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Srivastava AK, Singh A, Singh B, Murawski K, Zaqarashvili TV, Yuan D, Scullion E, Mishra SK, Dwivedi BN. Alfvén pulse driven spicule-like jets in the presence of thermal conduction and ion-neutral collision in two-fluid regime. Philos Trans A Math Phys Eng Sci 2024; 382:20230220. [PMID: 38679049 DOI: 10.1098/rsta.2023.0220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/19/2024] [Indexed: 05/01/2024]
Abstract
We present the formation of quasi-periodic cool spicule-like jets in the solar atmosphere using 2.5-D numerical simulation in two-fluid regime (ions+neutrals) under the presence of thermal conduction and ion-neutral collision. The nonlinear, impulsive Alfvénic perturbations at the top of the photosphere trigger field aligned magnetoacoustic perturbations due to ponderomotive force. The transport of energy from Alfvén pulse to such vertical velocity perturbations due to ponderomotive force is considered as an initial trigger mechanism. Thereafter, these velocity perturbations steepen into the shocks followed by quasi-periodic rise and fall of the cool jets transporting mass in the overlying corona. This article is part of the theme issue 'Partially ionized plasma of the solar atmosphere: recent advances and future pathways'.
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Affiliation(s)
- A K Srivastava
- Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Anshika Singh
- Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Balveer Singh
- Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263001, India
| | - K Murawski
- Institute of Physics, University of Maria Curie-Sklodowska,Pl. M. Curie-Sklodowskiej, 20-0531 Lublin, Poland
| | - T V Zaqarashvili
- Institut of Physics, IGAM, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
- Department of Astronomy and Astrophysics at Space Research Center, School of Natural Sciences and Medicine, Ilia State University, Kakutsa Cholokashvili Ave. 3/5, Tbilisi 0162, Georgia
- Evgeni Kharadze Georgian National Astrophysical Observatory, Abastumani, Adigeni 0301, Georgia
| | - D Yuan
- Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, Guangdong 518055, People's Republic of China
| | - E Scullion
- Department of Mathematics, Physics and Electrical Engineering, Northumbria University, NE1 8ST Newcastle upon Tyne, UK
| | - Sudheer K Mishra
- Astronomical Observatory, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - B N Dwivedi
- Rajiv Gandhi Institute of Petroleum Technology, Jais Amethi 229304, India
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Yang L, Zhang L, Li Y, Lee BH, Kim J, Lee HS, Bok J, Ma Y, Zhou W, Yuan D, Wang AL, Bootharaju MS, Zhang H, Hyeon T, Chen J. Cation Exchange in Colloidal Transition Metal Nitride Nanocrystals. J Am Chem Soc 2024; 146:12556-12564. [PMID: 38660792 DOI: 10.1021/jacs.4c01219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Transition metal nitride (TMN)-based nanostructures have emerged as promising materials for diverse applications in electronics, photonics, energy storage, and catalysis due to their highly desirable physicochemical properties. However, synthesizing TMN-based nanostructures with designed compositions and morphologies poses challenges, especially in the solution phase. The cation exchange reaction (CER) stands out as a versatile postsynthetic strategy for preparing nanostructures that are otherwise inaccessible through direct synthesis. Nevertheless, exploration of the CER in TMNs lags behind that in metal chalcogenides and metal phosphides. Here, we demonstrate cation exchange in colloidal metal nitride nanocrystals, employing Cu3N nanocrystals as starting materials to synthesize Ni4N and CoN nanocrystals. By controlling the reaction conditions, Cu3N@Ni4N and Cu3N@CoN core@shell heterostructures with tunable compositions can also be obtained. The Ni4N and CoN nanocrystals are evaluated as catalysts for the electrochemical oxygen evolution reaction (OER). Remarkably, CoN nanocrystals demonstrate superior OER performance with a low overpotential of 286 mV at 10 mA·cm-2, a small Tafel slope of 89 mV·dec-1, and long-term stability. Our CER approach in colloidal TMNs offers a new strategy for preparing other metal nitride nanocrystals and their heterostructures, paving the way for prospective applications.
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Affiliation(s)
- Lei Yang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Liping Zhang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Ye Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Byoung-Hoon Lee
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02481, Republic of Korea
| | - Jiheon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyeon Seok Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Jinsol Bok
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Yanbo Ma
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Wansheng Zhou
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan 410004, P. R. China
| | - An-Liang Wang
- Key Laboratory for Colloid and Interface Chemistry Ministry of Education, State Key Laboratory of Crystal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Megalamane S Bootharaju
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Hemin Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Junze Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
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Chen Z, Wu Q, Han X, Wang C, Chen J, Hu T, He Q, Zhu X, Yuan D, Chen J, Zhang Y, Yang L, Ma Y, Zhao J. Converting Commercial Zn Foils into Single (002)-Textured Zn with Millimeter-Sized Grains for Highly Reversible Aqueous Zinc Batteries. Angew Chem Int Ed Engl 2024; 63:e202401507. [PMID: 38407548 DOI: 10.1002/anie.202401507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Rechargeable aqueous zinc batteries are promising but hindered by unfavorable dendrite growth and side reactions on zinc anodes. In this study, we demonstrate a fast melting-solidification approach for effectively converting commercial Zn foils into single (002)-textured Zn featuring millimeter-sized grains. The melting process eliminates initial texture, residual stress, and grain size variations in diverse commercial Zn foils, guaranteeing the uniformity of commercial Zn foils into single (002)-textured Zn. The single (002)-texture ensures large-scale epitaxial and dense Zn deposition, while the reduction in grain boundaries significantly minimizes intergranular reactions. These features enable large grain single (002)-textured Zn shows planar and dense Zn deposition under harsh conditions (100 mA cm-2, 100 mAh cm-2), impressive reversibility in Zn||Zn symmetric cell (3280 h under 1 mA cm-2, 830 h under 10 mAh cm-2), and long cycling stability over 180 h with a high depth of discharge value of 75 %. This study successfully addresses the issue of uncontrollable texture formation in Zn foils following routine annealing treatments with temperatures below the Zn melting point. The findings of this study establish a highly efficient strategy for fabricating highly reversible single (002)-textured Zn anodes.
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Affiliation(s)
- Zibo Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Qiang Wu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Xuran Han
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Cheng Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Jialu Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Tao Hu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Qian He
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Xinyue Zhu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, Hunan, 410004, P. R. China
| | - Jianyu Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Yu Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Lijun Yang
- Key Laboratory of Mesoscopic Chemistry of MOE and Jiangsu Provincial Laboratory for Nanotechnology School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yanwen Ma
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
- Suzhou Vocational Institute of Industrial Technology, Suzhou, 215104, P. R. China
| | - Jin Zhao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
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Yuan D, Li H, Dai W, Zhou X, Zhou W, He L. IGF2BP3-stabilized CAMK1 regulates the mitochondrial dynamics of renal tubule to alleviate diabetic nephropathy. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167022. [PMID: 38216068 DOI: 10.1016/j.bbadis.2024.167022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/24/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND CAMK1 has been shown to be involved in human disease progression via regulating mitochondrial dynamics. However, whether CAMK1 mediates mitochondrial dynamics to regulate diabetic nephropathy (DN) process remains unclear. METHODS Mice were injected with streptozotocin (STZ) to mimic diabetic mice models in vivo, and mice with proximal tubule-specific knockout of CAMK1 (CAMK1-KO) were generated. HK-2 cells were treated with high-glucose (HG) to mimic DN cell model in vitro. Histopathological analysis was performed to confirm kidney injury in mice. ROS production and apoptosis were assessed by DHE staining and TUNEL staining. Mitochondria morphology was observed and analyzed by electron microscopy. Mitochondrial membrane potential was detected by JC-1 staining, and cell proliferation was measured by EdU assay. The mRNA and protein expression were examined by qRT-PCR, western blot and immunostaining. RNA interaction was confirmed by RIP assay and dual-luciferase reporter assay. The mRNA stability was tested by actinomycin D treatment, and m6A level was examined by MeRIP assay. RESULTS CAMK1 was reduced in DN patients and STZ-induced diabetic mice. Conditional deletion of CAMK1 aggravated kidney injury and promoted mitochondrial fission in diabetic mice. CAMK1 overexpression inhibited mitochondrial fission to alleviate HG-induced HK-2 cell apoptosis. IGF2BP3 promoted the stability of CAMK1 mRNA by m6A modification. IGF2BP3 inhibited mitochondrial fission to repress cell apoptosis in vitro and kidney injury in vivo by increasing CAMK1 expression. CONCLUSION IGF2BP3-mediated CAMK1 mRNA stability alleviated DN progression by inhibiting mitochondria fission.
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Affiliation(s)
- Du Yuan
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Hao Li
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Wenni Dai
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Xun Zhou
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Wen Zhou
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Liyu He
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China.
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Zhou B, Zhang C, Deng H, Chen S, Chang Y, Yang Y, Fu G, Yuan D, Zhao H. [Protective effects of total saponins from Panax japonicus against high-fat diet-induced testicular Sertoli cell junction damage in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1145-1154. [PMID: 37488797 PMCID: PMC10366514 DOI: 10.12122/j.issn.1673-4254.2023.07.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
OBJECTIVE To investigate the protective effects of total saponins from Panax japonicus (TSPJ) against high-fat dietinduced testicular Sertoli cell junction damage in mice. METHODS Forty male C57BL/6J mice were randomized into normal diet group, high-fat diet group, and low-dose (25 mg/kg) and high-dose (75 mg/kg) TSPJ treatment groups (n=10). The mice in the normal diet group were fed a normal diet, while the mice in the other groups were fed a high-fat diet. After TSPJ treatment via intragastric administration for 5 months, the testes and epididymis of the mice were collected for measurement of weight, testicular and epididymal indices and sperm parameters. HE staining was used for histological evaluation of the testicular tissues and measurement of seminiferous tubule diameter and seminiferous epithelium height. The expression levels of ZO-1, occludin, claudin11, N-cadherin, E-cadherin and β-catenin in Sertoli cells were detected with Western blot, and the localization and expression levels of ZO-1 and β-catenin in the testicular tissues were detected with immunofluorescence assay. The protein expressions of LC3B, p-AKT and p-mTOR in testicular Sertoli cells were detected using double immunofluorescence assay. RESULTS Treatment with TSPJ significantly improved high-fat diet-induced testicular dysfunction by reducing body weight (P < 0.001), increasing testicular and epididymal indices (P < 0.05), and improving sperm concentration and sperm viability (P < 0.05). TSPJ ameliorated testicular pathologies and increased seminiferous epithelium height of the mice with high-fat diet feeding (P < 0.05) without affecting the seminiferous tubule diameter. TSPJ significantly increased the expression levels of ZO-1, occludin, N-cadherin, E-cadherin and β-catenin (P < 0.05) but did not affect claudin11 expression in the testicular tissues. Immunofluorescence assay showed that TSPJ significantly increased ZO-1 and β-catenin expression in the testicular tissues (P < 0.001), downregulated LC3B expression and upregulated p-AKT and p-mTOR expressions in testicular Sertoli cells. CONCLUSION TSPJ alleviates high-fat diet-induced damages of testicular Sertoli cell junctions and spermatogenesis possibly by activating the AKT/mTOR signaling pathway and inhibiting autophagy of testicular Sertoli cells.
