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Chinese Chemical Letters 2014年第4期25卷 511-516页

作者： zi-Lan Feng Yuan-Yuan Yao Jing-Kun Xu Long Zhang zi-fei wang Yang-Ping Wen Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University College of Science Jiangxi Agricultural University

A novel graphene oxide （GO） doped poly（hydroxymethylated-3,4-ethylenedioxythiophene）（PEDOTM） film has been achieved via one-step co-electrodeposition and utilized for electrochemical studies of indole-3-acetic acid （IAA）. The incorporation of GO into PEDOTM film facilitated the electrocatalytic activity and exhibited a favorable interaction between the PEDOTM/GO film and the phytohormone during the oxidation of IAA. Under optimized conditions, differential pulse voltammetry and square wave voltammetry were used for the quantitative analysis of IAA, respectively, each exhibiting a wide linearity range from 0.6 μmol L-1 to 10 μmol L-1 and 0.05 μmol L-1 to 40 μmol L-1, good sensitivity with a low detection Iimit of 0.087 μmol L-1 and 0.033μmol L T, respectively, as well as good stability. With the notable advantages of a green, sensitive method, expeditious response and facile operation, the as-prepared PEDOTM/GO organic-inorganic composite film provides a promising platform for electrochemical studies of IAA.

关键词： Co-electrodeposition EDOT derivatives Graphene oxide Indole-3-acetic acid

Accelerated glacier mass loss in the southeastern Tibetan Plateau since the 1970s

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Advances in Climate Change Research 2023年第3期14卷 372-386页

作者： Lan-Hua LUO Chang-Qing KE Yu-Bin FAN zi-fei wang Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural ResourcesSchool of Geography and Ocean ScienceNanjing UniversityNanjing 210023China Collaborative Innovation Center of Novel Software Technology and Industrialization Nanjing 210023China Collaborative Innovation Center of South China Sea Studies Nanjing 210023China

The southeastern Tibetan Plateau(SETP)is a region in High Mountain Asia with the most serious glacier mass ***,long-term and large regional-scale studies that estimate glacier mass balance in this area remain *** this study,we generated a KH-9 Digital Elevation Model(DEM)(covering 87.6%of the glacier area)for the 1970s from KH-9 Hexagon imagery and quantified geodetic glacier mass over the SETP from the 1970s to 2020 using KH-9 DEM,NASADEM and ICESat-2 ATL06 *** results show that the SETP was in a state of serious mass loss(at a rate of−0.35±0.03 m *** year)from the 1970s to 2020,and the rate of mass loss accelerated from−0.15±0.05 to−0.56±0.10 m *** year between the 1970s–2000 and 2000–*** the SETP,the glacier mass balance revealed a remarkable spatial *** maximum mean glacier mass loss rate was observed in the Hengduan *** exhibited the highest acceleration in the mass loss rate since the *** warming of air temperature and decreasing snowfall can partly explain the accelerated glacier mass loss in the *** study provides a new long-term glacier mass balance estimation covering almost the entire SETP that suggests the acceleration in glacier mass loss observed in the SETP since the 1970s is a regional tendency,which is crucial for understanding the relationship between glaciers and climate changes.

关键词： Glacier mass balance KH-9 hexagon imagery NASADEM ICESat-2 Southeastern Tibetan Plateau

Electrochemical determination of quercetin by self-assembled platinum nanoparticles/poly(hydroxymethylated-3,4-ethylenedioxylthiophene) nanocomposite modified glassy carbon electrode

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Chinese Chemical Letters 2014年第4期25卷 505-510页

作者： Yuan-Yuan Yao Long Zhang zi-fei wang Jing-Kun Xu Yang-Ping Wen Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University College of Science Jiangxi Agricultural University

A simple and sensitive platinum nanoparticles/poly（hydroxymethylated-3,4-ethylenedioxylthiophene） nanocomposite （PtNPs/PEDOT-MeOH） modified glassy carbon electrode （GCE） was successfully developed for the electrochemical determination of quercetin. Scanning electron microscopy and energy dispersive X-ray spectroscopy results indicated that the PtNPs were inserted into the PEDOT- MeOH layer. Compared with the bare GCE and poly（3,4-ethylenedioxythiophene）（PEDOT） electrodes, the PtNPs/PEDOT-MeOH/GCE modified electrode exhibited a higher electrocatalytic ability toward the oxidation of quercetin due to the synergic effects of the electrocatalytic activity and strong adsorption ability of PtNPs together with the good water solubility and high conductivity of PEDOT-MeOH. The electrochemical sensor can be applied to the quantification of quercetin with a linear range covering 0.04-91μmol L-1 and a low detection limit of 5.2 nmol L-1. Furthermore, the modified electrode also exhibited good reoroducibilitv and long-term stability, as well as high selectivity.

