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17篇 您的检索式:作者名="Leilei Gu"
    题名 作者 年代 出处 被引量
1Performance improvement of solution-processed CdS/CdTe solar cells with a thin compact TiO_2 buffer layer显示文摘The device performance of CdS/CdTe solar cells largely depends on not only the back ohmic contact, but also the conformality of Cd S window layer coating. In order to reduce the light absorption loss in Cd S, the Cd S thickness is usually less than 100 nm. However, pinholes in Cd S and non-conformal coverage of Cd S on transparent conducting oxide layer will cause shunting thus leading to device performance degradation and failure. In this paper, low-temperature and low-cost fabrication methods, i.e., chemical bath deposition and electrochemical deposition, were used to deposit Cd S and Cd Te, respectively. It was found that the yield of device was around 20 % due to shunting. In order to alleviate this problem, a compact layer of TiO2 was inserted between the fluorine-doped tin oxide and Cd S as a buffer layer. The thickness effect of TiO2 was studied and showed that devices with thin(20 nm thickness) TiO2 performed better than the counterparts with thick layers. It was discovered that device yield improved to 80 % and stability in air substantially improved with TiO2 layer.Aashir Waleed Qianpeng Zhang Mohammad Mahdi Tavakoli Siu-Fung Leung Leilei Gu Jin He Xiaoliang Mo Zhiyong Fan 2016Science Bulletin2016,61,1:4
2miR-20a Promotes the Axon Regeneration of DRG Neurons by Targeting Nr4a3显示文摘Dear Editor,The peripheral nervous system(PNS)regenerates more easily after injury than the central nervous system(CNS)[1].Sensory neurons in the L4–L6 dorsal root ganglia(DRGs)extend axons to form the sciatic nerve along with motor axons.The DRG neuron is one of the exceptional mature neurons whose axons can regenerate after injury.Lili Zhao Leilei Gong Ping Li Jing Qin Lingchi Xu Qiyao Wei Huimin Xie Susu Mao Bin Yu Xiaosong Gu Songlin Zhou 2021Neuroscience Bulletin2021,37,4:3
3Perovskite/organic-semiconductor heterojunctions for ultrasensitive photodetection显示文摘Broadband photodetectors with unprecedented responsivity were reported.It widens the application of organometal halide perovskites in highly sensitive,low-cost and flexible photodetectors.The fundamental device physics revealed will have significant impact on the design of future ultrasensitive photodetectors and other optoelectronic devices.Leilei Gu Zhiyong Fan 2017Light(Science & Applications)2017,6,1:3
4Vapor phase fabrication of three-dimensional arrayed BiI3 nanosheets for cost-effective solar cells显示文摘Multilayered photovoltaic absorbers have triggered widespread attention for their unique structure and properties.However,multilayered materials in the randomly oriented polycrystalline thin-film lead to ineffective carrier transport and collection,which hinders the process of achieving high-performance solar cells.Herein,this issue is tackled by producing the three-dimensional(3D)heterojunction BiI3 nanosheets(NSs)solar cells,which embed vertically aligned monocrystalline BiI3 NSs into spiro-OMeTAD.The preferred orientation of BiI3 NSs and large p-n junction areas of 3D heterojunction structure enable a strong light absorption and effective carrier transport and collection,and thus a power conversion efficiency(PCE)of 1.45%was achieved.Moreover,this PCE is the highest ever reported for BiI3 based solar cells to our best knowledge.Moreover,the nonencapsulated device remained 96%of the initial PCE after 24 h continuous one sun illumination at^70%humidity condition,and 82%of the initial PCE after 1-month storage at^30%humidity condition.Yiyi Zhu Qianpeng Zhang Matthew Kam Swapnadeep Poddar Leilei Gu Shijun Liang Pengfei Qi Feng Miao Zhiyong Fan 2020InfoMat2020,2,5:2
5Perspectives on ecological risks of microplastics and phthalate acid esters in crop production systems显示文摘Microplastics(MPs)and phthalate acid esters(PAEs)co-occur as emerging contaminants of global importance.Their abundance in soil is of increasing concern as plastic-intensive practices continue.Mulching with plastic films,inclusion in fertilizers,composts,sludge application,and wastewater irrigation are all major and common sources of MPs and PAEs in soil.Here,we review studies on the concentration and effects of MPs and PAEs in soil.While there is limited research on the interactions between MPs and PAEs in agroecosystems,there is evidence to suggest they could mutually affect soil ecology and plant growth.Therefore,we propose new research into 1)establishing an efficient,accurate,and simple method to quantify different types of microplastics in soils and plants;2)exploring the behavior and understanding the mechanisms of co-transfer,transformation,and interactions with soil biota(especially in vegetable production systems);3)assessing the risk and consequences of combined and discreet impacts of MPs and PAEs on plants and soil biota,and 4)preventing or reducing the transfer of MPs and PAEs into-and within-the food chain.Fang Wang Yu Wang Leilei Xiang Marc Redmile-Gordon Chenggang Gu Xinglun Yang Xin Jiang DamiàBarceló 2022Soil Ecology Letters2022,4,2:1
