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168 results on '"Zeng, Dingyuan"'

20. Comparison of pregnancy outcomes in infertile patients with different types of adenomyosis treated with high-intensity focused ultrasound

Author

Wei, Jiajia, primary, Wang, Li, additional, Tao, Hua, additional, Wang, Xindan, additional, Zheng, Fengque, additional, He, Ping, additional, Zhou, Linggang, additional, Fan, Li, additional, Chen, Jing, additional, Zhong, Haijing, additional, Huang, Wenjie, additional, Zeng, Dingyuan, additional, and Li, Jingjing, additional

Published
2023
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32. A Simple and Highly Efficient Method toward High-Density Garnet-Type LLZTO Solid-State Electrolyte

Author

Zeng Dingyuan, Bo He, Jie Gao, Fei Shen, Jun Li, Weichang Guo, Sun Zhouting, Xiaogang Han, and Bin Zhao

Subjects
Materials science, chemistry, Chemical engineering, Vickers hardness test, Pellets, Ionic conductivity, chemistry.chemical_element, Sintering, General Materials Science, Electrolyte, Conductivity, Current density, Oxygen
Abstract

Garnet-type Li7La3Zr2O12 (LLZO) is among the most attractive candidates for achieving solid-state lithium batteries. LLZO pellets with high density are preferred because of their potential to prevent dendritic Li growth and penetration. However, the presence of pores inside the LLZO electrolyte is inevitable if it is prepared by a traditional solid-state reaction. Large numbers of pores have an adverse influence on both the ionic conductivity and density of the LLZO pellets. In this work, we studied the origin of pore formation in Li6.4La3Zr1.4Ta0.6O12 (LLZTO) and introduced a fast oxygen-assisted sintering method to eliminate the pores. All of the basic physical properties of the LLZTO sintered in oxygen for only 1 h are better than those of the LLZTO sintered in air. The conductivity and Vickers hardness of the LLZTO increased to 6.13 × 10-4 S cm-1 and 9.82 GPa, corresponding to 12.3% and 62.8% enhancement, respectively, even at a low precalcined temperature of 600 °C. A Li||Li symmetric cell with the LLZTO sintered in oxygen also showed more stable and longer cycling at a higher current density (0.4 mA cm-2).

Published
2020

33. PAN/PI functional double-layer coating for dendrite-free lithium metal anodes

Author

Xiaogang Han, Fei Shen, Zeng Dingyuan, Yuting Yin, Wang Kaiming, and Le Shi

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Polyacrylonitrile, 02 engineering and technology, General Chemistry, engineering.material, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Anode, Dendrite (crystal), chemistry.chemical_compound, Coating, Chemical engineering, chemistry, engineering, General Materials Science, Fiber, 0210 nano-technology, Layer (electronics), Faraday efficiency, Electrochemical potential
Abstract

Li metal anodes attract intensive attention due to their high specific capacity, low density and the lowest electrochemical potential. However, inferior coulombic efficiency (CE) and safety hazards induced by uncontrollable Li dendrite growth are main obstacles against the commercialization of Li metal batteries (LMBs). Herein, we demonstrate that the polyacrylonitrile fiber/polyimide sphere (PAN fiber/PI sphere) double-layer coating can serve as an interfacial functional layer to guide uniform Li deposition and inhibit the formation of Li dendrites. Owing to polar groups and regularly arranged PI spheres of the coating layer, Li||PAN/PI@Cu cells display high coulombic efficiency and long cycle life at a current density of 1 mA cm−2, maintaining an average CE of ∼98.5% after 400 cycles with a deposition capacity of 1 mA h cm−2.