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Affiliation(s)
- B Zhou
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - C Zhang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - H Deng
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - S Chen
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Y Chang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Y Yang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - G Fu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - D Yuan
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
| | - H Zhao
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
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Yuan X, Dong T, Liu J, Cui Y, Dong H, Yuan D, Zhang H. Bi-affinity Electrolyte Optimizing High-Voltage Lithium-Rich Manganese Oxide Battery via Interface Modulation Strategy. Angew Chem Int Ed Engl 2023:e202304121. [PMID: 37226711 DOI: 10.1002/anie.202304121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 05/26/2023]
Abstract
The practical implementation of high-voltage lithium-rich manganese oxide (LRMO) cathode is limited by the formation of dendrites, unanticipated electrolyte decomposition, and dissolution of transition metal ions. The present study proposes a bi-affinity electrolyte formulation, wherein the sulfonyl group of ethyl vinyl sulfone (EVS) imparts a highly adsorptive nature to LRMO, while fluoroethylene carbonate (FEC) exhibits a reductive nature towards Li metal. This interface modulation strategy involves the synergistic use of EVS and FEC as additives to form robust interphase layers on the electrode. As-formed S-endorsed but LiF-assisted configuration cathode electrolyte interphase with a more dominant -SO2- component may promote the interface transport kinetics and prevent the dissolution of transition metal ions. Furthermore, the incorporation of S component into the solid electrolyte interphase and the reduction of its poorly conducting component can effectively inhibit the growth of lithium dendrites. Therefore, a 4.8 V LRMO/Li cell with optimized electrolyte may demonstrate a remarkable retention capacity of 97% even after undergoing 300 cycles at 1 C.
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Affiliation(s)
- Xuedi Yuan
- Zhengzhou University, School of Henan Institute of Advanced Technology, CHINA
| | - Tao Dong
- Institute of Process Engineering Chinese Academy of Sciences, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, CHINA
| | - Jiaxin Liu
- Institute of Process Engineering Chinese Academy of Sciences, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, CHINA
| | - Yingyue Cui
- Institute of Process Engineering Chinese Academy of Sciences, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, CHINA
| | - Haotian Dong
- Zhengzhou University, School of Henan Institute of Advanced Technology, Zhengzhou University, CHINA
| | - Du Yuan
- Changsha University of Science and Technology, College of Materials Science and Engineering, CHINA
| | - Haitao Zhang
- Institute of Process Engineering Chinese Academy of Sciences, BeiErtiao No. 1#, ZhongguanCun, Haidian District, Beijing, CHINA
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Zhang H, Yuan D, Zhao J, Ji X, Zhang YZ. Gel Electrolytes: Chemistry and Applications. Chem Asian J 2023:e202300360. [PMID: 37144454 DOI: 10.1002/asia.202300360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This Special Collection highlights the latest developments in the field of gel electrolytes. In this Editorial, guest editors Haitao Zhang, Du Yuan, Jin Zhao, Xiaoyan Ji, and Yi-Zhou Zhang briefly introduced the research focusing on chemistry and applications of gel electrolytes in this special collection.
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Affiliation(s)
- Haitao Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, P. R. China
| | - Jin Zhao
- Key Laboratory for Organic Electronics and Information Displays (KLOEID) & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Xiaoyan Ji
- Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå, 97187, Sweden
| | - Yi-Zhou Zhang
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
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Yuan D, Li Y, She Q, Zhu X. Lignin-derived dual-doped carbon nanocomposites as low-cost electrocatalysts. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Yuan D, Li X, Yao H, Li Y, Zhu X, Zhao J, Zhang H, Zhang Y, Jie ETJ, Cai Y, Srinivasan M. A Liquid Crystal Ionomer-Type Electrolyte toward Ordering-Induced Regulation for Highly Reversible Zinc Ion Battery. Adv Sci (Weinh) 2023; 10:e2206469. [PMID: 36646504 PMCID: PMC10015864 DOI: 10.1002/advs.202206469] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Novel electrolyte is being pursued toward exploring Zn chemistry in zinc ion batteries. Here, a fluorine-free liquid crystal (LC) ionomer-type zinc electrolyte is presented, achieving simultaneous regulated water activity and long-range ordering of conduction channels and SEI. Distinct from water network or local ordering in current advances, long-range ordering of layered water channels is realized. Via manipulating water activity, conductivities range from ≈0.34 to 15 mS cm-1 , and electrochemical window can be tuned from ≈2.3-4.3 V. The Zn|Zn symmetric cell with LC gel exhibits highly reversible Zn stripping/plating at 5 mA cm-2 and 5 mAh cm-2 for 800 h, with retained ordering of water channels. The capability of gel for inducing in situ formation of long-range ordered layer SEI associated with alkylbenzene sulfonate anion is uncovered. V2 O5 /Zn cell with the gel shows much improved cycling stability comparing to conventional zinc electrolytes, where the preserved structure of V2 O5 is associated with the efficiently stabilized Zn anode by the gel. Via long-range ordering-induced regulation on ion transport, electrochemical stability, and interfacial reaction, the development of LC electrolyte provides a pathway toward advancing aqueous rechargeable batteries.
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Affiliation(s)
- Du Yuan
- College of Materials Science and EngineeringChangsha University of Science and TechnologyChangshaHunan410004P. R. China
| | - Xin Li
- College of Materials Science and EngineeringChangsha University of Science and TechnologyChangshaHunan410004P. R. China
| | - Hong Yao
- College of Materials Science and EngineeringChangsha University of Science and TechnologyChangshaHunan410004P. R. China
| | - Yuhang Li
- College of Materials Science and EngineeringChangsha University of Science and TechnologyChangshaHunan410004P. R. China
| | - Xiaobo Zhu
- College of Materials Science and EngineeringChangsha University of Science and TechnologyChangshaHunan410004P. R. China
| | - Jin Zhao
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)Nanjing University of Posts & Telecommunications9 Wenyuan RoadNanjing210023China
| | - Haitao Zhang
- Institute of Process EngineeringChinese Academy of SciencesBeijing100190China
| | - Yizhou Zhang
- School of Chemistry and Materials ScienceInstitute of Advanced Materials and Flexible Electronics (IAMFE)Nanjing University of Information Science and TechnologyNanjing210044China
| | - Ernest Tang Jun Jie
- School of Materials Science and EngineeringNanyang Technological UniversityBlock N4.150 Nanyang AvenueSingapore639798Singapore
| | - Yi Cai
- School of Materials Science and EngineeringNanyang Technological UniversityBlock N4.150 Nanyang AvenueSingapore639798Singapore
| | - Madhavi Srinivasan
- School of Materials Science and EngineeringNanyang Technological UniversityBlock N4.150 Nanyang AvenueSingapore639798Singapore
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Liu X, Li X, Yang X, Lu J, Zhang X, Yuan D, Zhang Y. Influence of Water on Gel Electrolytes for Zinc-Ion Batteries. Chem Asian J 2023; 18:e202201280. [PMID: 36632721 DOI: 10.1002/asia.202201280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/13/2023]
Abstract
Gel electrolytes are being intensively explored for aqueous rechargeable zinc-ion batteries, especially towards high performance and multi-functionalities. Water plays a central role on the fundamental properties, interface reaction/interaction, and performance of the gel-type zinc electrolyte. In this review, the influence of water on the physiochemical properties of gel electrolytes is focused on. The correlation between water activity and the fundamental properties of zinc electrolytes is presented. Current approaches and challenges in manipulating water activity and the consequent influence on the electrochemical stability, transport, and interface kinetics of gel electrolytes are summarized. An outlook on approaches to tuning and investigating water activity is provided to shed light on the design of advanced gel electrolytes.
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Affiliation(s)
- Xiangjie Liu
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Xin Li
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Xiaotong Yang
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Jingqi Lu
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
| | - Xuan Zhang
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Yizhou Zhang
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
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11
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Wang X, Wang L, Wu D, Yuan D, Ge H, Wu X. PbO 2 materials for electrochemical environmental engineering: A review on synthesis and applications. Sci Total Environ 2023; 855:158880. [PMID: 36130629 DOI: 10.1016/j.scitotenv.2022.158880] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/21/2022] [Accepted: 09/16/2022] [Indexed: 06/15/2023]
Abstract
Lead dioxide (PbO2) materials have been widely employed in various fields such as batteries, electrochemical engineering, and more recently environmental engineering as anode materials, due to their unique physicochemical properties. Key performances of PbO2 electrodes, such as energy efficiency and space-time yield, are influenced by morphological as well as compositional factors. Micro-nano structure regulation and decoration of metal/non-metal on PbO2 is an outstanding technique to revamp its electrocatalytic activities and enhance environmental engineering efficiency. The aim of this review is to comprehensively summarize the recent research progress in the morphology control, the structure constructions, and the element doping of PbO2 materials, further with many environmental application cases evaluated. Concerning electrochemical environmental engineering, the lead dioxide employed in chemical oxygen demand detection, ozone generators, and wastewater treatment has been comprehensively reviewed. In addition, the future research perspectives, challenges and the opportunities on PbO2 materials for environmental applications are proposed.
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Affiliation(s)
- Xi Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Luyang Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dandan Wu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Du Yuan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hang Ge
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xu Wu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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12
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Ou CX, Wu PH, Xie JX, Zhang XX, Ma JJ, Deng ZA, Yang XJ, Li Y, Yuan D, Xue LN, Dong C, Deng ZN, Zhang QL. [Efficacy of omalizumab in the treatment of eosinophilic granulomatous polyangiitis with asthma as the first symptom]. Zhonghua Yi Xue Za Zhi 2022; 102:2684-2689. [PMID: 36096695 DOI: 10.3760/cma.j.cn112137-20220327-00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the efficacy, and safety of omalizumab in the treatment of eosinophilic granulomatous with polyangiitis (EGPA) with asthma as the first symptom. Method: The clinical characteristics of 22 EGPA patients with asthma as the first symptom treated with omalizumab in the First Affiliated Hospital of Guangzhou Medical University from March 2018 to December 2020 were retrospectively analyzed. The asthma control test (ACT) score, the frequency of asthma exacerbation (AE), the Birmingham Vasculitis Activity Score (BVAS), the variation rate of peak expiratory flow (PEF), the percentage of PEF to predicted value of PEF (PEFpred%), the percentage of forced expiratory volume in first second (FEV1) to predicted value of FEV1 (FEV1pred%), the dosage of oral corticosteroid (OCS) and other clinical data [M(Q1, Q3)] were collected before and after treatment, to observe the efficacy and adverse reactions of omalizumab. Results: There were 22 subjects recruited in this study. The median age was 42 (22-70) years. Eleven of the patients were males. After treated with omalizumab for 4 months, there were 68.2%(15/21) of patients who responded to the treatment. In the response group (n=15), the patients' ACT score increased from 19.0 (16.5, 21.0) to 23.0 (21.5, 24.0) (P=0.001). The frequency of AE decreased from 0.7 (0.3, 1.0) to 0 (0, 0.7) per four mouths (P<0.001). The BVAS decreased from 4.0 (2.0, 6.0) to 2.0 (2.0, 4.0) (P=0.007). The variation rate of PEF decreased from 18.8% (14.0%, 27.7%) to 9.2% (6.8%, 11.9%) (P=0.007). The PEFpred% increased from 80.8% (73.5%, 90.7%) to 100.5% (79.4%, 114.0%) (P=0.005). The maintenance dosage of OCS reduced from 15.0 (10.0, 20.0) mg/d to 8.8 (5.0, 10.0) mg/d (P=0.005). The level of baseline eosinophil in peripheral blood of patients in non-response group was higher than that in response group [11.4% (9.2%, 22.6%) vs 3.4% (1.1%, 6.5%), P<0.05]. A total of 190 injections were performed in 22 patients, and only 4 patients (2.1%) had adverse reactions after a single injection of omalizumab, such as dizziness, swelling of injection site and pruritus. The adverse reactions were tolerable. Conclusions: Omalizumab has certain curative effect on EGPA, can reduce asthmatic symptoms and OCS maintenance dosage, and has a good safety profile. The rate of response to the treatment is higher in patients with mild eosinophilic inflammation.
