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MXene-based all-solid flexible electrochromic microsupercapacitor

Microsystems & Nanoengineering 2024年第3期10卷 347-355页

作者： Shanlu Guo Ruihe Zhu Jingwei Chen Weilin Liu Yuxiang Zhang Jianmin Li Haizeng Li College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Materials science and Engineering Ocean University of ChinaQingdao 266100China Optics and Thermal Radiation research Center Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Shenzhen research Institute of Shandong university Shenzhen 518000China State Key Laboratory of Featured Metal Materials and Life Cycle Safety for Composite Structures Guangxi UniversityNanning 530004China

With the increasing demand for multifunctional optoelectronic devices,flexible electrochromic energy storage devices are being widely recognized as promising platforms for diverse ***,simultaneously achieving high capacitance,fast color switching and large optical modulation range is very *** this study,the MXenebased flexible in-plane microsupercapacitor was fabricated via a mask-assisted spray coating *** adding electrochromic ethyl viologen dibromide(EVB)into the electrolyte,the device showed a reversible color change during the charge/discharge *** to the high electronic conductivity of the MXene flakes and the fast response kinetics of EVB,the device exhibited a fast coloration/bleaching time of 2.6 s/2.5 s,a large optical contrast of 60%,and exceptional coloration *** addition,EVB acted as a redox additive to reinforce the energy storage performance;as a result,the working voltage window of the Ti_(3)C_(2)-based symmetric aqueous microsupercapacitor was extended to 1 ***,the device had a high areal capacitance of 12.5 mF cm^(−2)with superior flexibility and mechanical stability and showed almost 100%capacitance retention after 100 bending *** as-prepared device has significant potential for a wide range of applications in flexible and wearable electronics,particularly in the fields of camouflage,anticounterfeiting,and displays.

关键词： capacitance kinetics exceptional

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基于预连接镍链的高应变敏感度动态可调电磁干扰屏蔽弹性体

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science China Materials 2024年第2期67卷 629-641页

作者：卞敬周兴成周翔马林峰朱先军李建民刘淑娟赵强 College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly TechnologyNanjing University of Posts and TelecommunicationsNanjing 210023China State Key Laboratory of Organic Electronics and Information Displays&jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&TelecommunicationsNanjing 210023China

具有动态可调电磁屏蔽性能的电磁干扰屏蔽材料备受关注,但其目前仍然存在制备复杂、厚度大、触发方式不便、调节范围窄等缺点.我们通过将尖刺镍微粒精确地分散到聚二甲基硅氧烷基体中形成预连接的链状结构,制备出了具有可开关电磁屏蔽... 详细信息

具有动态可调电磁屏蔽性能的电磁干扰屏蔽材料备受关注,但其目前仍然存在制备复杂、厚度大、触发方式不便、调节范围窄等缺点.我们通过将尖刺镍微粒精确地分散到聚二甲基硅氧烷基体中形成预连接的链状结构,制备出了具有可开关电磁屏蔽性能的弹性体材料.弹性体在机械拉伸和释放过程中表现出连续和可逆的电磁干扰屏蔽性能.原始弹性体具有良好的阻抗匹配和低介电损耗,允许大部分电磁波通过.拉伸使预连接的短链彼此接触,在内部形成大量的微尺度导电网络,显著增强了电导损耗能力,实现了较强的电磁干扰屏蔽能力.此外,我们通过无线应变传感系统验证了智能电磁干扰屏蔽弹性体的应用潜力,证明了可穿戴智能电磁干扰屏蔽精确监测人体运动的可能性.

关键词： adjustable electromagnetic interference shielding conductive elastomer electromagnetic sensing negative piezoresistivity

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Highly ordered inkjet-printed quantum-dot thin films enable efficient and stable QLEDs with EQE exceeding 23%

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escience 2024年第3期4卷 152-162页

作者： Changting Wei Bo Xu Meng Zhang Zhenhuang Su Jiawei Gu Wenrui Guo Xingyu Gao Wenming Su Zheng Cui Seokwoo Jeon Zhiyong Fan Haibo Zeng MIIT Key Laboratory of Advanced Display Materials and Devices Institute of Optoelectronics&NanomaterialsSchool of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Ningbo Nato New Material Technology Co. LtdNingbo 315600China Shanghai Synchrotron Radiation Facility(SSRF) Zhangjiang LaboratoryShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Mechanical Engineering Jiangsu UniversityZhenjiang 212013China Printable Electronics research Center Nano Devices and Materials DivisionSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Department of Materials science and Engineering Korea UniversitySeoul 02841South Korea Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyHong Kong 999077China