Published
2020

35. Newborn screening with targeted sequencing: a multicenter investigation and a pilot clinical study in China

Author

Hao, Chanjuan, primary, Guo, Ruolan, additional, Hu, Xuyun, additional, Qi, Zhan, additional, Guo, Qi, additional, Liu, Xuanshi, additional, Liu, Yuanhu, additional, Sun, Yanhua, additional, Zhang, Xiaofen, additional, Jin, Feng, additional, Wu, Xiujie, additional, Cai, Ren, additional, Zeng, Dingyuan, additional, Hu, Xijiang, additional, Wang, Xiaohua, additional, Ji, Xiaoping, additional, Li, Wenjie, additional, Xing, Quansheng, additional, Mu, Lanfang, additional, Jiang, Xiulian, additional, Yang, Xue, additional, Yang, Weimin, additional, Zhang, Yan, additional, Yin, Qianli, additional, Ni, Xin, additional, and Li, Wei, additional

Published
2022
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36. Identification and Functional Characterization of a Novel Nonsense Variant in ARR3 in a Southern Chinese Family With High Myopia

Author

Yuan, Dejian, primary, Yan, Tizhen, additional, Luo, Shiqiang, additional, Huang, Jun, additional, Tan, Jianqiang, additional, Zhang, Jianping, additional, Zhang, Victor Wei, additional, Lan, Yueyuan, additional, Hu, Taobo, additional, Guo, Jing, additional, Huang, Mingwei, additional, and Zeng, Dingyuan, additional

Published
2021
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37. Focused ultrasound: a novel therapy for improving vaginal microecology in patients with high-risk HPV infection.

Author

Tao, Hua, Zeng, Dingyuan, Chen, Wenzhi, Li, Fang, Zhong, Haijing, Fu, Jinjian, Liu, Hanzhi, Ying, Ting, Wang, Li, Chen, Jing, Wang, Zhibiao, and Shi, Qiuling

Subjects
*MICROBIAL ecology, *HUMAN papillomavirus, *BACTERIAL vaginitis, *VISUAL fields, *DRUG therapy
Abstract

To investigate changes in vaginal microecology in women with high-risk human papillomavirus (HR-HPV) infection after focused ultrasound (FU) treatment. We collected vaginal secretions at the time of admission and 3 months after FU treatment from 169 women who received FU treatment for cervical HR-HPV infection between July 2020 and September 2022. Among them, there were 101 patients with cute vaginitis, we also collected their vaginal secretions after one week of drug treatment. These samples were evaluated for vaginal microecology and HPV-DNA examination. Of the 169 patients, 101 (59.7%) suffered from acute vaginitis at the time of admission. After one week of targeted antibiotics drug treatment, there were no pathogens or pus cells on the field of microscopic vision, but there was no significant difference(p > 0.05) in the diversity and density of vaginal flora, the proportion and function of Lactobacillus (H2O2 negative rate) between one week after treatment and at the time of admission. At the time of admission of the 169 patients, the normal flora rate was 40.3%, which increased to 93.5% three months after FU treatment. The differences in vaginal secretion parameters at the time of admission and 3 months after FU treatment were as follows: H2O2 negative rate (37.3% vs. 3.6%), leukocyte esterase positive rate (54.4% vs. 5.9%), sialidase positive rate (38.5% vs. 4.1%), bacterial vaginitis positive rate (55% vs. 4.7%), fungal vaginitis positive rate (44.4% vs. 5.9%), and trichomonal vaginitis positive rate (7.1% vs. 0). The difference was statistically significant (p < 0.01). The pH value and Nagent score at the time of admission were significantly higher than those three months after FU. Three months after FU, the positive rate of HPV was 5.8% in the group of patients with normal vaginal microecology at the time of admission and post-FU; it was 6.7% in the group of patients with abnormal vaginal microecology at the time of admission and normal vaginal microecology post-FU; and it was 100% in the group patients with abnormal vaginal microecology at the time of admission and post-FU. A significant difference was observed among the three groups (p < 0.01). FU is an effective treatment for patients with cervical HR-HPV infection. FU does not interfere with the vaginal microecology of HR-HPV positive patients with normal vaginal microecology.FU followed by antibiotic drug therapy for pathogens is beneficial to restore the function of Lactobacillus vaginalis in HR-HPV positive patients with acute vaginitis,so as to improve the vaginal microecology of HR-HPV positive patients with abnormal vaginal microecology. [ABSTRACT FROM AUTHOR]

