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Metal nanoparticles decorated CoFe-(oxy)hydroxysulfides nanosheets fabricated by a general strategy for electrocatalytic water splitting

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Journal of Energy Chemistry 2025年第1期100卷 26-38页

作者： Xiaodong Yang Haochen shen Xiaoming Xiao Zhichao Li Qi Zhou Wei Yang Bin Jiang Yongli Sun Luhong Zhang Zhenhua Yan School of Chemical Engineering and Technology Tianjin University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

This study presents a novel method to fabricate metal-decorated,sulfur-doped layered double hydroxides （M/SLDH） through spontaneous redox and sulfurization *** developed Ag/SLDH and Pt/SLDH catalysts with abundant heterogeneous interfaces and hierarchical nanostructures demonstrated outstanding oxygen evolution reaction （OER） and hydrogen evolution reaction （HER） performance,achieving low overpotentials of 212 and 35 mV at 10 mA cm-2in 1 M KOH,*** both anode and cathode in water splitting,they required only 1.47 V to reach 10 mA cm-2and exhibited high structural robustness,maintaining stability at 1000 mA cm-2for 300 ***-situ Raman analysis revealed that the synergistic effects of metal nanoparticles and S doping significantly promote the transformation into the S-Co1-xFexOOH layer,which serves as the active phase for water ***,ultraviolet photoelectron spectroscopy （UPS） and density functional theory （DFT） analyses indicated that incorporating metal nanoparticles and S doping increase electron density near the Fermi level and reduce reaction energy barriers,thus enhancing intrinsic OER and HER *** study provides a scalable strategy for synthesizing high-performance electrocatalysts for water splitting,with promising potential for broader applications.

关键词： LDH Spontaneous reaction Metal nanoparticles Water splitting

Truxene-based Conjugated Microporous Polymers via Different Synthetic Methods

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Chinese Journal of Polymer Science 2020年第2期38卷 151-157,I0006页

作者： Meng-Yang Wang Qiu-jing Zhang Qiao-Qiao shen Qing-Yin Li shi-Jie Ren College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University

Four truxene-based conjugated microporous polymers(Tr-CMPs)were prepared via different synthetic methods and their structure-property relationships were *** polymer networks have high Brunauer-Emmett-Teller(BET)specific surface areas ranging from 554 m^2·g^–1to 1024 m^2·g^–*** sizes of the CMPs with different linkers are mainly located between 0.60 and 1.96 *** all the Tr-CMPs,TrCMP4 has the highest BET surface area of 1024 m^2·g^–1and exhibits the highest H2 uptake of 0.88 wt%.Tr-CMP2 prepared by Suzuki-Miyaura coupling reaction has the highest photoluminescence quantum yields(PLQYs)of 13.06% and CO2 uptake of 6.25 wt%.

关键词： Conjugated microporous polymers Truxene Photophysical properties Gas sorption

A Neural Circuit Controlling Virgin Female Aggression Induced by Mating-related Cues in Drosophila

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Neuroscience Bulletin 2023年第9期39卷 1396-1410页

作者： Xiaolu Wan Peng shen Kai shi jing Li Fengming Wu Chuan Zhou State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing100101China University of Chinese Academy of Sciences Beijing100049China Institute of Molecular Physiology Shenzhen Bay LaboratoryShenzhen518132China

Females increase aggression for mating opportunities and for acquiring reproductive *** the close relationship between female aggression and mating status is widely appreciated,whether and how female aggression is regulated by mating-related cues remains poorly *** we report an interesting observation that Drosophila virgin females initiate high-frequency attacks toward mated *** identify 11-cis-vaccenyl acetate(cVA),a male-derived pheromone transferred to females during mating,which promotes virgin female *** subsequently reveal a cVA-responsive neural circuit consisting of four orders of neurons,including Or67d,DA1,aSP-g,and pC1 neurons,that mediate cVA-induced virgin female *** also determine that aSP-g neurons release acetylcholine(ACh)to excite pC1 neurons via the nicotinic ACh receptor nAChRα***,beyond revealing cVA as a mating-related inducer of virgin female aggression,our results identify a neural circuit linking the chemosensory perception of mating-related cues to aggressive behavior in Drosophila females.

关键词： Drosophila Aggression Pheromone 11-cis-vaccenyl acetate Acetylcholine Neural circuit

A green method of staining DNA in polyacrylamide gel electrophoresis based on fluorescent copper nanoclusters synthesized in situ

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Nano Research 2015年第8期8卷 2714-2720页

作者： Xiaoli Zhu Hai shi Yalan shen Bin Zhang jing Zhao Genxi Li Laboratory of Biosensing Technology School of Life Sciences Shanghai University Shanghai 200444 China State Key Laboratory of Pharmaceutical Biotechnology Department of Biochemistry Nanjing University Nanjing 210093 China