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Affiliation(s)
- C X Ou
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - P H Wu
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J X Xie
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X X Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J J Ma
- Department of Pediatric Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China
| | - Z A Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X J Yang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y Li
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - D Yuan
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L N Xue
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C Dong
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z N Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Q L Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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13
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Zhong X, Yuan D, Liu Y, Wu X, Li N, Li YP, He J, Liao RP, Yang Y, Liang S. [Analysis of the characteristics of HIV-1 molecular transmission network among people aged 50 years and above in Pengzhou city of Sichuan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1107-1111. [PMID: 35856207 DOI: 10.3760/cma.j.cn112338-20220123-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To describe the characteristics of molecular transmission network of newly diagnosed HIV-1 infected patients, analyze their risk factors related to network access and provide a scientific basis for precise prevention of HIV infection. Methods: For 340 blood samples collected from confirmed HIV-1 infection cases aged ≥50 years in Pengzhou city of Sichuan province from April 2019 to August 2021, nested PCR amplification was used to amplify, clean up and splice clips the pol gene region. The phylogenetic tree was constructed by multi-sequence comparison to distinguish subtypes, and the pairwise genetic distance was calculated. When the genetic distance threshold was 0.90%, the number of clusters was the largest (41), and the molecular transmission network was constructed.The χ2 test and logistic regression analysis were performed.The software SPSS 19.0 was used for statistical analysis. Results: A total of 340 samples were successfully amplified (97.06%, 330/340) in 330 samples. 6 HIV-1 subtypes identified, including:CRF01_AE(56.67%,187/330), CRF07_BC(27.88%,92/330), B(11.21%,37/330), CRF08_BC(3.33%,11/330), CRF55_01B(0.61%,2/330) and C(0.30%,1/330).The network entry rate was 58.79% (194/330).The results of logistic regression analysis of the risk factors of HIV-1 molecular transmission network in the research subjects showed that compared with illiteracy, junior high school (OR=0.35, 95%CI:0.13-0.97) and high school/technical secondary school (OR=0.14, 95%CI: 0.02-0.97) had lower possibility of network entry. Compared with farmers, unknown occupations (OR=0.40,95%CI: 0.17-0.95) are less likely to enter the network .Compared with CRF01_AE, CRF07_BC (OR=0.20, 95%CI: 0.11-0.35) and CRF08_BC subtype (OR=0.09, 95%CI: 0.02-0.45) were less likely to enter the network. Conclusions: The sources of AIDS transmission among middle-aged and elderly people of rural areas are diversified in Pengzhou city of Sichuan province. AIDS intervention should focus on middle-aged and elderly farmers with low educational level, and strengthen detection and traceability investigation.
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Affiliation(s)
- X Zhong
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - D Yuan
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Liu
- Chengdu Municipal Center for Disease Control and Prevention, Chengdu 610041, China
| | - X Wu
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - N Li
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - Y P Li
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - J He
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - R P Liao
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - Y Yang
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - Shu Liang
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
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14
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Wang P, Yuan D, Yuan J. High fibrinogen-to-albumin ratio with type 2 diabetes mellitus is associated with poor prognosis in patients undergoing percutaneous coronary intervention: 5-year findings from a large cohort. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public hospital(s). Main funding source(s): the National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences
Background
Inflammation plays a crucial role in coronary atherosclerosis progression, and growing evidence has demonstrated that the fibrinogen-to-albumin ratio index (FAR) is associated with the severity of coronary artery disease (CAD). However, the long-term risk of cardiovascular events remains indistinct in patients with different level of FAR and different glycemic metabolism status. This study was to access 5-year clinical outcomes of diabetic and non-diabetic patients who underwent percutaneous coronary intervention (PCI) with different level of FAR.
Methods
We consecutively enrolled 10,724 patients with CAD hospitalized for PCI and followed up for major adverse cardiac and cerebrovascular events (MACCE) covering all-cause mortality, non-fatal myocardial infarction, non-fatal ischemic stroke and unplanned coronary revascularization. FAR was computed using the following formula: Fibrinogen (mg/dL) / Albumin (g/L). According to the optimal cut-off value of FAR, which was determined by the surv_cutpoint function of the R package survminer via RStudio software (version 2021.09.0), patients were divided into higher level of FAR (FAR-H) and lower level of (FAR-L) subgroups, and were further categorized into for groups as FAR-H with DM and non-DM, and FAR-L with DM and non-DM.
Results
5,298 patients (58.36 ± 10.36 years, 77.7% male) were ultimately enrolled in the present study. A total of 1,099 (20.7%) MACCEs were documented during the 5-year follow-up. The optimal cut-off value of FAR was 0.0783 by the surv_cutpoint function. Compared to ones with FAR-H and DM, patients with FAR-L and non-DM, FAR-H and non-DM, FAR-L and DM had decreased risk of MACCEs [adjusted hazard ratio (HR): 0.75, 95% confidence interval (CI) 0.64-0.89, p = 0.001; HR: 0.006, 95% CI 0.66-0.93, p = 0.006; HR: 0.81, 95% CI 0.68-0.97, p = 0.019]. Notably, non-diabetic patients with lower level of FAR also had lower all-cause mortality risk than those in the FAR-H/DM group (HR: 0.41, 95% CI 0.27-0.63, p < 0.001). Multivariate Cox proportional hazards regression analysis also indicated the highest risk of MACCEs in patients with FAR-H and DM than others (p for trend = 0.005). In addition, subgroup analysis revealed consistent effects on 5-year MACCE across various subgroups.
Conclusion
Diabetic patients with higher level of FAR had the worse 5-year outcomes compared with patients in other three groups. The level of FAR may help to identify high-risk individuals in this specific population.
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Affiliation(s)
- P Wang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - D Yuan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - J Yuan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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Wu P, Zhou LN, Xing Y, Sun HP, Wan LJ, Zhou CY, Zhang DD, Zhou XF, Zhang H, Chen MY, Wang YF, Wang NN, Liu WJ, Xu TL, Fu YW, Liu LJ, Yuan D, Chen M, Wang H. [Establishment of morphological reference values for the differential count of white blood cells in peripheral blood smear, as well as nucleated cells and megakaryocytes in bone marrow smear]. Zhonghua Yi Xue Za Zhi 2022; 102:506-512. [PMID: 35184504 DOI: 10.3760/cma.j.cn112137-20210819-01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish the morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear. Methods: From April 2012 to June 2020, 4 221 healthy donors for hematopoietic stem cell transplantation in Hebei Yanda Lu Daopei Hospital were selected. The median age was 36 (3-72) years old, including 2 520 males and 1 701 females. They were divided into four groups according to age: children group, with age≤14 years old [n=334, 11 (3-14) years old], youth group, with age >14 years old and <45 years old [n=2 855, 33 (15-44) years old], middle-aged adult group, with age ≥45 years old and < 60 years old [n=929, 49 (45-59) years old], and older adult group, with age ≥60 years old [n=103, 62 (60-72) years old]. Gender subgroups were established in each age group. According to different hematopoietic characteristics, the children group were divided into two subgroups: children group 1 [n=48, 6 (3-7) years old] and children group 2 [n=286, 11 (8-14) years old]. According to the clinical routine, 100 white blood cells in peripheral blood, 200 nucleated cells in bone marrow, and cell numbers/4.5 cm2 for megakaryocytes were classified and counted. The results of cell count in different age and gender groups were compared, and the reference values of morphological classification were established for different groups with statistical or clinical significance. Results: Due to the existence of statistically significant differences between children and adult groups and different gender subgroups in adults (all P<0.05), the reference values were established for children group and adult gender subgroups. The counts of segmented neutrophils and lymphocytes in peripheral blood were 46.65(43.97-49.32)% and 44.00(10.60-65.10)% in children group 1, 50.73(49.50-51.96)% and 39.55 (38.36-40.74)% in children group 2, and 57.00 (39.00-75.23) % and 33.00 (17.00-52.00) % in adult group, respectively. Bone marrow segmented neutrophils, orthochromatic erythroblasts, and mature lymphocytes were 11.54 (10.68-12.41)%, 14.20 (13.19-15.21)%, and 23.99 (22.06-25.92)% in children group 1, 12.50 (7.00-21.50)%, 15.00(9.50-25.50)%, and 21.02 (20.24-21.81)% in children group 2, 13.50 (7.50-21.00)%, 16.50 (10.50-26.00)%, and 15.50 (7.50-26.00)% in adult male group, and 14.50 (8.00-24.50)%, 14.50 (9.00-23.00)%, and 17.50 (8.50-29.00)% in adult female group, respectively. The myelopoiesis/erythropoiesis ratio in children group, adult male group and adult female group was 1.86∶1 (1.14∶1-3.23∶1), 1.96∶1 (1.12∶1-3.19∶1), 2.22∶1 (1.30∶1-3.69∶1), respectively. The numbers of granular megakaryocytes and thromocytogenic megakaryocytes were 138 (25-567) cells/4.5cm2 and 86 (13-328) cells/4.5 cm2 in children group, and 92 (13-338) cells/4.5 cm2 and 38 (3-162) cells/4.5 cm2 in adult group, respectively. Conclusion: The morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear are successfully established, which is helpful to improve the application of morphological examination in disease screening, diagnosis and monitoring.
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Affiliation(s)
- P Wu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L N Zhou
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - Y Xing
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - H P Sun
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Wan
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - C Y Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D D Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - X F Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - M Y Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y F Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - N N Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - W J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - T L Xu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y W Fu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D Yuan
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - M Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
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Han M, Wang J, Zhao J, Ma Y, Huang B, Yuan D. Systematic Review and Meta-analysis of Outcomes following Endovascular and Open Repair for Infective Native Aortic Aneurysms. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Long Y, Xu Z, Wang G, Xu H, Yang M, Ding M, Yuan D, Yan C, Sun Q, Liu M, Jia C. A neutral polysulfide/ferricyanide redox flow battery. iScience 2021; 24:103157. [PMID: 34646992 PMCID: PMC8497995 DOI: 10.1016/j.isci.2021.103157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/08/2021] [Accepted: 09/17/2021] [Indexed: 12/19/2022] Open
Abstract
Energy storage systems are crucial in the deployment of renewable energies. As one of the most promising solutions, redox flow batteries (RFBs) are still hindered for practical applications by low energy density, high cost, and environmental concerns. To breakthrough the fundamental solubility limit that restricts boosting energy density of the cell, we here demonstrate a new RFB system employing polysulfide and high concentrated ferricyanide (up to 1.6 M) species as reactants. The RFB cell exhibits high cell performances with capacity retention of 96.9% after 1,500 cycles and low reactant cost of $32.47/kWh. Moreover, neutral aqueous electrolytes are environmentally benign and cost-effective. A cell stack is assembled and exhibits low capacity fade rate of 0.021% per cycle over 642 charging-discharging steps (spans 60 days). This neutral polysulfide/ferricyanide RFB technology with high safety, long-duration, low cost, and feasibility of scale-up is an innovative design for storing massive energy.
