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| 1 | Nickel and indium core-shell co-catalysts loaded silicon nanowire arrays for efficient photoelectrocatalytic reduction of CO_(2) to formate显示文摘Developing an efficient artificial photosynthetic system for transforming carbon dioxide and storing solar energy in the form of chemical bonds is one of the greatest challenges in modern chemistry.However,the limited choice of catalysts with wide light absorption range,long-term stability and excellent selectivity for CO_(2) reduction makes the process sluggish.Here,a core-shell-structured nonnoble-metal Ni@In co-catalyst loaded p-type silicon nanowire arrays(SiNWs)for efficient CO_(2) reduction to formate is demonstrated.The formation rate and Faradaic efficiency of formate over the Ni@In/SiNWs catalyst reach 58μmol h^(-1) cm^(-2) and 87% under the irradiation of one simulated sunlight(AM 1.5 G,100 mW cm^(-2)),respectively,which are about 24 and 12 times those over the pristine SiNWs.The enhanced photoelectrocatalytic performance for CO_(2) reduction is attributed to the rational combination of Ni capable of effectively extracting the photogenerated electrons and In responsible for the selective activation of CO_(2). | Wenchao Ma Mingcan Xie Shunji Xie Longfu Wei Yichen Cai Qinghong Zhang Ye Wang | 2021 | Journal of Energy Chemistry2021,30,3: | 3 |
| 2 | Investigation of Nb Ox-based volatile switching device with self-rectifying characteristics显示文摘Dear editor,Resistive random access memory(RRAM),one of the most promising emerging non-volatile memory technologies,has been extensively investigated by researchers from both academia and industry due to its fast speed and excellent scalability for storage class memory(SCM)[1-3].To achieve large-scale integration in an RRAM array,each cell needs to contain a nonlinear device to eliminate the sneak path which may lead to false program and read-margin narrowing[2,3].Usually,transistors or selectors are serially connected to RRAM cells to act as the selective elements. | Yichen FANG Zongwei WANG Caidie CHENG Zhizhen YU Teng ZHANG Yuchao YANG Yimao CAI Ru HUANG | 2019 | Science China(Information Sciences)2019,62,12: | 2 |
| 3 | Sutureless primary repair of colonic perforation with a degradable stent in a porcine model of fecal peritonitis显示文摘 | Kun Liu Hong Yu Minghui Zhang Yichen Yu Yifan Wang Xiujun Cai | 2012 | International Journal of Colorectal Disease2012,,12: | 1 |
| 4 | Bioadaptation of implants to In vitro and In vivo oxidative stress pathological conditions via nanotopography-induced FoxO1 signaling pathways to enhance Osteoimmunal regeneration显示文摘Varieties of pathological conditions,including diabetes,are closely related to oxidative stress(OS),but the osseointegration or bioadaptation of implants to OS and the related mechanism remain poorly explored.In this study,the antioxidation and osteoimmune regeneration of titanium implants with micro/nanotopographies were evaluated under H2O2-,lipopolysaccharide(LPS)-and hyperglycemia-mediated cellular OS models and in diabetic rats as a representative animal model of OS.TiO2 nanotube(TNT)coating on titanium implants directly induced superior osteogenic differentiation of bone mesenchymal stem cells(MSCs)and osseointegration compared with microscale sand blasted-acid etched topography(SLA)under OS,attributed to higher superoxide dismutase 2 activity,the neutralization of intracellular reactive oxygen species(ROS),and less apoptosis.Mechanistically,the oxidation resistance on TNT is driven by upregulated forkhead box transcription factor O1(FoxO1),which is abolished after knockdown of FoxO1 via shRNA in MSCs.Indirectly,TNT also alleviates OS in macrophages,therefore inducing a higher portion of the M2 phenotype under OS with increased secretion of the anti-inflammatory cytokine IL-10,further promoting the osseoimmunity capacity compared with SLA.The current study not only suggests the potential application of TiO2 nanotube-coated titanium implants in compromised conditions but also provides a systematic evaluation strategy for the future development of bone biomaterials. | Jingyan Huang Ruoqi Li Jinghong Yang Min Cai Yichen Lee Anxun Wang Bin Cheng Yan Wang | 2021 | Bioactive Materials2021,6,10: | 1 |