关键词： Poly( 3 4-ethylenedioxylthiophene methanol) Platinum nanoparticles Electropolymerization Differential pulse voltammetryQuercetin

Electrochemical sensor based on f-SWCNT and carboxylic group functionalized PEDOT for the sensitive determination of bisphenol A

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Chinese Chemical Letters 2014年第4期25卷 517-522页

作者： Long Zhang Yang-Ping Wen Yuan-Yuan Yao zi-fei wang Xue-Min Duan Jing-Kun Xu School of Pharmacy Jiangxi Science & Technology Normal University Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University

A simple, sensitive, and reliable method for the voltammetric determination of bisphenol A （BPA） by using carboxylic group functionalized single-walled carbon nanotubes （f-SWCNT）/carboxylic-functionalized poly（3,4-ethylenedioxythiophene）（PC4） complex modified glassy carbon electrode （GCE） has been successfully developed. The electrochemical behavior of BPA at the surface of the modified electrode is investigated by electrochemical techniques. The cyclic voltammetry results show that the as-prepared electrode exhibits strong catalytic activity toward the oxidation of BPA with a well-defined anodic peak at 0.623 V in PBS （0.1 mol/L, pH 7.0）. The surface morphology of the 3D network of composite film is beneficial for the adsorption ofanalytes. Under the optimized conditions, the oxidation peak current is proportional to BPA concentration in the range between 0.099 and 5.794 μmol/L （R2 = 0.9989）, with a limit of detection of 0.032 μmol/L （SIN = 3）. The enhanced performance of the sensor can be attributed to the excellent electrocatalytic property off-SWCNT and the extraordinary conductivity of PC4. Furthermore, the proposed modified electrode displays high stability and good reproducibility. The good result on the voltammetric determination of BPA also indicates that the asfabricated modified electrode will be a good candidate for the electrochemical determination and analysis of BPA.

关键词： Bisphenol A Electrochemical sensor Voltammetric determination Poly(3 4-ethylenedioxythiophene) derivative

Constructing oxygen deficiency-rich V_(2)O_(3)@PEDOT cathode for high-performance aqueous zinc-ion batteries

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Rare Metals 2024年第2期43卷 635-646页

作者： Dong-fei Sun zi-Juan wang Tian Tian Xin Yu Dan-Dan Yu Xiao-Zhong Zhou Guo-Fu Ma zi-Qiang Lei Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceSchool of College of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou730070China

Aqueous zinc-ion batteries(AziBs)have attracted widespread attention due to the advantages of high safety and environmental *** V_(2)O_(3) is a promising cathode,the strong electrostatic interaction between Zn^(2+) and V_(2)O_(3) crystal,and the sluggish reaction kinetics still limit their application in ***,the oxygen defects rich V_(2)O_(3) with conducive poly(3,4-ethylenedioxythiophene)(PEDOT)shell(V_(2)O_(3)-Od@PEDOT)was fabricated for AziBs by combining the sulfur-assisted thermal reduction and in-situ polymerization *** introduced oxygen vacancies of V_(2)O_(3)–Od@PEDOT weaken the electrostatic interaction between Zn^(2+) and the host material,improving the interfacial electron transport,while the PEDOT coating enhances the structural stability and conductivity of V_(2)O_(3),thus accelerating the reaction *** on the advantages,V_(2)O_(3)–Od@PEDOT electrode delivers a reversible capacity of 495 mAh·g^(−1) at 0.1 A·g^(−1),good rate capability(189 mAh·g^(−1)at 8.0 A·g^(−1)),and an impressive cycling stability with 90.1%capacity retention over 1000 cycles at 8.0 A·g^(−1).The strategy may provide a path for exploiting the other materials for high performance AziBs.