Inkjet-printed quantum dot light-emitting diodes(QLEDs)are emerging as a promising technology for next-generation ***,the progress in fabricating QLEDs using inkjet printing technique has been slower compared to spin-coated devices,particularly in terms of efficiency and *** key to achieving high performance QLEDs lies in creating a highly ordered and uniform inkjet-printed quantum dot(QD)thin *** this study,we present a highly effective strategy to significantly improve the quality of inkjet-printed CdZnSe/CdZnS/ZnS QD thin films through a pressure-assisted thermal annealing(PTA)*** from this PTA process,a high quality QD thin film with ordered packing,low surface roughness,high photoluminescence and excellent electrical property is *** mechanism behind the PTA process and its profound impact on device performance have been thoroughly investigated and ***,a record high external quantum efficiency(EQE)of 23.08%with an impressive operational lifetime(T50)of up to 343,342h@100cdm−2,and a record EQE of 22.43%with T50 exceeding to 1,500,463h@100cdm−2 are achieved in inkjet-printed red and green CdZnSe-based QLEDs,*** work highlights the PTA process as an important approach to realize highly efficient and stable inkjet-printed QLEDs,thus advancing QLED technology to practical applications.

关键词： Inkjet printing Quantum dot light-emitting diode High efficiency Thermal annealing Highly ordered

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Effect of plateletcrit and methylenetetrahydrofolate reductase(MTHFR)C677T genotypes on folic acid efficacy in stroke prevention

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2694-2701页

作者： Yuncong Shi Zhengzhipeng Zhang Binyan Wang Yu Wang Xiangyi Kong Yong Sun Aimin Li Yimin Cui Yan Zhang Jianping Li Yong Huo Hui Huang Cardiovascular Department The Eighth Affiliated HospitalJoint Laboratory of Guangdong-Hong Kong-Macao Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic DiseasesSun Yat-sen UniversityShenzhenChina Shenzhen Evergreen Medical Institute ShenzhenChina Shenzhen Tailored Medical Laboratory ShenzhenChina Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijingChina Department of Neurosurgery The First Affiliated Hospital of Kangda College of Nanjing Medical UniversityLianyungangChina Institute of Clinical Pharmacology Peking University First HospitalBeijingChina Department of Cardiology Peking University First HospitalBeijingChina

Previous studies have shown that low platelet count combined with high plasma total homocysteine(tHcy)increased stroke risk and can be lowered by 73% with folic ***,the combined role of other platelet activation parameters and the methylenetetrahydrofolate reductase(MTHFR)C677T genotypes on stroke risk and folic acid treatment benefit remain to be *** study aimed to investigate if platelet activation parameters and MTHFR genotypes jointly impact folic acid treatment efficacy in first stroke *** were derived from the China Stroke Primary Prevention *** study includes a total of 11,185 adult hypertensive patients with relevant platelet activation parameters and MTHFR genotype *** simultaneously considering both platelet activation parameters(plateletcrit,platelet count,mean platelet volume,platelet distribution width)and MTHFR genotypes,patients with both low plateletcrit(Q1)and the TT genotype had the highest stroke incidence rate(5.6%)in the enalapril *** subgroup significantly benefited from folic acid treatment,with a 66% reduction in first stroke(HR:0.34;95%CI:0.14-0.82;p=0.016).Consistently,the subgroup with low plateletcrit(Q1)and the CC/CT genotype also benefited from folic acid treatment(HR:0.40;95%CI:0.23-0.70;p=0.001).In Chinese hypertensive adults,low plateletcrit can identify those who may greatly benefit from folic acid treatment,in particular,those with the TT genotype,a subpopulation known to have the highest stroke risk.