| 5 | Reservoir reoperation for fish ecosystem restoration using daily inflows : Case study of Lake Shelbyville 显示文摘 | YANG Yichen CAI Ximing | 2011 | Journal of Water Resources Planning and Management2011,137,6: | 1 |
| 6 | Conversion of CO_(2) to Multi-carbon Compounds over a CoCO_(3) Supported Ru-Pt Catalyst Under Mild Conditions显示文摘The catalytic hydrogenation of CO_(2) to multi-carbon compounds under mild conditions would not only provide value-added products, but also benefit for the reduction of CO_(2) emission if hydrogen derives from renewable energy sources. Herein, we report CoCO3 supported Ru and Pt nano-particles, which could catalyze hydrogenation of CO_(2)to produce higher hydrocarbons(C2-C26) and higher alcohols(C2OH-C6OH) at low temperatures of 80-130℃. The selectivity for C2+ compounds reached 81.1% at 80℃, which was the highest value reported so far. This work provides a promising catalyst for highly selective converting CO_(2)and H2 to C2+ compounds at low temperatures. | HUANG Jin CAI Yichen YU Yulv WANG Yuan | 2022 | Chemical Research in Chinese Universities2022,38,1: | 0 |
| 7 | Comparative Analysis of Epidemiological Features of HIV/AIDS Cases Aged Over and Under 50 Years Old—China,2010-2022显示文摘Introduction:Recent data indicate a year-on-year increase in the proportion of human immunodeficiency virus/acquired immunodeficiency syndrome(HIV/AIDS)cases reported among individuals aged≥50 in China.This study compares the epidemiological characteristics of HIV/AIDS cases in populations above and below 50 years of age.By doing so,it seeks to scrutinize the current epidemiological landscape of HIV within these distinct age cohorts and suggest tailored interventions for each group.Methods:We utilized data from the Chinese HIV/AIDS Comprehensive Response Information Management System for our comparative analysis.Joinpoint regression analysis was employed to assess the trends in standardized detection rates.Results:In China,the number of newly reported HIV/AIDS cases in the 15-49 age group increased from 51,436 in 2010 to 55,397 in 2022,while it increased from 11,751 in 2010 to 51,856 in 2022 in the group aged≥50 years.Recent years have seen a greater proportion and detection rate of HIV/AIDS cases among the≥50 age demographic compared to the 15-49 age group.In 2022,significant statistical differences were observed between males and females in both age cohorts with respect to education,marital status,occupation,mode of transmission,location of diagnosis,and region.Conclusions:The observed trend of a rising proportion of HIV/AIDS cases in individuals aged 50 years and older necessitates heightened attention.It is imperative that we develop and implement interventions specifically designed to prevent and control the transmission of HIV within this demographic. | Yushan Hou Yichen Jin Chang Cai Qianqian Qin Houlin Tang Fan Lyu | 2023 | China CDC weekly2023,5,48: | 0 |
| 8 | An updated constraint on the local stratigraphy at the Chang'E-4 landing site显示文摘The Chang’E-4 mission has been exploring the lunar farside.Two scientific targets of the rover onboard are(1)resolving the possible mineralogy related to the South Pole-Aitken basin and(2)understanding the subsurface processes at the lunar farside.Publications to date that are based on the reflectance spectra and radar data obtained by the rover have shown a persistent inconsistency about the local stratigraphy.To explain both the abnormal surface topography at the landing site and the unexpected radargram observed by the rover,the Alder crater has been frequently reported to be older than the mare basalts at that landing site.However,this argument is not supported by earlier geological mapping nor recent crater statistics.Resolving this controversy is critical for a full understanding of the geological history of the landing area and for correct interpretations of the scientific data returned.Employing detailed crater statistics,rigorous