The safety of nucleic acid staining dyes has long been recognized to be a problem. Extensive efforts have been made to search for alternatives to the most popular but toxic staining dye, ethidium bromide （EtBr）. However, so far no staining method that can be guaranteed to be suffidently safe has been developed. In this paper, we report a green staining method of DNA in polyacrylamide gel electrophoresis, where in situ synthesis of DNA-templated fluorescent copper nanoclusters （CuNCs） in the gel is achieved to make the DNA bands visible under UV light. Moreover, a comprehensive study of the performance of this staining method has been conducted and the experimental results show that it has favorable sensitivity, stability, and usability. Meanwhile, in our animal experiments, the two reagents （copper sulfate and ascorbic acid） as well as the synthesized CuNCs have been proven to be non-toxic in contact with skin. In addition, all the reagents employed in this work are readily available and low cost, and the procedure is simple to carry out. Therefore, this novel staining method based on the in situ synthesis DNA-templated fluorescent CuNCs has many potential applications.

关键词： stainig nucleic acids polyacrylamide gel copper nanoctusters electrophoresis

Spatial-temporal Distribution Characteristics of Global Seismic Clusters and Associated Spatial Factors

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Chinese Geographical Science 2019年第4期29卷 614-625页

作者： YANG jing CHENG Changxiu SONG Changqing shen shi ZHANG Ting NING Lixin Key Laboratory of Environmental Change and Natural Disaster Beijing Normal University Beijing 100875 China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Beijing 100875 China Faculty of Geographical Science Beijing Normal University Beijing 100875 China Center for Geodata and Analysis Beijing Normal University Beijing 100875 China

Earthquakes exhibit clear clustering on the earth. It is important to explore the spatial-temporal characteristics of seismicity clusters and their spatial heterogeneity. We analyze effects of plate space, tectonic style, and their interaction on characteristic of *** on data of earthquakes not less than moment magnitude(M_w) 5.6 from 1960 to 2014, this study used the spatial-temporal scan method to identify earthquake clusters. The results indicate that seismic spatial-temporal clusters can be classified into two types based on duration: persistent clusters and burst clusters. Finally, we analysed the spatial heterogeneity of the two types. The main conclusions are as follows: 1) Ninety percent of the persistent clusters last for 22-38 yr and show a high clustering likelihood;ninety percent of the burst clusters last for 1-1.78 yr and show a high relative risk. 2) The persistent clusters are mainly distributed in interplate zones, especially along the western margin of the Pacific Ocean. The burst clusters are distributed in both intraplate and interplate zones, slightly concentrated in the India-Eurasia interaction zone. 3) For the persistent type, plate interaction plays an important role in the distribution of the clusters’ likelihood and relative risk. In addition, the tectonic style further enhances the spatial heterogeneity. 4) For the burst type,neither plate activity nor tectonic style has an obvious effect on the distribution of the clusters’ likelihood and relative risk. Nevertheless,interaction between these two spatial factors enhances the spatial heterogeneity, especially in terms of relative risk.

关键词： global earthquake spatial-temporal cluster duration spatial heterogeneity plate space tectonic style intersection space

Hashtag Recommendation Using LSTM Networks with Self-Attention

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Computers, Materials & Continua 2019年第9期61卷 1261-1269页

作者： Yatian shen Yan Li Jun Sun Wenke Ding Xianjin shi Lei Zhang Xiajiong shen jing He School of Computer and Information Engineering Henan UniversityKaifeng475000China The Corporate and Investment Bank TechnologyCanary WharfLondonE145JPUK

On Twitter,people often use hashtags to mark the subject of a *** have specific themes or content that are easy for people to *** the increase in the number of tweets,how to automatically recommend hashtags for tweets has received wide *** previous hashtag recommendation methods were to convert the task into a multi-class classification ***,these methods can only recommend hashtags that appeared in historical information,and cannot recommend the new *** this work,we extend the self-attention mechanism to turn the hashtag recommendation task into a sequence labeling *** train and evaluate the proposed method,we used the real tweet data which is collected from *** results show that the proposed method can be significantly better than the most advanced *** with the state-of-the-art methods,the accuracy of our method has been increased 4%.

关键词： Hashtags recommendation self-attention neural networks sequence labeling

Photo‑Energized MoS_(2)/CNT Cathode for High‑Performance Li–CO_(2)Batteries in a Wide‑Temperature Range

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Nano-Micro Letters 2025年第1期17卷 160-175页

作者： Tingsong Hu Wenyi Lian Kang Hu Qiuju Li Xueliang Cui Tengyu Yao Laifa shen Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

Li–CO_(2) batteries are considered promising energy storage systems in extreme environments such as Mars;however,severe performance degradation will occur at a subzero temperature owning to the sluggish reaction ***,a photo-energized strategy adopting sustainable solar energy in wide working temperature range Li–CO_(2) battery was achieved with a binder-free MoS_(2)/carbon nanotube(CNT)photo-electrode as *** unique layered structure and excellent photoelectric properties of MoS_(2) facilitate the abundant generation and rapid transfer of photo-excited carriers,which accelerate the CO_(2) reduction and Li_(2)CO_(3) decomposition upon *** illuminated battery at room temperature exhibited high discharge voltage of 2.95 V and mitigated charge voltage of 3.27 V,attaining superior energy efficiency of 90.2%and excellent cycling stability of over 120 *** at an extremely low temperature of−30℃,the battery with same electrolyte can still deliver a small polarization of 0.45 V by the photoelectric and photothermal synergistic mechanism of MoS_(2)/CNT *** work demonstrates the promising potential of the photo-energized wide working temperature range Li–CO_(2) battery in addressing the obstacle of charge overpotential and energy efficiency.