关键词： prevention treatment MTHFR

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Ferroptosis:Iron-mediated cell death linked to disease pathogenesis

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Journal of Biomedical research 2024年第5期38卷 413-435页

作者： Xiangyu Zhang Yingchao Hu Bingwei Wang Shuo Yang Department of Immunology State Key Laboratory of Reproductive MedicineJiangsu Key Lab of Cancer BiomarkersPrevention and TreatmentCollaborative Innovation Center for Personalized Cancer MedicineGusu Schoolthe Affiliated Wuxi People's Hospital of Nanjing Medical UniversityWuxi People's HospitalWuxi Medical CenterNanjing Medical UniversityNanjingJiangsu 211166China Department of Pharmacology Nanjing University of Chinese MedicineNanjingJiangsu 210023China

Ferroptosis is a pattern of iron-mediated regulatory cell death characterized by oxidative *** molecular regulatory mechanisms are related to iron metabolism,lipid peroxidation,and glutathione ***,some immunological signaling pathways,such as the cyclic GMP-AMP synthase-stimulator of the interferon gene axis,the Janus kinase-signal transducer and activator of transcription 1 axis,and the transforming growth factor beta 1-Smad3 axis,may also participate in the regulation of *** have shown that ferroptosis is significantly associated with many diseases such as cancer,neurodegenerative diseases,inflammatory diseases,and autoimmune *** the pivotal role of ferroptosis-regulating signaling in the pathogenesis of diverse diseases,the development of ferroptosis inducers or inhibitors may have significant clinical potential for the treatment of aforementioned conditions.

关键词： ferroptosis lipid peroxidation molecular regulatory mechanisms ferroptosis-related diseases ferroptosis inducers ferroptosis inhibitors

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Advancing Energy Systems with In-Situ and Operando Surface-Enhanced Raman Scattering Spectroscopy

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CCS Chemistry 2024年第6期6卷 1403-1421页

作者： Haoming Bao Shi Xuan Leong Jaslyn Ru Ting Chen Zhenhai Shi Suli Chen Yan Lv Tianxi Liu In Yee Phang Xing Yi Ling Key Laboratory of Synthetic and Biological Colloids Ministry of EducationInternational Joint Research Laboratory for Nano Energy CompositesSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122 School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological UniversitySingapore 637371

Surface-enhanced Raman scattering spectroscopy(SERS)has emerged as a powerful analytical technique to enable nanoscale investigations of energy *** mini-review focuses on the applications of in-situ and operando SERS in energy-related research,highlighting its unique capabilities and significant contributions to understanding energy storage and conversion *** first introduce the fundamental principles of SERS,key SERS-derived techniques,and commonly employed ***,we delve into the diverse applications of in-situ and operando SERS across various energy systems,encompassing photocatalytic and electrocatalytic systems,fuel cells,solar cells,and ***,we conclude with our perspective on the current challenges and prospects in this *** hope thismini-review serves as an essential overview to guide the design and implementation of in-situ and operando SERS studies of energy systems.

关键词： surface-enhanced Raman scattering spectroscopy in-situ operando energy systems photocatalysis electrocatalysis fuel cells solar cells batteries

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Anchoring CoP nanoparticles on the octahedral CoO by self-phosphating for enhanced photocatalytic overall water splitting activity under visible light

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Chinese Journal of Chemical Engineering 2021年第12期34卷 114-123页

作者： Feng Guo Xiliu Huang Zhihao Chen Haoran Sun Lizhuang Chen School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

Designing an effective and stable composite photocatalyst is of significance for the further realization of practical applications. In this study, a series of CoP/CoO composites are successfully prepared by a straight one-step phosphating method. The reasonable design and controllable preparation of CoP/CoO composite make it exhibit improved photocatalytic performance for overall water splitting and excellent stability under visible light irradiation in comparison with pure CoO, which is derived from the CoP nanoparticles well dispersed on the(111) facets of CoO octahedrons, intimate interface between them and efficiently accelerated of photo-induced electrons from CoO to CoP. This study presents a simple method to design highly-effective composite photocatalysts for overall water splitting to meet the energy demand.