statistical analyses,and an updated crater chronology function,this study is determined to resolve the relative ages of the Alder crater,Finsen crater,and the mare basalts on the floor of Von Kármán.Our results reveal that while background secondaries and local resurfacing have widely occurred in the study area,affecting age determinations,the statistics are significant enough to conclude that the Alder crater is the oldest among the three targets.This independent constraint is consistent with both the crosscutting relationships of different terrains in this area and global stratigraphic mapping.Our results exclude Alder as a possible contributor of the post-mare deposits at the landing site,appealing for a more systematic stratigraphy study to resolve the provenances of these deposits. | YiRen Chang ZhiYong Xiao YiChen Wang ChunYu Ding Jun Cui YuZhen Cai | 2021 | Earth and Planetary Physics2021,5,1: | 0 |
| 9 | mTORC2/RICTOR exerts differential levels of metabolic control in human embryonic,mesenchymal and neural stem cells显示文摘Dear Editor,Stem cells,including pluripotent stem cells and adult stem cells,possess the remarkable capability of being able to selfrenew while at the same time having potential to differentiate into different cell lineages and functionally distinct cell types.Human embryonic stem cells(hESCs)can differentiate into all adult stem cell types,including human mesenchymal stem cells(hMSCs)and human neural stem cells(hNSCs),but can also give rise to all terminally differentiated cell types(Wang et al.,2021a).Through the continuous replenishment of differentiated cells,stem cells support tissue homeostasis and respond to tissue injuries.Given the promising applications of stem cells in cell therapy and regenerative medicine,insights into molecular events underlying stem cell maintenance,self-renewal ability and pluripotency,continue to garner strong interest(Shan et al.,2021).Although metabolic pathways have been implicated in the reciprocal regulations of stem cell self-renewal and differentiation as well as organ homeostatic maintenance(Garcia-Prat et al.,2017),central aspects of how metabolic requirements differ and are regulated across the various types of human stem cells in our body remain enigmatic. | Qun Chu Feifei Liu Yifang He Xiaoyu Jiang Yusheng Cai Zeming Wu Kaowen Yan Lingling Geng Yichen Zhang Huyi Feng Kaixin Zhou Si Wang Weiqi Zhang Guang-Hui Liu Shuai Ma Jing Qu Moshi Song | 2022 | Protein & Cell2022,13,9: | 0 |
| 10 | Molecular ferroelectric/semiconductor interfacial memristors for artificial synapses显示文摘With the burgeoning developments in artificial intelligence,hardware implementation of artificial neural network is also gaining pace.In this pursuit,ferroelectric devices(i.e.,tunneling junctions and transistors)with voltage thresholds were recently proposed as suitable candidates.However,their development is hindered by the inherent integration issues of inorganic ferroelectrics,as well as poor properties of conventional organic ferroelectrics.In contrast to the conventional ferroelectric synapses,here we demonstrated a two-terminal ferroelectric synaptic device using a molecular ferroelectric(MF)/semiconductor interface.The interfacial resistance can be tuned via the polarization-controlled blocking effect of the semiconductor,owing to the high ferroelectricity and field amplification effect of the MF.Typical synaptic features including spike timing-dependent plasticity are substantiated.The introduction of the semiconductor also enables the attributes of optoelectronic synapse and in-sensor computing with high image recognition accuracies.Such interfaces may pave the way for the hardware implementation of multifunctional neuromorphic devices. | Yichen Cai Jialong Zhang Mengge Yan Yizhou Jiang Husnain Jawad Bobo Tian Wenchong Wang Yiqiang Zhan Yajie Qin Shisheng Xiong Chunxiao Cong Zhi-Jun Qiu Chungang Duan Ran Liu Laigui Hu | 2022 | npj Flexible Electronics2022,6,1: | 0 |