Published
2023
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44. Interactions between genetic variants involved in the folate metabolic pathway and serum lipid, homocysteine levels on the risk of recurrent spontaneous abortion

Author

Jinjian Fu, Zeng Dingyuan, Li Qianxi, Yifan Sun, Zhong Lin, Jingchun Huang, Wan Wang, and Jianhua Xu

Subjects
Adult, medicine.medical_specialty, Genotype, Homocysteine, Endocrinology, Diabetes and Metabolism, Clinical Biochemistry, 030209 endocrinology & metabolism, Single-nucleotide polymorphism, 030204 cardiovascular system & hematology, MTHFR C677T, 03 medical and health sciences, chemistry.chemical_compound, Folic Acid, 0302 clinical medicine, Endocrinology, Insulin resistance, Pregnancy, Internal medicine, medicine, Humans, MTHFR A1298C, Genetic Predisposition to Disease, Allele, lcsh:RC620-627, Alleles, Methylenetetrahydrofolate Reductase (NADPH2), biology, business.industry, Research, Biochemistry (medical), Lipid profiles, (Methionine synthase) reductase, medicine.disease, MTRR, digestive system diseases, MTRR A66G, Abortion, Spontaneous, lcsh:Nutritional diseases. Deficiency diseases, chemistry, Case-Control Studies, Methylenetetrahydrofolate reductase, biology.protein, Female, business, Recurrent spontaneous abortion
Abstract

Background The interaction between folate pathway gene polymorphisms and homocysteine, serum lipid leverls are poorly understood in patients with recurrent spontaneous abortion (RSA). The aim of this study is to explore the effects of folate pathway gene polymorphisms (the 5–10-methylenetetrahydrofolate reductase, MTHTR C677T, MTHFR A1298C and the methionine synthase reductase, MTRR A66G) and their interactions with homocysteine on serum lipid levels in patients with RSA. Methods A total of 403 RSA women and 342 healthy women were randomly selected. Genotyping of the MTHFR C677T, A1298C and MTRR A66G were performed by TaqMan-MGB technique. Serum homocysteine, folate, fasting glucose, fasting insulin, Interleukin 6, Tumor necrosis factorα (TNFα) and lipid profiles were measured according to the kits. Continuous variables were analyzed using 2-sample t-tests. Categorical variables were analyzed and compared by χ 2 or Fisher’s exact tests. Unconditional logistic regression model was applied to test the interactions of gene polymorphisms on RSA. Results The distribution of genotype of CC, CT TT and T allele of MTHFR C677T, genotype of AA and C allele of MTHFR A1298C, and genotype of AA, AG and G allele of MTRR A66G were different between cases and controls (all p were

Published
2019

47. LiCoO2/Li6.75La3Zr1.75Nb0.25O12 interface modification enables all-solid-state battery

Author

Fei Shen, Xiaogang Han, Yuting Yin, Weichang Guo, Zeng Dingyuan, and Hong Guo

Subjects
Battery (electricity), Work (thermodynamics), Materials science, Mechanical Engineering, Interface (computing), Nanotechnology, 02 engineering and technology, Electrolyte, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Electrochemistry, 01 natural sciences, Cathode, 0104 chemical sciences, law.invention, Mechanics of Materials, law, Nano, Fast ion conductor, General Materials Science, 0210 nano-technology
Abstract

All-solid-state batteries with garnet-type solid electrolytes are expected to achieve high safety. However, poor contact between the cathode and the solid-state electrolyte remains a bottleneck in improving electrochemical performance. We propose an interface modification strategy by adopting nano γ-Al2O3 as a co-sintering additive to address the interfacial issue. The Li|Li6.75La3Zr1.75Nb0.25O12|LiCoO2 all-solid-state battery exhibits promoted capacities due to intimate interfacial contact between the cathode and the electrolyte after modification. This work provides a low-cost and convenient strategy to overcome the interfacial issue in all-solid-state batteries.

Published
2021

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