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30 results on '"Li, Luoyuan"'

9. Dual-channel lanthanide-doped nanoprobe for reliable multi-signal ratiometric detection of H2S in whole blood.

Author

Wei, Zheng, Cao, Tianqi, Li, Luoyuan, Zhu, Xingjun, Zhou, Jing, and Liu, Yuxin

Subjects
SERODIAGNOSIS, RARE earth metals, FLUORESCENCE, LIGHT absorbance
Abstract

Wavelength-dependent absorbance of blood has impeded the development of fluorescence biodetection in whole blood. Here, by replacing the fluorescence working signal with a temperature signal, reliable H2S detection was performed in samples of whole blood. The developed system was based on a dual-channel lanthanide-doped nanoprobe, which further allowed precise serodiagnosis of acute pancreatitis. [ABSTRACT FROM AUTHOR]

Published
2022
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13. Microenvironment-Triggered Degradable Hydrogel for Imaging Diagnosis and Combined Treatment of Intraocular Choroidal Melanoma

Author

Li, Luoyuan, primary, Zeng, Zhenhai, additional, Chen, Zhongxing, additional, Gao, Rongyao, additional, Pan, Luting, additional, Deng, Junjie, additional, Ye, Xiuhong, additional, Zhang, Jun, additional, Zhang, Shuangjie, additional, Mei, Chenyang, additional, Yu, Jinjin, additional, Feng, Yifan, additional, Wang, Qinmei, additional, Yu, A-Yong, additional, Yang, Mei, additional, and Huang, Jinhai, additional

Published
2020
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19. A facile aqueous synthesis strategy for hexagonal phase NaGdF4 nanorods.

Author

Gao, Rongyao, Sun, Liyuan, Li, Luoyuan, Pan, Tingting, Fu, Limin, Ai, Xi-Cheng, and Zhang, Jian-Ping

Subjects
PHOTON upconversion, NANORODS, LUMINESCENCE, NANOCRYSTALS, LASERS
Abstract

A facile aqueous synthesis method was developed to prepare upconversion nanocrystals, which exhibit good monodispersity, excellent hydrophilicity and fascinating upconversion luminescence performance under 980 nm laser excitation. This facile technique may provide a promising gateway to obtain upconversion nanocrystals which may favor their applications in a variety of fields. [ABSTRACT FROM AUTHOR]

Published
2019
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20. Polyaniline-coated upconversion nanoparticles with upconverting luminescent and photothermal conversion properties for photothermal cancer therapy

Author

Xing,Yadong, Li,Luoyuan, Ai,Xicheng, Fu,Limin, Xing,Yadong, Li,Luoyuan, Ai,Xicheng, and Fu,Limin

Abstract

Yadong Xing, Luoyuan Li, Xicheng Ai, Limin Fu Department of Chemistry, Renmin University of China, Beijing, People’s Republic of China Abstract: In this study, we developed a nanosystem based on upconversion nanoparticles (UCNPs) coated with a layer of polyaniline nanoparticles (PANPs). The UCNP induces upconversion luminescence for imaging and photothermal conversion properties are due to PANPs. In vitro experiments showed that the UCNPs-PANPs were nontoxic to cells even at a high concentration (800 µg mL-1). Blood analysis and histological experiments demonstrated that the UCNPs-PANPs exhibited no apparent toxicity in mice in vivo. Besides their efficacy in photothermal cancer cell ablation, the UCNP-PANP nanosystem was found to achieve an effective in vivo tumor ablation effect after irradiation using an 808 nm laser. These results demonstrate the potential of the hybrid nanocomposites for use in imaging-guided photothermal therapy. Keywords: upconversion nanoparticles, polyaniline, upconversion luminescence, photothermal therapy

Published
2016

29. Dual-channel lanthanide-doped nanoprobe for reliable multi-signal ratiometric detection of H 2 S in whole blood.

Author

Wei Z, Cao T, Li L, Zhu X, Zhou J, and Liu Y

Subjects
Acute Disease, Fluorescence, Fluorescent Dyes, Humans, Lanthanoid Series Elements, Pancreatitis
Abstract

Wavelength-dependent absorbance of blood has impeded the development of fluorescence biodetection in whole blood. Here, by replacing the fluorescence working signal with a temperature signal, reliable H 2 S detection was performed in samples of whole blood. The developed system was based on a dual-channel lanthanide-doped nanoprobe, which further allowed precise serodiagnosis of acute pancreatitis.

Published
2022
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30. Design and Fabrication of Temperature-Sensitive Nanogels with Controlled Drug Release Properties for Enhanced Photothermal Sterilization.

Author

Li L, Fu L, Ai X, Zhang J, and Zhou J

Abstract

For better removal of excessive free radicals and harmful bacteria from the human body, the development of synergistic antioxidant and antibacterial agents is urgently required. Herein, we designed novel temperature-sensitive, curcumin (Cur)-loaded nanogels for the application of scavenging reactive oxygen species and killing pathogenic bacteria. Photothermal sterilization, different from traditional antibiotics, is a promising and effective treatment for pathogenic bacterial infection. The nanogels were fabricated by using poly(N-isopropylacrylamide) (a temperature-sensitive hydrogel) to encapsulate poly(3,4-ethylenedioxythiophene) nanoparticles (photothermal agents) and Cur through a reformative precipitation polymerization. When triggered by near-IR light, the Cur-loaded nanogels exhibited high (56.8 %), and excellent temperature-sensitive effects. Moreover, the light-induced temperature increase can also weaken the interaction between the networks of PNIPAAm and Cur, to show excellent antioxidant and antibacterial performance (90 % cell death) of the nanogels., (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2017
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