghui, and Zheng, Kewen
- Subjects
MEERSCHAUM ,TRICLOSAN ,TRANSMISSION electron microscopy ,NANOPARTICLES ,WATER chlorination ,SCANNING electron microscopy ,ARSENIC removal (Water purification) ,AQUEOUS solutions - Abstract
A simple and low-cost route to fabricate sepiolite-supported bimetallic Fe/Ni (Sep-Fe/Ni) nanoparticles was obtained by synchronous liquid phase reduction method. The as prepared composite was used to remove triclosan (TCS) from aqueous solutions. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller (BET) analysis were used for characterization of the materials. As the supporting material, Sep dispersed Fe/Ni nanoparticles on its surface effectively and reduced the agglomeration phenomenon, providing more reactive sites. Sep-Fe/Ni had a large surface area of 90.5 m
2 /g, which was considerably higher than that of Fe/Ni (9.2 m2 /g). Sep-Fe/Ni exhibited an enhanced TCS removal efficiency, as compared to the Fe/Ni and Sep materials. Operation factors, including the solution pH, initial TCS concentration, and material dosage, were investigated and found to be influential for TCS removal. The kinetic analysis indicated that the depletion of TCS in aqueous solutions conformed to the pseudo-first-order kinetic model under optimized conditions. The transformation pathway of TCS was studied in detail, revealing that the dechlorination of TCS by Sep-Fe/Ni is a stepwise reaction, namely from TCS to di-chlorinated intermediates, with the newly formed intermediate products also degrading into mono-chlorinated products by further reductive dechlorination. This study demonstrated that Sep-Fe/Ni is a promising reductant for TCS removal in water. [ABSTRACT FROM AUTHOR]- Published
- 2022
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- View/download PDF
48. Construction of Three‐Dimensional In‐Zn‐Cd‐S Composite Materials and Their Visible‐Light Catalytic Performance.
- Author
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Gong, Xiaoyu, Li, Zhiqiang, Yu, Minghui, Yu, Hao, Wang, Shuang, Shao, Hongyu, Cheng, Yuye, Dou, Minghao, Li, Danni, Li, Shenjie, and Chen, Yanyan
- Subjects
COMPOSITE materials ,SEMICONDUCTOR materials ,BAND gaps ,ADSORPTION capacity ,FREE radicals ,PHOTODEGRADATION ,HETEROJUNCTIONS - Abstract
In this paper, a simple template‐free one‐step hydrothermal method was used to construct three‐dimensional In−Zn−Cd−S composite materials. By changing the ratio of In3+/(Zn2++Cd2+) and controlling the band gap of semiconductor, a novel efficient and stable photocatalyst was designed. In−Zn−Cd−S composite showed good adsorption capacity and photocatalytic activity. When In3+/(Zn2++Cd2+) was equal to 1/5, the photocatalytic activity of the composite was the highest. The degradation rate of RhB could reach 92.6 % within 5 min, and 97.6 % after 15 min. The results of cyclic experiments show that the IZCS‐4 catalyst has good cyclic performance and structural stability. According to the free radical capture experiment, the main effect of IZCS‐4 on the photodegradation of organic pollutants is H+ and ⋅O2−. The enhanced photocatalytic activity of the alloy semiconductor material is mainly because it can effectively separate the photogenerated carriers and successfully inhibit the photocorrosion of In2S3 monomer. [ABSTRACT FROM AUTHOR]
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- 2022
- Full Text
- View/download PDF
49. Co-delivery of docetaxel and endostatin by a biodegradable nanoparticle for the synergistic treatment of cervical cancer
- Author
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Qiu, Bo, Ji, Minghui, Song, Xiaosong, Zhu, Yongqiang, Wang, Zhongyuan, Zhang, Xudong, Wu, Shu, Chen, Hongbo, Mei, Lin, and Zheng, Yi
- Published
- 2012
- Full Text
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50. Multi-functional Nanodrug Based on a Three-dimensional Framework for Targeted Photo-chemo Synergetic Cancer Therapy
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Xiaona Wen, Juanjuan Yin, Mengyao Zhu, Enyun Xing, Jialiang Xu, Minghui Chen, Shuxian Meng, Yaqing Feng, and Yingying Du
- Subjects
Drug ,Fluorescence-lifetime imaging microscopy ,Biocompatibility ,media_common.quotation_subject ,medicine.medical_treatment ,Biomedical Engineering ,Pharmaceutical Science ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Biomaterials ,Cell Line, Tumor ,Neoplasms ,medicine ,Doxorubicin ,media_common ,Cisplatin ,Chemotherapy ,Chemistry ,Cancer ,Phototherapy ,021001 nanoscience & nanotechnology ,medicine.disease ,0104 chemical sciences ,Drug Liberation ,Cancer research ,Nanoparticles ,Methotrexate ,Graphite ,0210 nano-technology ,medicine.drug - Abstract
Targeted synergistic therapy has broad prospects in tumor treatments. Here, a multi-functional nanodrug GDYO-CDDP/DOX@DSPE-PEG-MTX (GCDM) based on three traditional anticancer drugs (doxorubicin (DOX), cisplatin (CDDP) and methotrexate (MTX)) modified graphdiyne oxide (GDYO) is described, for diagnosis and targeted cancer photo-chemo synergetic therapy. In this system, for the first time, these three traditional anti-cancer drugs have played new roles and can reduce multidrug resistance through synergistic anti-tumor effects. Cisplatin can be hybridized with GDYO to form a multifunctional and well-dispersed three-dimensional framework, which can not only be used as nano-drug carriers to achieve high drug loading rates (40.3%), but also exhibit excellent photothermal conversion efficiency (47%) and good photodynamic effects under NIR irradiation. Doxorubicin (DOX) is loaded onto GDYO-CDDP through π-π stacking, which is used as an anticancer drug and as a fluorescent probe for nanodrug detection. Methotrexate (MTX) can be applied in tumor targeting and play a role in synergistic chemotherapy with DOX and CDDP. The synthesized multi-functional nanodrug GCDM has good biocompatibility, active targeting, long-term retention, sustained drug release, excellent fluorescence imaging capabilities, and remarkable photo-chemo synergistic therapeutic effects.
- Published
- 2020
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