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Affiliation(s)
- Yong Long
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Zhizhao Xu
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Guixiang Wang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - He Xu
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Minghui Yang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Mei Ding
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China.,National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
| | - Chuanwei Yan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Qijun Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Liu
- Institute of Super-microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, Changsha 410083, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410114, China
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18
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Yang CX, Zhao XH, Li YY, Zhou YF, Zhang LA, Yuan D, Xia W, Wang JM, Song JD, Lyu W, Luo YF, Jiang LF, Jiang L, Huang XC, Hu XY, Dong XJ, Cheng TY, Zhou YZ, Zhang Y, Che Y. [Incidence of unintended pregnancy within 2 years after delivery and its influencing factors in China]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:616-621. [PMID: 34547862 DOI: 10.3760/cma.j.cn112141-20210611-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China. Methods: Participants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women's socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis. Results: A total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95%CI: 4.5%-6.1%) and 13.1% (95%CI: 11.3%-14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (all P>0.05). Conclusions: In China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.
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Affiliation(s)
- C X Yang
- Department of Obstetrics, Tianjin Baodi Hospital, Tianjin 301800, China
| | - X H Zhao
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Y Li
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y F Zhou
- Center for Maternal Health Care, Changsha Hosptial for Maternal and Child Health Care, Changsha 410007, China
| | - L A Zhang
- Department of Family Planning, Women Health Center of Shanxi, Taiyuan 030013, China
| | - D Yuan
- Department of Obstetrics and Gynecology, Tianjin Hedong District Obstetrics and Gynecology Hospital, Tianjin 300042, China
| | - W Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J M Wang
- Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - J D Song
- Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - W Lyu
- Department of Gynecology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Y F Luo
- Department of Reproductive Gynecology, Jilin Province Maternal and Child Health Hospital, Changchun 130051, China
| | - L F Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - L Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - X C Huang
- Department of Gynecology, Fujian Maternity and Children Health Hospital, Fuzhou 350001, China
| | - X Y Hu
- Department of Maternity Care, Shanghai Center for Women and Children's Health, Shanghai 200062, China
| | - X J Dong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Y Cheng
- Department of Maternal Health Care, Maternal and Child Health Care Hospital of Urumqi, Urumqi 830000, China
| | - Y Z Zhou
- Department of Health Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563006, China
| | - Y Zhang
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Che
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
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Li Y, Xia M, Peng L, Liu H, Chen G, Wang C, Yuan D, Liu Y, Liu H. Downregulation of miR‑214-3p attenuates mesangial hypercellularity by targeting PTEN‑mediated JNK/c-Jun signaling in IgA nephropathy. Int J Biol Sci 2021; 17:3343-3355. [PMID: 34512151 PMCID: PMC8416718 DOI: 10.7150/ijbs.61274] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 07/21/2021] [Indexed: 01/05/2023] Open
Abstract
Mesangial cell (MC) proliferation and matrix expansion are basic pathological characteristics of IgA nephropathy (IgAN). However, the stepwise mechanism of MC proliferation and the exact set of related signaling molecules remain largely unclear. In this study, we found a significant upregulation of miR-214-3p in the renal cortex of IgAN mice by miRNA sequencing. In situ hybridization analysis showed that miR-214-3p expression was obviously elevated in MCs in the renal cortex in IgAN. Functionally, knockdown of miR-214-3p alleviated mesangial hypercellularity and renal lesions in IgAN mice. In vitro, the inhibition of miR-214-3p suppressed MC proliferation and arrested G1-S cell cycle pSrogression in IgAN. Mechanistically, a luciferase reporter assay verified PTEN as a direct target of miR-214-3p. Downregulation of miR-214-3p increased PTEN expression and reduced p-JNK and p-c-Jun levels, thereby inhibiting MC proliferation and ameliorating renal lesions in IgAN. Moreover, these changes could be attenuated by co-transfection with PTEN siRNA. Collectively, these results illustrated that miR-214-3p accelerated MC proliferation in IgAN by directly targeting PTEN to modulate JNK/c-Jun signaling. Therefore, miR-214-3p may represent a novel therapeutic target for IgAN.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, Changsha, Hunan, China
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Zhou C, Liang S, Li YP, Yang Y, Liao LJ, Xing H, Ruan YH, Yuan D. [Influencing factors on the death of HIV/AIDS patients treated with antiviral treatment in Butuo county, Liangshan Yi Autonomous Prefecture, 2010-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:886-890. [PMID: 34814483 DOI: 10.3760/cma.j.cn112338-20200902-01115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To understand influencing factors on the deaths of HIV/AIDS patients receiving antireviral treatment in Butuo county of Liangshan Yi Autonomous Prefecture (Liangshan) from 2010 to 2019, to provide data for drug replacement and sustainable antiviral treatment strategy. Methods: A matched case-control study was used to collect basic and follow-up information on AIDS death patients receiving antiviral treatment in Butuo county of Liangshan from 2010 to 2019. The control group was formed by sampling twice the number of cases. The logistic regression model was used to analyze the risk factors affecting mortality. Results: In 3 355 patients of HIV/AIDS treated with antiviral therapy, 1 179 cases in the death group and 2 176 cases in the control group. Including 81.34% were 30-49 years old, 69.09%males, 99.55% Yi nationality, 91.12% were married or cohabitated, 95.77% had junior high school education or below, and 88.41% peasants. Amultivariate logistic stepwise regression model showed that among the death risk factors, age ≥50 years old was 5.08 times (95%CI:3.05-8.48) that of the 18-29, female was 0.70 times (95%CI: 0.52-0.94) than male, the transmission rate of intravenous drug use was 1.43 times (95%CI: 1.06-1.91) that of heterosexual transmission, CD4+T lymphocyte (CD4) count ≥350 cells/μl before treatment was 0.38 times (95%CI: 0.30-0.48) that of CD4 <200 cells/μl before treatment, the most recent antiviral treatment regimen containing LPV/r was 0.04 times (95%CI: 0.01-0.18) than that of stavudine (d4T) + lamivudine (3TC) + nevirapine (NVP)/efavirenz (EFV) regimen, drug resistance was 3.40 times (95%CI: 2.13-5.42) of non-drug resistance, non-viral load and non-drug resistance test results were 12.98 times (95%CI: 10.28-16.40) of non-drug resistance. Conclusions: Age, gender, transmission route, CD4 before treatment, the latest antiviral treatment program, and drug resistance test after antiviral therapy were the influencing factors of HIV/AIDS death in Butuo county. It is necessary to expand the coverage of viral load and drug resistance test to change the antiviral therapeutic schedule scientifically and carry out publicity and education on the compliance of patients with antiviral treatment and medical staff training in order to reduce the mortality of patients with antiviral treatment.
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Affiliation(s)
- C Zhou
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - S Liang
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - Y P Li
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - Y Yang
- Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - L J Liao
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H Xing
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y H Ruan
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D Yuan
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
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Wang J, Wang T, Zhao J, Ma Y, Huang B, Yang Y, Yuan D. Comparison of Clinical Outcomes Following One versus Two Stage Hybrid Repair of Thoraco-Abdominal Aortic Aneurysms: A Comprehensive Meta-Analysis. J Vasc Surg 2021. [DOI: 10.1016/j.jvs.2021.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Yuan D, Zhao J, Ren H, Chen Y, Chua R, Jie ETJ, Cai Y, Edison E, Manalastas W, Wong MW, Srinivasan M. Anion Texturing Towards Dendrite‐Free Zn Anode for Aqueous Rechargeable Batteries. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015488] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Du Yuan
- College of Materials Science and Engineering Changsha University of Science and Technology Changsha Hunan 410004 P. R. China
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Jin Zhao
- Jiangsu Key Lab for Organic Electronics and Information Displays & Institute of Advanced Material School of Materials Science and Engineering Nanjing University of Posts and Telecommunications Nanjing 210023 China
| | - Hao Ren
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Yingqian Chen
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Rodney Chua
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Ernest Tang Jun Jie
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Yi Cai
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Eldho Edison
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - William Manalastas
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
| | - Ming Wah Wong
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Madhavi Srinivasan
- School of Materials Science and Engineering Nanyang Technological University Block N4.1, 50 Nanyang Avenue Singapore 639798 Singapore
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23
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Yuan D, Zhao J, Ren H, Chen Y, Chua R, Jie ETJ, Cai Y, Edison E, Manalastas W, Wong MW, Srinivasan M. Anion Texturing Towards Dendrite-Free Zn Anode for Aqueous Rechargeable Batteries. Angew Chem Int Ed Engl 2021; 60:7213-7219. [PMID: 33381887 DOI: 10.1002/anie.202015488] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/24/2020] [Indexed: 11/10/2022]
Abstract
The reversibility of metal anode is a fundamental challenge to the lifetime of rechargeable batteries. Though being widely employed in aqueous energy storage systems, metallic zinc suffers from dendrite formation that severely hinders its applications. Here we report texturing Zn as an effective way to address the issue of zinc dendrite. An in-plane oriented Zn texture with preferentially exposed (002) basal plane is demonstrated via a sulfonate anion-induced electrodeposition, noting no solid report on (002) textured Zn till now. Anion-induced reconstruction of zinc coordination is revealed to be responsible for the texture formation. Benchmarking against its (101) textured-counterpart by the conventional sulphate-based electrolyte, the Zn (002) texture enables highly reversible stripping/plating at a high current density of 10 mA cm-2 , showing its dendrite-free characteristics. The Zn (002) texture-based aqueous zinc battery exhibits excellent cycling stability. The developed anion texturing approach provides a pathway towards exploring zinc chemistry and prospering aqueous rechargeable batteries.