关键词： Oxygen defects V_(2)O_(3) PEDOT Electrochemical self-optimization Aqueous zinc-ion batteries

Design strategies of high-performance lead-free electroceramics for energy storage applications

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Rare Metals 2024年第3期43卷 853-878页

作者： Biao Guo fei Jin Li Li zi-Zhao Pan Xin-Wei Xu Hong wang Department of Materials Science and Engineering College of EngineeringSouthern University of Science and TechnologyShenzhen518055China School of Microelectronics and State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China

A greater number of compact and reliable electrostatic capacitors are in demand due to the Internet of Things boom and rapidly growing complex and integrated electronic systems,continuously promoting the development of high-energy-density ceramic-based *** significant successes have been achieved in obtaining high energy densities in lead-based ferroelectric ceramics,the utilization of lead-containing ceramies has been restricted due to environmental and health hazards of ***-free ferroelectric ceramics have garnered tremendous attention and are expected to replace lead-based ceramics in the near ***,the energy density of lead-free ceramics is still lagging behind that of lead-containing ***,severely limiting their *** efforts have been made to enhance the energy storage performance of lead-free ceramics using multi-scale design strategies,and exciting progress has been achieved in the past *** review briefly discusses the energy storage mechanism and fundamental characteristics of a dielectric capacitor,summarizes and compares the state-of-the-art design strategies for high-energy-density lead-free ceramics,and highlights several critical issues and requirements for industrial *** prospects and challenges of lead-free ceramics for energy storage applications are also discussed.

关键词： Dielectric materials Lead-free ceramic Environment friendly Energy storage Design strategy

Dynamic manipulation of multimodal emission in Er^(3+)-activated non-core-shell structure for optical thermometry and information security

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Rare Metals 2024年第4期43卷 1702-1712页

作者： Xuan Liu zi-Xia Lin Yin-Biao Shi Xiao-Yan wang Ming-Ye Ding Xiao-fei Yang College of Science Nanjing Forestry UniversityNanjing210037China Testing Center Yangzhou UniversityYangzhou225009China

Regulating luminescent dynamics of lanthanide-based luminescent materials via external stimuli is of great significance in the fields of optical thermometry and high-level ***,it is still a huge challenge to realize multimodal emissions with tunable color outputs from a single activator in simple structures via smart dynamic control of photon transition ***,we present a mechanistic strategy to achieve multimodal luminescence of Er^(3+)activators with color-switchable outputs in a non-core-shell *** the control of excitation dynamics(λ_(ex)=980,808,1532,377 nm),the population among the intermediate en ergy levels of Er^(3+)and the interaction between Er^(3+)and Yb^(3+)could be precisely modulated through energy transfer and migration processes,leading to the generation of colortunable multimodal luminescence upon diverse excitation modes(non-steady-state,single-/dual-wavelength steady,thermal activation).Inspired by its special luminescent performance,the as-obtained material exhibits great potential in noncontact thermometry,multimodal anticounterfeiting,and high-capacity information encryption by performing a series of proof-of-concept *** findings might provide a conceptual model to modulate the luminescent dynamics in a simple-structured system for the generation of color-adjustable multimodal emissions,which is convenient for the development of advanced luminescent materials toward versatile cuttingedge applications.

关键词： Lanthanide ions Multimodal emission Upconversion Downshifting Anti-counterfeiting Luminescent thermometry

Predictive value of red blood cell distribution width and hematocrit for short-term outcomes and prognosis in colorectal cancer patients undergoing radical surgery

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World Journal of Gastroenterology 2024年第12期30卷 1714-1726页

作者： Dong Peng zi-Wei Li fei Liu Xu-Rui Liu Chun-Yi wang Department of Gastrointestinal Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Previous studies have reported that low hematocrit levels indicate poor survival in patients with ovarian cancer and cervical cancer,the prognostic value of hematocrit for colorectal cancer(CRC)patients has not been *** prognostic value of red blood cell distribution width(RDW)for CRC patients was *** To investigate the impact of RDW and hematocrit on the short-term outcomes and long-term prognosis of CRC patients who underwent radical *** Patients who were diagnosed with CRC and underwent radical CRC resection between January 2011 and January 2020 at a single clinical center were *** short-term outcomes,overall survival(OS)and disease-free survival(DFS)were compared among the different *** analysis was also conducted to identify independent risk factors for OS and *** There were 4258 CRC patients who underwent radical surgery included in our study.A total of 1573 patients were in the lower RDW group and 2685 patients were in the higher RDW *** were 2166 and 2092 patients in the higher hematocrit group and lower hematocrit group,*** in the higher RDW group had more intraoperative blood loss(P<0.01)and more overall complications(P<0.01)than did those in the lower RDW ***,patients in the lower hematocrit group had more intraoperative blood loss(P=0.012),longer hospital stay(P=0.016)and overall complications(P<0.01)than did those in the higher hematocrit *** higher RDW group had a worse OS and DFS than did the lower RDW group for tumor node metastasis(TNM)stage I(OS,P<0.05;DFS,P=0.001)and stage II(OS,P=0.004;DFS,P=0.01)than the lower RDW group;the lower hematocrit group had worse OS and DFS for TNM stage II(OS,P<0.05;DFS,P=0.001)and stage III(OS,P=0.001;DFS,P=0.001)than did the higher hematocrit *** hematocrit was an independent risk factor for OS[P=0.017,hazard ratio(HR)=1.256,95%confidence interval(CI):1.041-1.515]and DFS(P=0.035,HR=1.194