关键词： Li-CO_(2)batteries Photo-energized Wide operation-temperature Kinetics MoS_(2)

Potential role and therapeutic implications of glutathione peroxidase 4 in the treatment of Alzheimer's disease

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Neural Regeneration Research 2025年第3期20卷 613-631页

作者： Yanxin shen Guimei Zhang Chunxiao Wei Panpan Zhao Yongchun Wang Mingxi Li Li Sun Department of Neurology and Neuroscience Center The First Hospital of Jilin UniversityJilin UniversityChangchunJilin ProvinceChina Cognitive Impairment Center Department of NeurologyThe First Hospital of Jilin UniversityJilin UniversityChangchunJilin ProvinceChina

Alzheimer's disease is an age-related neurodegenerative disorder with a complex and incompletely understood pathogenesis. Despite extensive research, a cure for Alzheimer's disease has not yet been found. Oxidative stress mediates excessive oxidative responses, and its involvement in Alzheimer's disease pathogenesis as a primary or secondary pathological event is widely accepted. As a member of the selenium-containing antioxidant enzyme family, glutathione peroxidase 4 reduces esterified phospholipid hydroperoxides to maintain cellular redox homeostasis. With the discovery of ferroptosis, the central role of glutathione peroxidase 4 in anti-lipid peroxidation in several diseases, including Alzheimer's disease, has received widespread attention. Increasing evidence suggests that glutathione peroxidase 4 expression is inhibited in the Alzheimer's disease brain, resulting in oxidative stress, inflammation, ferroptosis, and apoptosis, which are closely associated with pathological damage in Alzheimer's disease. Several therapeutic approaches, such as small molecule drugs, natural plant products, and non-pharmacological treatments, ameliorate pathological damage and cognitive function in Alzheimer's disease by promoting glutathione peroxidase 4 expression and enhancing glutathione peroxidase 4 activity. Therefore, glutathione peroxidase 4 upregulation may be a promising strategy for the treatment of Alzheimer's disease. This review provides an overview of the gene structure, biological functions, and regulatory mechanisms of glutathione peroxidase 4, a discussion on the important role of glutathione peroxidase 4 in pathological events closely related to Alzheimer's disease, and a summary of the advances in small-molecule drugs, natural plant products, and non-pharmacological therapies targeting glutathione peroxidase 4 for the treatment of Alzheimer's disease. Most prior studies on this subject used animal models, and relevant clinical studies are lacking. Future clinica

关键词： apoptosis ferroptosis inflammation lipid peroxidation natural plant products neurodegenerative disorder neuroprotection oxidative stress small-molecule drugs

Psychosocio-economic impacts of COVID-19 on gastroenterology and endoscopy practice

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Gastroenterology Report 2021年第3期9卷 205-211,I0001页

作者： jing-jing shen Harvard College Harvard UniversityCambridgeMAUSA

Beyond posing a major health crisis,the COVID-19 pandemic has inflicted profound psychological,social,and economic impacts on populations *** quarantines and social isolation have affected the mental health of the wider population,exacerbating other stressors,including fear of the virus and its repercussions,general uncertainty,and financial *** pandemic has challenged the broader delivery of healthcare––ranging from the need to triage limited hospital resources to balancing risk mitigation with maintaining medical *** to gastroenterology,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has not only been associated with complicating extant medical conditions of the gastrointestinal(GI)tract,but has also forced a shift in the practice of gastroenterology by patients,families,and healthcare providers *** gastroenterology field has been required to adapt its practices to minimize the possibility of viral spread while still upholding patient *** practitioners in GI have helped to treat COVID-19 patients,stratified inpatient and outpatient visits and procedures,and shifted to ***,as is the case with much of the general population,healthcare providers working in GI practice or endoscopy have faced personal and professional stressors,mental health difficulties,social isolation,financial pressures,and familial burdens––all of which can take a toll on practitioners and,by extension,the provision of GI care *** article will highlight how the COVID-19 pandemic has affected the psychological wellbeing,social engagement,and economic conditions of the public,healthcare providers,and GI professionals *** for strategies that can continue GI services while maintaining safety for both caregivers and patients are put forth to help uphold critical GI care during this worldwide crisis.

关键词： COVID-19 SARS-CoV-2 psychosocial impact social impact economic impact gastroenterology endoscopy healthcare professionals/providers stress telemedicine