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Affiliation(s)
- Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, P. R. China.,School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Jin Zhao
- Jiangsu Key Lab for Organic Electronics and Information, Displays & Institute of Advanced Material, School of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Hao Ren
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yingqian Chen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Rodney Chua
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ernest Tang Jun Jie
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yi Cai
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Eldho Edison
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - William Manalastas
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Madhavi Srinivasan
- School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore, 639798, Singapore
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24
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Yuan D, Chen G, Jia C, Zhang H. Editorial: Deep Eutectic Solvents/Complex Salts-Based Electrolyte for Next Generation Rechargeable Batteries. Front Chem 2020; 8:613353. [PMID: 33324618 PMCID: PMC7726348 DOI: 10.3389/fchem.2020.613353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 10/22/2020] [Indexed: 11/20/2022] Open
Affiliation(s)
- Du Yuan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Gen Chen
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Chuankun Jia
- School of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Haitao Zhang
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
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25
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Zhu J, Zhang J, Xia H, Ge J, Ye X, Guo B, Liu M, Dai L, Zhang L, Chen L, Wang Y, Wang X, Liu H, Chen C, Wang Y, Wang G, Cai M, Yang X, Li F, Fan C, Ruan Y, Yu L, Zhang R, Xu H, Zhang J, Ma X, Yuan D, Zhu Y, Wang D, Betran AP, Qi H, Duan T, Zhang J. Stillbirths in China: a nationwide survey. BJOG 2020; 128:67-76. [PMID: 32770714 PMCID: PMC7754392 DOI: 10.1111/1471-0528.16458] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
Abstract
Objective To estimate a stillbirth rate at 24 or more gestational weeks in 2015–2016 and to explore potentially preventable causes in China. Design A multi‐centre cross‐sectional study. Setting Ninety‐six hospitals distributed in 24 (of 34) provinces in China. Population A total of 75 132 births at 24 completed weeks of gestation or more. Methods COX Proportional Hazard Models were performed to examine risk factors for antepartum and intrapartum stillbirths. Population attributable risk percentage was calculated for major risk factors. Correspondence analysis was used to explore region‐specific risk factors for stillbirths. Main outcome measures Stillbirth rate and risk factors for stillbirth. Results A total of 75 132 births including 949 stillbirths were used for the final analysis, giving a weighted stillbirth rate of 13.2 per 1000 births (95% CI 7.9–18.5). Small for gestational age (SGA) and pre‐eclampsia/eclampsia increased antepartum stillbirths by 26.2% and 11.7%, respectively. Fetal anomalies increased antepartum and intrapartum stillbirths by 17.9% and 7.4%, respectively. Overall, 31.4% of all stillbirths were potentially preventable. Advanced maternal age, pre‐pregnant obesity, chronic hypertension and diabetes mellitus were important risk factors in East China; low education and SGA were major risk factors in Northwest, Southwest, Northeast and South China; and pre‐eclampsia/eclampsia and intrapartum complications were significant risk factors in Central China. Conclusions The prevalence of stillbirth was 13.2 per 1000 births in China in 2015–2016. Nearly one‐third of all stillbirths may be preventable. Strategies based on regional characteristics should be considered to reduce further the burden of stillbirths in China. Tweetable abstract The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable. The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable.
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Affiliation(s)
- J Zhu
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Obstetrics and Gynecology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Xia
- Department of Obstetrics, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - J Ge
- Department of Obstetrics, Shijiazhuang Obstetrics and Gynecology Hospital, Hebei, China
| | - X Ye
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - B Guo
- Department of Obstetrics, The Maternal and Child Health Hospital of Dongchangfu District, Shangdong, China
| | - M Liu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - L Dai
- Department of Obstetrics, The Maternal and Child Healthcare Hospital of Xiangtan, Hunan, China
| | - L Zhang
- Department of Obstetrics, Qihetai Maternal and Child Health Hospital, Heilongjiang, China
| | - L Chen
- Department of Obstetrics, Fujian Provincial Maternity and Children's Hospital, Fujian, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, Nanjing University Medical School, Jiangsu, China
| | - X Wang
- Department of Obstetrics and Gynecology, Traditional Chinese Medicine Integrated Hospital of Tongzhou District, Beijing, China
| | - H Liu
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an Jiao Tong University, Shaanxi, China
| | - C Chen
- Department of Obstetrics, Maternity and Child Care Center of Xingyang, Henan, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Wenzhou People's Hospital, Wenzhou Maternal and Child Health Care Hospital, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - G Wang
- Department of Obstetrics, Inner Mongolia Maternity and Child Health Care Hospital, Hohhot, Inner Mongolia Autonomous Region, China
| | - M Cai
- Department of Obstetrics, Changsha Hospital for Maternal and Child Health Care, Hunan, China
| | - X Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - F Li
- Department of Obstetrics, Haidian Maternal and Child Health Hospital, Beijing, China
| | - C Fan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Hubei, China
| | - Y Ruan
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - L Yu
- Department of Obstetrics and Gynecology, Jinhua People's Hospital, Zhejiang, China
| | - R Zhang
- Department of Obstetrics and Gynecology, Wenling Maternal and Child Health Hospital, Zhejiang, China
| | - H Xu
- Department of Obstetrics, Shaoxing Maternal and Child Health Hospital, Zhejiang, China
| | - J Zhang
- Department of Obstetrics and Gynecology, The Fifth Hospital of Xiamen, Fujian, China
| | - X Ma
- Department of Obstetrics, Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - D Yuan
- Department of Obstetrics, Gaizhou Maternal and Child Health Hospital, Liaoning, China
| | - Y Zhu
- Department of Obstetrics and Gynecology, Jiangyin People's Hospital, Southeast University School of Medicine, Jiangsu, China
| | - D Wang
- Department of Obstetrics and Gynecology, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - A P Betran
- UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
| | - H Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - T Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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26
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Xia L, Long T, Li W, Zhong F, Ding M, Long Y, Xu Z, Lei Y, Guan Y, Yuan D, Zhang Y, Jia C, Sun L, Sun Q. Highly Stable Vanadium Redox-Flow Battery Assisted by Redox-Mediated Catalysis. Small 2020; 16:e2003321. [PMID: 32812393 DOI: 10.1002/smll.202003321] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/04/2020] [Indexed: 05/21/2023]
Abstract
With good operation flexibility and scalability, vanadium redox-flow batteries (VRBs) stand out from various electrochemical energy storage (EES) technologies. However, traditional electrodes in VRBs, such as carbon and graphite felt with low electrochemical activities, impede the interfacial charge transfer processes and generate considerable overpotential loss, which significantly decrease the energy and voltage efficiencies of VRBs. Herein, by using a facile electrodeposition technique, Prussian blue/carbon felt (PB/CF) composite electrodes with high electrochemical activity for VRBs are successfully fabricated. The PB/CF electrode exhibits excellent electrochemical activity toward VO2+ /VO2 + redox couple in VRB with an average cell voltage efficiency (VE) of 90% and an energy efficiency (EE) of 88% at 100 mA cm-2 . In addition, due to the uniformly distributed PB particles that are strongly bound to the surface of carbon fibers in CF, VRBs with the PB/CF electrodes show much better long-term stabilities compared with the pristine CF-based battery due to the redox-mediated catalysis. A VRB stack consisting of three single cells (16 cm2 ) is also constructed to assess the reliability of the redox-mediated PB/CF electrodes for large-scale application. The facile technique for the high-performance electrode with redox-mediated reaction is expected to shed new light on commercial electrode design for VRBs.
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Affiliation(s)
- Lu Xia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
- State Key Laboratory of Mechanical Transmission, School of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China
| | - Ting Long
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Wenyue Li
- Department of Electrical and Computer Engineering, Nano Tech Center, Texas Tech University, Lubbock, TX, 79409, USA
| | - Fangfang Zhong
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Mei Ding
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Yong Long
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Zhizhao Xu
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Yanqiang Lei
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Guan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Du Yuan
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
| | - Yiqiong Zhang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Lidong Sun
- State Key Laboratory of Mechanical Transmission, School of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China
| | - Qijun Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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Yuan D, Zhao J, Manalastas W, Kumar S, Srinivasan M. Emerging rechargeable aqueous aluminum ion battery: Status, challenges, and outlooks. Nano Materials Science 2020. [DOI: 10.1016/j.nanoms.2019.11.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cai Y, Chua R, Kou Z, Ren H, Yuan D, Huang S, Kumar S, Verma V, Amonpattaratkit P, Srinivasan M. Boosting Zn-Ion Storage Performance of Bronze-Type VO 2 via Ni-Mediated Electronic Structure Engineering. ACS Appl Mater Interfaces 2020; 12:36110-36118. [PMID: 32701255 DOI: 10.1021/acsami.0c09061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aqueous rechargeable zinc-ion batteries are emerging as attractive alternatives for post-lithium-ion batteries. However, their electrochemical performances are restricted by the narrow working window of materials in aqueous electrolytes. Herein, a Ni-mediated VO2-B nanobelt [(Ni)VO2] has been designed to optimize the intrinsic electronic structure of VO2-B and thus achieve much more enhanced zinc-ion storage. Specifically, the Zn/(Ni)VO2 battery yields a good rate capability (182.0 mA h g-1 at 5 A g-1) with a superior cycling stability (130.6 mA h g-1 at 10 A g-1 after 2000 cycles). Experimental and theoretical methods reveal that the introduction of Ni2+ in the VO2 tunnel structure can effectively provide high surface reactivity and improve the intrinsic electronic configurations, thus resulting in good kinetics. Furthermore, H+ and Zn2+ cointercalation processes are determined via in situ X-ray diffraction and supported by ex situ characterizations. Additionally, quasi-solid-state Zn/(Ni)VO2 soft-packaged batteries are assembled and provide flexibility in battery design for practical applications. The results provide insights into the interrelationships between the intrinsic electronic structure of the cathode and the overall electrochemical performance.
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Affiliation(s)
- Yi Cai
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
| | - Rodney Chua
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
| | - Zongkui Kou
- Department of Materials Science and Engineering, National University of Singapore, Engineering Drive 1, 117574, Singapore
| | - Hao Ren
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
| | - Du Yuan
- Energy Research Institute, 50 Nanyang Drive, X-Frontiers Block, Level 5, Singapore 637553, Singapore
| | - Shaozhuan Huang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South Central University for Nationalities, Wuhan 430074, China
| | - Sonal Kumar
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
| | - Vivek Verma
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
| | | | - Madhavi Srinivasan
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Avenue, 639977, Singapore
- Energy Research Institute at Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, 637553, Singapore
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Lou X, Yuan D, Yu Y, Lei Y, Ding M, Sun Q, Jia C. A Cost-effective Nafion Composite Membrane as an Effective Vanadium-Ion Barrier for Vanadium Redox Flow Batteries. Chem Asian J 2020; 15:2357-2363. [PMID: 32166875 DOI: 10.1002/asia.202000140] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Indexed: 11/09/2022]
Abstract
Ion exchange membranes play a key role in all vanadium redox flow batteries (VRFBs). The mostly available commercial membrane for VRFBs is Nafion. However, its disadvantages, such as high cost and severe vanadium-ion permeation, become obstacles for large-scale energy storage. It is thus crucial to develop an efficient membrane with low permeability of vanadium ions and low cost to promote commercial applications of VRFBs. In this study, graphene oxide (GO) has been employed as an additive to the Nafion 212 matrix and a composite membrane named rN212/GO obtained. The thickness of rN212/GO has been reduced to only 41 μm (compared with 50 μm Nafion 212), which indicates directly lower cost. Meanwhile, rN212/GO shows lower permeability of vanadium ions and area-specific resistance compared to the Nafion 212 membrane due to the abundant oxygen-containing functional groups of GO additives. The VRFB cells with the rN212/GO membrane show higher Coulombic efficiencies and lower capacity decay than those of VRFB cells with the Nafion 212 membrane. Therefore, the cost-effective rN212/GO composite membrane is a promising alternative to suppress migration of vanadium ions across the membrane to set up VRFB cells with better performances.