关键词： CoP nanoparticles CoO octahedrons Overall water splitting Catalyst Photochemistry Solar energy

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3-D Thermo-Stress Field in Laminated Cylindrical Shells

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Computer Modeling in Engineering & sciences 2019年第10期121卷 215-247页

作者： Hai Qian Sai-Huen Lo Ding Zhou Yang Yang Faculty of Civil Engineering and Mechanics Jiangsu UniversityZhenjiang212013China Department of Civil Engineering University of Hong KongHong KongChina College of Civil Engineering Nanjing Tech UniversityNanjing210009China.

The temperature and the stress distribution in simply-supported laminated cylindrical shells undergo thermal loads on the surface have been *** solutions of physical quantities including temperature,heat flux,thermal displacement and stress are developed for the cylindrical laminated *** shells are partitioned into more thin *** cylindrical coordinate,analytical expressions for physical quantities inside each layer are *** into account the compatibility of physical quantities at the interfaces,the relations between the outer and the inner layer of the laminated shell can be described with a transfer *** undetermined parameters from the solutions of each layer can be obtained with boundary *** convergence of the solutions to the number of Fourier series terms has been *** accuracy and feasibility of the present method is verified by comparing theoretical results with numerical outcomes due to Finite Element Method(FEM).Finally,the influences of surface temperature,geometrical size and material properties with respects to temperature,thermal stresses and displacement of layered cylindrical shell are worked out in details in a parameter study.

关键词： Laminated cylindrical shells thermo-elasticity analytical solutions transfer matrix

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The induction of PANoptosis in KRAS-mutant pancreatic ductal adenocarcinoma cells by a multispecific platinum complex

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science China Chemistry 2022年第10期65卷 1978-1984页

作者： Xin Yuan Shuren Zhang Xuanmeng Zhong Hao Yuan Dongfan Song Xiaoyu Wang Hanyang Yu Zijian Guo State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringChemistry and Biomedicine Innovation Center(ChemBIC)Nanjing UniversityNanjing 210023China Department of Biomedical Engineering College of Engineering and Applied SciencesChemistry and Biomedicine Innovation Center(ChemBIC)Nanjing UniversityNanjing 210023China

Oncogenic KRAS reprograms pancreatic ductal adenocarcinoma(PDAC) cells to a state that is awfully resistant to *** alternative coping strategy is to trigger a nonapoptotic cell ***,a multi specific platinum complex SEP was constructed by conjugating a quinone derivative seratrodast to a prodrug of ***,SEP-treated KRAS-mutant PDAC cells showed the characteristics of pyroptosis,apoptosis and necroptosis,similar to PANoptosis(a newfound inflammatory cell death).Mechanistically,SEP could enter cancer cells effectively,then damage nuclear DNA,boost mitochondrial superoxide anion radicals and affect various signaling pathways related to redox homeostasis and tumor *** our best knowledge,SEP is the first metal complex,even small molecule,to elicit PANoptosis(pyroptosis,apoptosis and necroptosis) in cancer cells,providing a new strategy to overcome apoptotic resistance of KRAS-mutant PDAC.

关键词： metallodrug pancreatic ductal adenocarcinoma PANoptosis cell death platinum prodrug

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Electronic transport and magnetic performance of Ni-Nb-Zr metallic glasses

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Rare Metals 2017年第11期36卷 894-898页

作者： Hai-Bin Wang Qing Wang Chong-Lin Chen Chuang Dong School of Materials science and Engineering Jiangsu University of Science and Technology Zhenjiang 212003 China School of Materials science and Engineering Dalian University of Technology Dalian 116024 China Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX 78249 USA

The electronic transport and magnetic perfor- mances of Ni-Nb-Zr metallic glasses under low temperature were investigated. X-ray diffraction （XRD） analysis indicates that the Ni-Nb-Zr ribbons prepared by induction melting and melt spinning method have single amorphous phase. The electrical transport property results of these metallic glass alloys indicate that the Ni-Nb-Zr metallic glasses have negative resistivity temperature coefficients （RTC） and low- temperature drift. The negative RTC and corresponding pos- sible values of Fermi energy of Ni-Nb-Zr metallic glasses are interpreted by the extended Ziman-Faber diffraction theory. The magnetic measurements indicate that the magnetic in- tensities of the Ni-Nb-Zr metallic glasses are related to Ni content and atomic sizes while the low temperature has few influences on the magnetic properties.

关键词： Metallic glass Electrical resistance Magneticproperties

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