关键词： Colorectal cancer Red blood cell distribution width Survival Short-term outcomes

Chinese Medicine Combined with Adjuvant Chemotherapy for Improving Myelosuppression in Colorectal Cancer Patients:A Systematic Review and Network Meta-Analysis

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Chinese Journal of Integrative Medicine 2024年第7期30卷 643-652页

作者： LI Rui ZHANG Tong YAN Shao-hua YAN Yun-zi DING Ya-cong wang Yan-song YANG Yu-fei Department of Oncology China Academy of Chinese Medical SciencesXiyuan HospitalBeijing100091China Department of Oncology Dongfang Hospital Beijing University of Chinese MedicineBeijing100078China Graduate School Beijing University of Chinese MedicineBeijing100029China

Objective To assess the effectiveness of Chinese herbal medicine(CHM)combined with adjuvant chemotherapy on myelosuppression for colorectal cancer(CRC)patients using network meta-analysis(NMA).Methods Literature searches in both international(PubMed,Embase,Web of Science,and Cochrane Library)and Chinese(China Science and Technology Journal Database,Wanfang Data,China National Knowledge Infrastructure)databases for relevant randomized controlled trials(RCTs)were conducted from inception until October 10,*** included RCTs of patients who received CHM combined with chemotherapy,including FOLFOX,XELOX,FOLFIRI,and other relevant regimens in the CHM treatment *** outcomes included the incidence of myelosuppression,leukopenia,hemoglobin reduction,and *** reviewers independently screened the databases,extracted the data,and assessed the risk of bias and credibility of *** 5.4.1 software and STATA 14.0 were used to perform the *** A total of 31 RCTs were included,published from 2008 to 2021 in *** these,2,314 participants comparing the following 9 CHMs were identified:Shengbai Recipe(SBR),Bazhen Decoction(BZD),Jianpi Jiedu Recipe(JJR),Jianpi Recipe(JR),Compound Cantharis Capsule(CCC),Zaofan Pill(ZFP),Guilu Erxian Gel(GL),Buzhong Tiaogan Decoction(BZ),and Qiamagu Capsule(QM).The results of NMA found an indirect *** on the surface under the cumulative ranking curve(SUCRA),the ZFP+chemotherapy group had the lowest incidence of myelosuppression,with an odds ratio(OR)of 0.08[95%confidence interval(CI):0.01,0.76],whereas the GL+chemotherapy group had the lowest incidence of leukopenia,hemoglobin reduction,and thrombocytopenia,with an OR of 5.25(95%CI:2.41,11.43),4.66(95%CI:2.23,9.72),and 0.27(95%CI:0.13,0.54),***,BZD+chemotherapy could alleviate leukopenia,hemoglobin reduction,and thrombocytopenia(P<0.01).Pairwise comparison showed that there was no difference in the efficacy among the 8 CHMs+c

关键词： Chinese herbal medicine colorectal cancer network meta-analysis systematic review myelosuppression chemotherapy

Reinfection and Risk Factors of SARS-CoV-2 during an Omicron Wave 2022 in Shanghai

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Biomedical and Environmental Sciences 2024年第2期37卷 204-209页

作者： wang Pei Qin wang Xiao Hang wang Jian SHI Zhi Wen CHU Dong Mei wang Zhi fei ZHANG Mu Bai LIU Wei ZHOU zi Jie XIE Wei Fen Department of Gastroenterology Changzheng HospitalNaval Medical UniversityShanghai 200003China Health examination center Changzheng HospitalNaval Medical UniversityShanghai 200003China

Multiple waves of coronavirus disease 2019(COVID-19) outbreaks have affected numerous countries worldwide. The first case of SARS-CoV-2 reinfection was reported in Hong Kong in August 2020^([1]), leading to increased interest in the effectiveness of natural immunity acquired from primary infection. While data reports vary across countries, all findings indicate that prior SARS-CoV-2 infection provides substantial protection against reinfection^([2]). However, natural immunity from infection with previous non-Omicron or early Omicron sub-lineages offers lower levels of protection against Omicron reinfection, with rates below 60%^([3]) and approximately 75%[4], respectively.

关键词： immunity infection Omi