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Affiliation(s)
- Xuechun Lou
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, P. R. China.,Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences (P. R. China)
| | - Du Yuan
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore, Singapore
| | - Yuesheng Yu
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, P. R. China
| | - Yanqiang Lei
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences (P. R. China)
| | - Mei Ding
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, P. R. China.,National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha, 410114, P. R. China
| | - Qijun Sun
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences (P. R. China)
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, P. R. China.,Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha, 410114, P. R. China
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Wang Y, Yuan D, Zhao S, Chen X. 521 An intelligent assistant diagnosis study of erythema and scaly skin diseases based on deep learning. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Xu G, Wang H, Yuan D, Yao J, Meng L, Li K, Zhang Y, Dang C, Zhu K. RUNX1-activated upregulation of lncRNA RNCR3 promotes cell proliferation, invasion, and suppresses apoptosis in colorectal cancer via miR-1301-3p/AKT1 axis in vitro and in vivo. Clin Transl Oncol 2020; 22:1762-1777. [PMID: 32239427 DOI: 10.1007/s12094-020-02335-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/31/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE Long non-coding RNAs (lncRNAs) have participated in progression of colorectal cancer. This study aims to study the role of RUNX1/RNCR3/miR-1301-3p/AKT1 axis in colorectal cancer. METHODS The cancer tissues were from patients with colorectal cancer. The qRT-PCR was used to determine expression of lncRNA RNCR3, miR-1301-3p, and AKT1. Both dual-luciferase reporter assay and ChIP assay were conducted to investigate the binding sites of RUNX1 on RNCR3 promoter. Western blot was performed to analyze expression of AKT1 protein. Both dual-luciferase reporter assay and RIP assay were performed to detect the interacting sites between RNCR3 and miR-1301-3p. The CCK-8 assay, soft agar assay, transwell assay, and annexin-V-FITC/PI staining were applied to analyze the cell growth, invasion, and apoptosis, respectively. RESULTS The data demonstrated that RNCR3 was elevated in colorectal cancer, and it was negatively correlated with expression of miR-1301-3p which was decreased in cancers. Then, RNCR3 could interact with and suppress miR-1301-3p expression in HCT116 and SW480. Knockdown of RNCR3 or miR-1301-3p overexpression significantly inhibited cell growth, invasion, and increased apoptosis through suppressing expression of Cyclin A1, PCNA, N-cadherin, Bcl-2, and promoting expression of E-cadherin, Bax in vitro and in vivo. RUNX1 was directly bound to RNCR3 promoter to activate RNCR3 expression. Furthermore, overexpression of RNCR3 blocked tumor inhibitory effects of miR-1301-3p on proliferation, colony formation, invasion, and apoptosis in vitro and in vivo. Additionally, RNCR3 and miR-1301-3p synergistically modulated AKT1 expression. CONCLUSION RUNX1-activated upregulation of RNCR3 promoted colorectal cancer progression by sponging miR-1301-3p to elevate AKT1 levels in vitro and in vivo.
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Affiliation(s)
- G Xu
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China.
| | - H Wang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - D Yuan
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - J Yao
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - L Meng
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - K Li
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - Y Zhang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - C Dang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - K Zhu
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
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Yuan D, Manalastas W, Zhang L, Chan JJ, Meng S, Chen Y, Srinivasan M. Lignin@Nafion Membranes Forming Zn Solid-Electrolyte Interfaces Enhance the Cycle Life for Rechargeable Zinc-Ion Batteries. ChemSusChem 2019; 12:4889-4900. [PMID: 31475452 DOI: 10.1002/cssc.201901409] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/22/2019] [Indexed: 05/13/2023]
Abstract
Metallic zinc is an ideal anode material for rechargeable zinc-ion batteries (ZIBs), taking us beyond the lithium-ion era. In-depth understanding of the Zn metal surface is currently required owing to diverse but uncorrelated data about the Zn surface in mild environments. Herein, the surface chemistry of Zn is elucidated and the formation and growth of a zinc layer hydroxide is verified as an effective solid-electrolyte interface (SEI) during stripping/plating in mild electrolyte. The effects of battery separators/membranes on the growth of an effective SEI and deposited Zn are then investigated from the perspectives of structure, morphology, compositions, and interfacial impedance. Nafion-based membranes enable the formation of a planar SEI, which protects the metal surface and prevents short circuiting. Biomass@Nafion membranes are developed and assessed with a long cycle life of over 400 h compared with below 200 h for physical separators. The mechanism behind this is attributed to interaction between the membranes and Zn2+ , which enables reshaping of the Zn2+ coordination in an aqueous medium. Together with the advantages of using the membranes in β-MnO2 |ZnSO4 |Zn, our work provides a feasible way to design an effective SEI for advancing the use of Zn anodes in rechargeable ZIBs.
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Affiliation(s)
- Du Yuan
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
| | - William Manalastas
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Liping Zhang
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
| | - Jun Jie Chan
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
| | - Shizhe Meng
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
| | - Yingqian Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Madhavi Srinivasan
- Energy Research Institute, Nanyang Technological University, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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Yuan D, Liu XM, Fang Z, Du LL, Chang J, Lin SH. Protective effect of resveratrol on kidney in rats with diabetic nephropathy and its effect on endoplasmic reticulum stress. Eur Rev Med Pharmacol Sci 2019; 22:1485-1493. [PMID: 29565511 DOI: 10.26355/eurrev_201803_14497] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Diabetic nephropathy (DN) can cause chronic renal insufficiency and significantly reduce the life quality of patients with diabetes mellitus, and may eventually lead to death. The study investigated the expression of endoplasmic reticulum stress-related factors, which have important roles in the progress of DN and to explore effects of resveratrol on DN and the possible mechanism. MATERIALS AND METHODS Specific pathogen free (SPF) grade healthy male Sprague Dawley (SD) rats were divided into different groups for different treatments. The diabetic rat model was established by intraperitoneal injection of low-dose streptozotocin (STZ) (40 mg/kg). The normal rats and diabetes model rats were divided into four groups including normal control group (N), normal control + resveratrol (N+R), model group (M), and model + resveratrol group (M+R) for different treatments. The changes of renal histology were observed by immunohistochemistry. Glucose oxidase/peroxidase method was used to measure FPG, UP 24 h content was measured by bicinchoninic acid (BCA) assay, BUN, Scr and Cys C content were measured by automatic biochemical analyzer. The expressions of 78 kDa glucose-regulated protein (GRP78), protein kinase RNA-like endoplasmic reticulum kinase (PERK), and activating transcription factor 4 (ATF4) and C/EBP-homologous protein (CHOP) were analyzed by Western blot. RESULTS Resveratrol treatment significantly reduced the fasting blood glucose level, urinary protein level and renal pathological damage. The phosphorylation of PERK in the kidney of rats with diabetes was up-regulated, while resveratrol treatment reduced this change. The expression of p- PERK, GRP78, ATF4, and CHOP was significantly increased in rats with diabetes, while resveratrol treatment can reduce the increased level of those endoplasmic reticulum stress related factors. CONCLUSIONS Resveratrol has a good therapeutic effect on DN in rats without side effect. The mechanism may be related to the regulation of endoplasmic reticulum stress response.
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Affiliation(s)
- D Yuan
- Department of Nephrology, Yantaishan Hospital, Yantai, Shandong Province, China.
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Lin H, Ran W, Chen X, Wang B, Yang P, Li Y, Xiao Y, Wang X, Li G, Wang L, Han Y, Peng Y, Lang J, Liang Y, Tian G, Yuan D, Yang J, Deng C, Xing X. Whole-exome sequencing of tumour-only samples reveals the association between somatic alterations and clinical features in pancreatic cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz431.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Yang H, Ye L, Su L, Liu Y, Xiao L, Hu Y, Wei DB, Yuan D, Zhou GS, Liu HL, Yu J, Liang S. [An analysis on incidence of HIV-1 epidemics among men who have sex with men in Sichuan Province during 2011-2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:327-329. [PMID: 30841677 DOI: 10.3760/cma.j.issn.0253-9624.2019.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The assay was used in HIV/AIDS surveillance sentinel sites to identify recent HIV-1 infection, to estimate HIV-1 incidence and understand the epidemic trends among men who have sex with men during 2011-2015. During 2011-2015, the HIV-1 incidence of men who have sex with men was 5.16%(95%CI: 4.65%-5.66%) in Sichuan Province. According to<Pilot study on classification criteria of AIDS epidemic in China>, a total of 9 cities had been divided into two type of regions: the first type(the proportion of live HIV/AIDS accounts for more than 0.1% of the permanent population, and the number of live HIV/AIDS has reached 500 cases and above) and the second type(the proportion of live HIV/AIDS accounts for 0.03% to 0.100% of the permanent population, and the number of live HIV/AIDS has reached 100-500 cases). During 2011-2015, the HIV-1 incidence of the second type was 4.24% (95%CI: 3.72%-4.76%). The HIV-1 incidence of men who have sex with men was at a high level. The spread of HIV-1 to the second region was possible.
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Affiliation(s)
- H Yang
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Ye
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Su
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Liu
- Department for AIDS/STD Control and Prevention, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Xiao
- Department for Sanitary Inspection, Yi Autonomous Prefecture of Liangshan Center for Disease Control and Prevention, Xichang 615000, China
| | - Y Hu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D B Wei
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D Yuan
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - G S Zhou
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - H L Liu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - J Yu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - S Liang
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
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Dong J, Gao N, Waller AS, Cook FR, Fan S, Yuan D, Du Y, Li F, Norimine J, Zhu W. An outbreak of strangles associated with a novel genotype of Streptococcus equi subspecies equi in donkeys in China during 2018. Equine Vet J 2019; 51:743-748. [PMID: 30900775 DOI: 10.1111/evj.13114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/15/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Strangles is a highly contagious respiratory disease of equids caused by the bacterium Streptococcus equi subspecies equi. OBJECTIVES To identify the cause of an outbreak of strangles that occurred on donkey farms within the Shandong Province of China and determine the prevalence of the disease. STUDY DESIGN Cross-sectional. METHODS Samples were taken from clinically affected animals to measure the prevalence of strangles within the population of donkeys at six intensive farms in China and identify the SeM type of isolate recovered from affected animals. Diagnosis was confirmed by bacterial isolation, biochemical tests and PCR. Epidemiological data were analysed using Chi-square test and a Fisher's exact two-sided test. The SeM gene of S. equi isolates recovered from affected animals was determined and compared with the SeM database PubMLST-seM. RESULTS In July and August 2018, an outbreak of strangles occurred on six donkey farms within the Shandong Province of China. The overall prevalence of disease within the different donkey herds was 13.4%. Younger animals were worst affected with 40.3% (83/206) of donkey foals aged under 1 year exhibiting clinical signs compared with 12.5% (191/1525) of donkeys aged one to 2 years and 3.8% (17/442) of donkeys over 2 years of age. Analysis of SeM sequencing data identified that the farms were affected by the same strain of S. equi, SD201807, which contains the novel 136 allele of SeM. MAIN LIMITATIONS Healthy donkeys were not sampled in this study. CONCLUSIONS The number of intensive donkey breeding farms in China has risen recently. The higher numbers of animals that are in closer proximity to one another raise the potential for the transmission of infectious diseases such as strangles. This is the first description of a strangles outbreak among donkey herds in China. The Summary is available in Chinese - see Supporting information.