| 11 | Cloning and Characterization of EuGID1 in Eucommia ulmoides Oliver显示文摘Gibberellic acid controlled the key developmental processes of the life cycle of landing plants,and regulated the growth and development of plants.In this study,a novel gibberellin receptor gene EuGID1 was obtained from Eucommia ulmoides Oliver.The cDNA of EuGID1 was 1556 bp,and the open reading frame was 1029 bp,which encoded 343 amino acids.EuGID1 had the homology sequence with the hormone-sensitive lipase family.Amino acid sequence alignment confirmed EuGID1 protein had the highest homology with the GID1 protein of Manihot esculenta.EuGID1 was located in the nucleus and cell membrane and had expression in four plant organs.Overexpression of EuGID1 in transgenic Arabidopsis plants promoted plant elongation and increased siliques yield. | Yulu Chen Fen Zhang Ju Cai Yichen Zhao Jiaxue Cui Yan Li | 2022 | Phyton-International Journal of Experimental Botany2022,91,5: | 0 |
| 12 | Integration of biocompatible organic resistive memory and photoresistor for wearable image sensing application显示文摘The integration of multiple functional devices to achieve complex functions has become an essential requirement for future wearable biomedical electronic devices and systems. In this paper, we present a flexible multi-functional device composed of a biocompatible organic polymer resistive random-access memory(RRAM) and a photoresistor for wearable image sensing application. The resistive layer of organic polymer RRAM is composed by polychloro-para-xylylene(parylene-C), which is a flexible, transparent, biocompatibility and chemical stability polymer material. What is more, parylene-C is quite safe to be used within human body as it is a Food and Drug Administration(FDA)-approved material. This organic RRAM shows stable switching characteristics, low operation voltages(3.25 V for set voltage and-0.55 V for reset voltage), low static power consumption, high storage window and good retention properties(>10~4 s).A multi-functional device that can detect the light intensity of incident light and simultaneously store the information in the memory devices for wearable image sensing application was proposed and fabricated by integrating the organic resistive memory and a photoresistor. The threshold of incident light intensity can be easily adjust by changing the external voltage. This device is promising for building wearable electronic systems with various multiple functionalities. | Qingyu CHEN Min LIN Yichen FANG Zongwei WANG Yuchao YANG Jintong XU Yimao CAI Ru HUANG | 2018 | Science China(Information Sciences)2018,61,6: | 0 |
| 13 | Aptamer-Based Antibiotic Electrochemical Detection Platform Using Portable Plastic Gold Electrode and Multichannel Chip显示文摘The development of accurate,rapid and practical electrochemical sensing technology for antibiotic detection has an important application prospect in many fields such as food safety,environmental monitoring,medical and health care.In this research,kanamycin specific DNA aptamer and its partially complementary short chain were self-assembled onto the surface of an integrated portable plastic gold electrode(PGE)by Au-s bond,and a simple kanamycin electrochemical biosensor interface was constructed.At the same time,the epoxy resin channel layer was designed,and the auxiliary instrument was set up independently in the laboratory,which could help to measure and analyze eight groups of samples automatically in turn.The quantitative analysis results showed that in 20 min,the sensor had a good linear relationship between the peak current change of square wave voltammetry and the negative logarithm of kanamycin concentration when kanamycin concentration was in the range of 1-10o0μmol/L,and the detection limit could reach 0.40μmol/L.In addition,the discrimination could be achieved within 5 min in the real-time analysis mode.The sensor had a simple construction method,good selectivity and stability,and could be used for rapid or real-time detection of kanamycin residues in actual water samples,which provided a new direction for the practical detection of kanamycin in environmental watersamples. | Yin Bao Kaiwei Cai Yichen Liu Bingling Li | 2024 | Chinese Journal of Chemistry2024,42,2: | 0 |