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Affiliation(s)
- J Dong
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China.,Shandong Donkey Industry Technology Collaborative Innovation Center, College of Agronomy, Liaocheng University, Liaocheng, China.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - N Gao
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | | | - F R Cook
- Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, Kentucky, USA
| | - S Fan
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - D Yuan
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - Y Du
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - F Li
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - J Norimine
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - W Zhu
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China.,Shandong Donkey Industry Technology Collaborative Innovation Center, College of Agronomy, Liaocheng University, Liaocheng, China
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Manalastas W, Kumar S, Verma V, Zhang L, Yuan D, Srinivasan M. Water in Rechargeable Multivalent-Ion Batteries: An Electrochemical Pandora's Box. ChemSusChem 2019; 12:379-396. [PMID: 30480870 DOI: 10.1002/cssc.201801523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Multivalent-ion batteries built on water-based electrolytes represent energy storage at suitable price points, competitive performance, and enhanced safety. However, to comply with modern energy-density requirements, the battery must be reversible within an operating voltage window greater than 1.23 V or the electrochemical stability limits of free water. Taking advantage of its powerful solvation and catalytic activities, adding water to electrolyte preparations can unlock a wider gamut of liquid mixtures compared with strictly nonaqueous systems. However, a point-by-point sweep of all potential formulations is arduous and ineffective without some form of systematic rationalization. The present Review consolidates recent progress, pitfalls, limits, and insights critical to expediting aqueous electrolyte designs to boost multivalent-ion battery outputs.
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Affiliation(s)
- William Manalastas
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Ave, 639977, Singapore, Singapore
| | - Sonal Kumar
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Ave, 639977, Singapore, Singapore
| | - Vivek Verma
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Ave, 639977, Singapore, Singapore
| | - Liping Zhang
- Energy Research Institute @ NTU, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore, Singapore
| | - Du Yuan
- Energy Research Institute @ NTU, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore, Singapore
| | - Madhavi Srinivasan
- School of Materials Science and Engineering, Nanyang Technological University, 11 Faculty Ave, 639977, Singapore, Singapore
- Energy Research Institute @ NTU, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore, Singapore
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Abstract
Small cell lung cancer (SCLC) is of a high-grade malignancy with a high metastatic potential and poor clinical prognosis. Unfortunately, SCLC initially exhibits a good response to chemotherapy and radiation therapy, but inevitably, relapses decrease patients' chance of survival. Despite tremendous advances on the development of new chemotherapeutic agents, the prognosis of this disease remains poor. Immunotherapy plays a role in eliciting an anticancer response by modulating the patient's immune response of the tumor. Several studies have demonstrated that abnormal autoimmune regulation has a close relationship with SCLC. Thus, several immunotherapy trials are focused on SCLC treatment, including such approaches as immune checkpoints blockers, tumor vaccine, antigenic targets and adoptive cellular immunotherapy to benefit patients with SCLC. To date, the results from immunotherapy in SCLC have not been promising. For example, tumor vaccines have not been demonstrated to have a significant survival benefit. However, there have been many promising advances with immune checkpoints blockers. This review will provide a general overview of immunotherapy in SCLC. The landmark clinical trials in previous successful immunotherapy studies are summarized here. Finally, the challenges of immunotherapy in SCLC are discussed to facilitate the prediction of possible and valuable strategies for future therapy.
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Lin W, Yuan D, Deng Z, Niu B, Chen Q. The cellular and molecular mechanism of glutaraldehyde-didecyldimethylammonium bromide as a disinfectant against Candida albicans. J Appl Microbiol 2019; 126:102-112. [PMID: 30365207 DOI: 10.1111/jam.14142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/13/2018] [Accepted: 10/11/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES In our previous research, we have developed a new combination disinfectant, glutaraldehyde-didecyldimethylammonium bromide (GD). It was verified that GD had a strong effect on both Escherichia coli and Staphylococcus aureus. In this work, Candida albicans was selected as an object, and it could be killed by GD. We aimed to investigate the cellular and molecular mechanism of GD effecting on C. albicans. METHODS AND RESULTS The results of sterilization experiment indicated that GD was effective on C. albicans. Flow cytometry and atomic absorption spectrometry were applied to detect cell membrane damage of C. albicans. Luciferase reaction and Bradford method were carried out to detect ATP content and protein quantitation. Transmission electron microscopy was used for intracellular organelles morphological observation. In order to study changes in mitochondrial membrane potential, Rh 123 was used as an indicator. DNA conformation analysis was performed by molecular modelling and circular dichroism. The results indicated that membrane permeability was increased rapidly owing to GD effect, and the leaked K+ and Mg2+ were about 12·1 and 12·4 times those of the control, respectively, at 10 min after GD treatment. Simultaneously, ATP and protein also leaked rapidly out of the cell. Mitochondrial membrane potential was destroyed, succinic dehydrogenase activity was significantly decreased and DNA conformation was changed because of GD action. CONCLUSIONS Glutaraldehyde-didecyldimethylammonium bromide disinfected C. albicans through distorting cell membrane integrity and permeability, disturbing the intracellular homeostasis by intracellular substances leakage, especially K+ , Mg2+ , ATP and protein, causing electrolyte imbalance of mitochondria, changing DNA structure, which finally led to cell death. SIGNIFICANCE AND IMPACT OF THE STUDY This study focused on the cellular and molecular mechanism of GD as a disinfectant against C. albicans. It is important to provide theoretical support to GD against Candida albicans in practical application.
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Affiliation(s)
- W Lin
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - D Yuan
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Z Deng
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - B Niu
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Q Chen
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
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40
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Lewis AJ, Zhang X, Griepentrog JE, Yuan D, Collage RD, Waltz PK, Angus DC, Zuckerbraun BS, Rosengart MR. Blue Light Enhances Bacterial Clearance and Reduces Organ Injury During Sepsis. Crit Care Med 2018; 46:e779-e787. [PMID: 29727369 PMCID: PMC6045458 DOI: 10.1097/ccm.0000000000003190] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The physiology of nearly all mammalian organisms are entrained by light and exhibit circadian rhythm. The data derived from animal studies show that light influences immunity, and these neurophysiologic pathways are maximally entrained by the blue spectrum. Here, we hypothesize that bright blue light reduces acute kidney injury by comparison with either bright red or standard, white fluorescent light in mice subjected to sepsis. To further translational relevance, we performed a pilot clinical trial of blue light therapy in human subjects with appendicitis. DESIGN Laboratory animal research, pilot human feasibility trial. SETTING University basic science laboratory and tertiary care hospital. SUBJECTS Male C57BL/6J mice, adult (> 17 yr) patients with acute appendicitis. INTERVENTIONS Mice underwent cecal ligation and puncture and were randomly assigned to a 24-hour photoperiod of bright blue, bright red, or ambient white fluorescent light. Subjects with appendicitis were randomized to receive postoperatively standard care or standard care plus high-illuminance blue light. MEASUREMENTS AND MAIN RESULTS Exposure to bright blue light enhanced bacterial clearance from the peritoneum, reduced bacteremia and systemic inflammation, and attenuated the degree of acute kidney injury. The mechanism involved an elevation in cholinergic tone that augmented tissue expression of the nuclear orphan receptor REV-ERBα and occurred independent of alterations in melatonin or corticosterone concentrations. Clinically, exposure to blue light after appendectomy was feasible and reduced serum interleukin-6 and interleukin-10 concentrations. CONCLUSIONS Modifying the spectrum of light may offer therapeutic utility in sepsis.
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Affiliation(s)
- Anthony J. Lewis
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - Xianghong Zhang
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - John E. Griepentrog
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - Du Yuan
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Richard D. Collage
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - Paul K. Waltz
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - Derek C. Angus
- Department of Critical Care Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA, USA 15261
| | - Brian S. Zuckerbraun
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
| | - Matthew R. Rosengart
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, USA 15213
- Department of Critical Care Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA, USA 15261
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41
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Ding M, Ling X, Yuan D, Cheng Y, Wu C, Chao ZS, Sun L, Yan C, Jia C. SPEEK Membrane of Ultrahigh Stability Enhanced by Functionalized Carbon Nanotubes for Vanadium Redox Flow Battery. Front Chem 2018; 6:286. [PMID: 30140669 PMCID: PMC6094973 DOI: 10.3389/fchem.2018.00286] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/25/2018] [Indexed: 12/21/2022] Open
Abstract
Proton exchange membrane is the key factor of vanadium redox flow battery (VRB) as their stability largely determine the lifetime of the VRB. In this study, a SPEEK/MWCNTs-OH composite membrane with ultrahigh stability is constructed by blending sulfonated poly(ether ether ketone) (SPEEK) with multi-walled carbon nanotubes toward VRB application. The carbon nanotubes disperse homogeneously in the SPEEK matrix with the assistance of hydroxyl group. The blended membrane exhibits 94.2 and 73.0% capacity retention after 100 and 500 cycles, respectively in a VRB single cell with coulombic efficiency of over 99.4% at 60 mA cm−2 indicating outstanding capability of reducing the permeability of vanadium ions and enhancing the transport of protons. The ultrahigh stability and low cost of the composite membrane make it a competent candidate for the next generation larger-scale vanadium redox flow battery.
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Affiliation(s)
- Mei Ding
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Xiao Ling
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Du Yuan
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Yuanhang Cheng
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Chun Wu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Zi-Sheng Chao
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China
| | - Lidong Sun
- State Key Laboratory of Mechanical Transmission, School of Materials Science and Engineering, Chongqing University, Chongqing, China.,Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, China
| | - Chuanwei Yan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China.,Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, China
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42
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Lv H, Wang F, Liu D, Zhang Y, Gu Y, Yuan D, Xing S, Wu X, Yang J, Zhang W, Scott K. Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hang Lv
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Fang Wang
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Daoguang Liu
- Shanghai Techase
Environment Protection Co., Ltd. 1121 North Zhongshan No. 2 Road, Shanghai, 200092, China
| | - Yanlin Zhang
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Yueyuan Gu
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Du Yuan
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Siqi Xing
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Xu Wu
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Jiakuan Yang
- School of Environmental Science and Engineering, Huazhong Unviersity of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China
| | - Wenbiao Zhang
- Shanghai Techase
Environment Protection Co., Ltd. 1121 North Zhongshan No. 2 Road, Shanghai, 200092, China
| | - Keith Scott
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
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43
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Li KX, Wang JS, Yuan D, Zhao RX, Wang YX, Zhan XA. Effects of different selenium sources and levels on antioxidant status in broiler breeders. Asian-Australas J Anim Sci 2018; 31:1939-1945. [PMID: 29879825 PMCID: PMC6212737 DOI: 10.5713/ajas.18.0226] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/18/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE This study was conducted with the objectives to examine the impacts of inorganic selenium (Se) and different types and levels of organic selenium on the serum and tissues Se status and antioxidant capacity in broiler breeders. METHODS Five hundred and forty 48-wk-old Lingnan Yellow broiler breeders were randomly assigned to 6 dietary treatments, provided same basal diet (0.04 mg/kg of Se) with 0.15 mg/kg, or 0.30 mg/kg of Se from sodium selenite (SS) or from selenium-enriched yeast (SY) or from selenomethionine (SM). The broiler breeders were slaughtered after an 8-wk experiment. RESULTS The results showed that SM was better than SY and SS, 0.30 mg/kg level was better than 0.15 mg/kg level in Se deposition (p<0.05) in serum, liver, kidney, pancreas and muscle; in antioxidant status, organic selenium had better effects than SS in broiler breeders (p<0.05), but SM and SY had a similar result, and 0.15 mg/kg level was better than 0.30 mg/kg (p<0.05). CONCLUSION The results demonstrated the evident advantage of supplementation of broiler breeders with 0.15 mg/kg SM, which improved tissue Se concentrations and antioxidant status, and can be considered as the best selenium source.
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Affiliation(s)
- K X Li
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - J S Wang
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - D Yuan
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - R X Zhao
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Y X Wang
- College of Animal Science and Technology, Zhejiang A and F University, Linan 311300, China
| | - X A Zhan
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
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44
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Yang H, Su L, Ye L, Xiao L, Hu Y, Shen MG, Wei DB, Yuan D, Zhou GS, Liu HL, Yu J, Liang S. [Incidence rates of HIV-1 epidemics among 4 high risk groups in Sichuan province during 2011-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 38:1649-1654. [PMID: 29294581 DOI: 10.3760/cma.j.issn.0254-6450.2017.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Data from the HIV/AIDS surveillance sentinel sites was used to identify the recent HIV-1 infections and to estimate the HIV-1 incidence and epidemic trends among intravenous drug users (IDU), MSM, female sex workers and men attending the sexually transmitted disease clinics in Sichuan province. Methods: Specimens collected from IDUs, MSM, female sex workers and men attending the sexually transmitted disease clinics sentinel sites were confirmed as HIV-1 positive and tested with BED-CEIA. Annual HIV-1 prevalence and incidence rates were calculated and the incidence was adjusted by McNermar method. Results: A total number of 194 223 serum specimens were collected and HIV antibody tested, with 5 297 HIV-1 positive. 4 640 of the positives underwent BED-CEIA, with 749 identified as recent infections. During 2011-2015, HIV-1 incidence rates of the four types of population appeared as 5.16% (95%CI: 4.65-5.66), 0.22% (95%CI:0.16-0.28), 0.57%(95%CI: 0.45-0.69), 7.53% (95%CI: 6.06-9.01) and 0.44% (95%CI: 0.36-0.53) respectively. Significant differences were seen in the HIV-1 incidence rates. Conclusions: The HIV-1 incidence rates of IDUs from other sentinel sites in Sichuan province, female sex workers and men attending the sexually transmitted disease clinics appeared low, showing that the AIDS prevention and control activities worked effectively. However, the HIV-1 incidence of MSM was still at high level and even rising, suggesting that HIV-1 transmission between MSM and IDUs was possible.
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Affiliation(s)
- H Yang
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Su
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Ye
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Xiao
- Liangshan Yi Autonomous Prefecture Center for Disease Control and Prevention, Xichang 615000, China
| | - Y Hu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - M G Shen
- Liangshan Yi Autonomous Prefecture Center for Disease Control and Prevention, Xichang 615000, China
| | - D B Wei
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D Yuan
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - G S Zhou
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - H L Liu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - J Yu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - S Liang
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
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45
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Sun Q, Shen M, Li F, Liu J, Lu L, Zhu M, Yuan D. Immune Regulatory Effects of Enteromorphaclathrata Polysaccharides on Nd Attenuated Vaccine in a Chicken Model Infected with Reticuloendotheliosis Virus. Rev Bras Cienc Avic 2017. [DOI: 10.1590/1806-9061-2016-0460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Q Sun
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - M Shen
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - F Li
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - J Liu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - L Lu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - M Zhu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - D Yuan
- Shandong Animal Husbandry and Veterinary Vocational College, China
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46
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Hu Y, Zhang Y, Yuan D, Li X, Cai Y, Wang J. Controllable structure transitions of Mn 3O 4 nanomaterials and their effects on electrochemical properties. Nanoscale Horiz 2017; 2:326-332. [PMID: 32260662 DOI: 10.1039/c7nh00078b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mn3O4 with purposely tuned different morphologies, crystal structures and sizes is synthesized using a hydrothermal method with varying processing temperatures, together with the help of a surfactant. Systematic investigations, both by experimental and computational studies, into these Mn3O4 nanomaterials were conducted in order to find the most suitable morphology and a compatible electrolyte for energy storage applications. The Mn3O4 nanofibers with a tunnel size of 1.83 Å in the crystal structure show much higher volumetric capacitance (188 F cm-3 at a scan rate of 1 mV s-1 of cyclic voltammetry test) than two other morphologies/crystal structures, when using 1 M LiCl aq. as the electrolyte. It is demonstrated in this work that crystal morphology and particle size play important roles in determining the capacitance of an electrode material. In addition, the detailed structures, especially the atomic arrangements within the crystalline structure, are crucial in order to choose the most suitable electrolyte.
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Affiliation(s)
- Yating Hu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, Singapore.
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47
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Huang S, Yuan D, Guo JC, Zhang TP, Zhao YP. [Bit1 mediates the malignant behaviors in pancreatic cancer and its potential clinical significance]. Zhonghua Wai Ke Za Zhi 2017; 55:857-862. [PMID: 29136735 DOI: 10.3760/cma.j.issn.0529-5815.2017.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the potential role of Bit1 in the pathogenesis of pancreatic ductal cancer cells(PDAC) and its potential clinical application value. Methods: Real-time PCR and Western blot were employed to detect the expression of Bit1 in six pancreatic cancer cells, then the tool cells were selected to further study the function of Bit1.PolyHEMA was used to monitor the suspended cell culture condition in vitro.The invasion and migration abilities of pancreatic cancer cells were detected through Transwell assay. Western blot and confocal assay were used to explore the potential mechanism of Bit1 in the process of metastasis.The expression of Bit1 was detected through tissue microarray, the potential relationship between Bit1 and other clinical factors were analyzed. Results: The results of real-time PCR and Western blot indicated that the expression of Bit1 was highest in the PANC1 cells and lowest in the Mia paca2 cells (gene: 3.13±0.40 vs. 1.00±0.35, protein: 1.77±1.00 vs. 0.23±0.45). The shBit1 PANC1 and Bit1-OE(over expression) Mia paca2 cells were successfully constructed.Bit1 over expression could promote the anoikis rate of Mia paca2 cells, and Bit knockdown could inhibit the anoikis incidence.Bit1 over expression suppressed the motility and invasion of Mia paca2 cells, but Bit1 knockdown could accelerate the migration and invasion ability of PANC1 cells.Bit1 could potentially affect pancreatic cancer cells' malignant behaviors through epithelial-mesenchymal transition process.Bit1 expression was significantly associated with pancreatic cancer's neural invasion (P<0.05). Conclusions: Bit1 could affect the anoikis incidence of pancreatic cancer, Bit1 negatively affect the migration and invasion abilities of PDAC, the EMT process was potentially involved in the whole modulation process.Bit1 expression is associated with neural invasion in pancreatic cancer patients.
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Affiliation(s)
- S Huang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
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48
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Zhang X, Yuan D, Sun Q, Xu L, Lee E, Lewis AJ, Zuckerbraun BS, Rosengart MR. Calcium/calmodulin-dependent protein kinase regulates the PINK1/Parkin and DJ-1 pathways of mitophagy during sepsis. FASEB J 2017; 31:4382-4395. [PMID: 28615325 DOI: 10.1096/fj.201601096rrr] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 06/06/2017] [Indexed: 11/11/2022]
Abstract
During sepsis and shock states, mitochondrial dysfunction occurs. Consequently, adaptive mechanisms, such as fission, fusion, and mitophagy, are induced to eliminate damaged portions or entire dysfunctional mitochondria. The regulatory PINK1/Parkin and DJ-1 pathways are strongly induced by mitochondrial depolarization, although a direct link between loss of mitochondrial membrane potential (ΔΨ) and mitophagy has not been identified. Mitochondria also buffer Ca2+, and their buffering capacity is dependent on ΔΨ Here, we characterize a role for calcium/calmodulin-dependent protein kinase (CaMK) I in the regulation of these mechanisms. Loss of ΔΨ with either pharmacologic depolarization or LPS leads to Ca2+-dependent mitochondrial recruitment and activation of CaMKI that precedes the colocalization of PINK1/Parkin and DJ-1. CaMKI is required and serves as both a PINK1 and Parkin kinase. The mechanisms operate in both immune and nonimmune cells and are induced in in vivo models of endotoxemia, sepsis, and hemorrhagic shock. These data support the idea that CaMKI links mitochondrial stress with the PINK1/Parkin and DJ-1 mechanisms of mitophagy.-Zhang, X., Yuan, D., Sun, Q., Xu, L., Lee, E., Lewis, A. J., Zuckerbraun, B. S., Rosengart, M. R. Calcium/calmodulin-dependent protein kinase regulates the PINK1/Parkin and DJ-1 pathways of mitophagy during sepsis.
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Affiliation(s)
- Xianghong Zhang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Du Yuan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Qian Sun
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Li Xu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Emma Lee
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Anthony J Lewis
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Brian S Zuckerbraun
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Matthew R Rosengart
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;
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49
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Zhao H, Song L, Huang W, Liu J, Yuan D, Wang Y, Zhang C. Total flavonoids of Epimedium
reduce ageing-related oxidative DNA damage in testis of rats via p53-dependent pathway. Andrologia 2017; 49. [PMID: 28370226 DOI: 10.1111/and.12756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2016] [Indexed: 12/11/2022] Open
Affiliation(s)
- H. Zhao
- Medical College of China Three Gorges University; Yichang China
| | - L. Song
- Medical College of China Three Gorges University; Yichang China
| | - W. Huang
- Medical College of China Three Gorges University; Yichang China
| | - J. Liu
- Medical College of China Three Gorges University; Yichang China
| | - D. Yuan
- Renhe Hospital of China Three Gorges University; Yichang China
| | - Y. Wang
- LONGHUA Hospital Shanghai University of Traditional Chinese Medicine; Shanghai China
| | - C. Zhang
- Medical College of China Three Gorges University; Yichang China
- LONGHUA Hospital Shanghai University of Traditional Chinese Medicine; Shanghai China
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50
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Abstract
Abstract
In this study thermoplastic polyurethane (TPUs) nanocomposites incorporating carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) were prepared via melt blending and compression molding and CNT dispersion was optimized by using non-covalent surface modification (surfactant). Filler dispersion was further improved by combining two fillers with different geometric shape and aspect ratio in hybrid filler nanocomposites. Synergistic effects were observed in the TPU-GNP-CNT hybrid composites, especially when combining GNP and CNT at a ratio of 6 : 4, showing higher tensile modulus and strength with respect to the systems incorporating individual CNTs and GNPs at the same overall filler concentration. This improvement was attributed to the interaction between CNTs and GNPs limiting GNP aggregation and bridging adjacent graphene platelets thus forming a more efficient network. Hybrid systems also exhibited improved creep resistance and recovery ability. Morphological analysis carried out by scanning electron microscopy (SEM) indicated that the hybrid nanocomposite presented slightly smaller and more homogeneous filler aggregates. The well-dispersed nanofillers also favored higher phase separation in TPU, as indicated by atomic force microscopy (AFM), resulting in a better microstructure able to enhance the load transfer and maximize the mechanical and viscoelastic properties.
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Affiliation(s)
- D. Yuan
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
| | - D. Pedrazzoli
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
| | - I. Manas-Zloczower
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
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