6Humidity sensors based on ZnO/ TiO2 core/shell nanorod arrays with enhanced sensitivity 显示文摘Gu Leilei Zhang Kaibo Zhou Ying 2011Sensors and Actuators B2011,159,:1
7Humidity sensing properties of bismuth phosphates显示文摘Min Sheng Leilei Gu Roman Kontic Ying Zhou Kaibo Zheng Guorong Chen Xiaoliang Mo Greta R. Patzke 2012Sensors & Actuators: B. Chemical2012,,:1
8The properties of ethanol gas sensor based on Ti doped ZnO nanotetrapods显示文摘Kaibo Zheng Leilei Gu Dalin Sun XiaoLiang Mo Guorong Chen 2009Materials Science & Engineering B2009,,:1
9Developmental Temporal Patterns and Molecular Network Features in the Transcriptome of Rat Spinal Cord显示文摘The molecular network features of spinal cord development that are integral to tissue engineering remain poorly understood in placental mammals,especially in terms of their relationships with vital biological processes such as regeneration.Here,using a large-scale temporal transcriptomic analysis of rat spinal cord from the embryonic stage to adulthood,we show that fluctuating RNA expression levels reflect highly active transcriptional regulation,which may initiate spinal cord patterning.We also demonstrate that microRNAs(miRNAs)and transcriptional factors exhibit a mosaic profile based on their expression patterns,while differential alternative splicing events reveal that alternative splicing may be a driving force for the development of the node of Ranvier.Our study also supports the existence of a negative correlation between innate immunity and intrinsic growth capacity.Epigenetic modifications appear to perform their respective regulatory functions at different stages of development,while guanine nucleotidebinding protein(G protein)-coupled receptors(including olfactory receptors(ORs))may perform pleiotropic roles in axonal growth.This study provides a valuable resource for investigating spinal cord development and complements the increasing number of single-cell datasets.These findings also provide a genetic basis for the development of novel tissue engineering strategies.Jian Yang Lili Zhao Sheng Yi Fei Ding Yumin Yang Yan Liu Yongjun Wang Mei Liu Chengbin Xue Lian Xu Leilei Gong Xinghui Wang Yu Zhang Bin Yu Guo-li Ming Xiaosong Gu 2021Engineering2021,7,11:0
10A Tale of Two“Skewness”:Managerial Epidemic Experience,Probability Weighting and Financial Market Stability显示文摘Under probability weighting,entrepreneurs with skewness preference tend to seek rightskewed and avoid left-skewed risks.We show that Chinese firms managed by CEOs with professional epidemic experience,i.e.,who previously experienced the outbreak of SARS during their tenure as high level executives,have a lower stock price crash risk measured by the negative skewness of stock prices in subsequent periods.In particular,those firms intentionally avoid stock price crashes by adopting more conservative strategies in decisionmaking.Overall,we provide the first evidence on the unintended effect of entrepreneurs'subjective judgments of the probabilities of disease outbreaks on financial market stability.These have long-term implications for the financial system.Gu Leilei Ni Xiaoran Peng Yuchao 2024Social Sciences in China2024,45,1:0
11Stimuli-responsive combination therapy of cisplatin and Nrf2 siRNA for improving antitumor treatment of osteosarcoma显示文摘Cisplatin is a widely applied therapeutics for the treatment of osteosarcoma.However,its clinical applications have been hindered due to low efficacy and bioavailability,and particularly frequent emergence of reactive oxygen species(ROS)-decrease induced drug resistance.The transcription factor NF-E2-related factor 2(Nrf2)is increased in cancer patients and induces poor outcome in osteosarcoma treatment,making it a novel target to improve the efficacy of chemotherapy.Herein,a hyaluronidase-responsive multi-layer liposome(HLCN)for co-delivery of cisplatin and Nrf2 siRNA(siNrf2)is developed.It is composed of Vpr52-96 modified liposome covered with hyaluronic acid(HA).HLCN selectively accumulates in osteosarcoma by targeting tumor-specific CD44,and can be degraded by endosomal hyaluronidase to generate cationic liposome,which promotes the endosomal escape of Vpr52-96,cisplatin and siNrf2.HLCN can effectively decrease Nrf2 level,promote ROS generation,activate itochondrial apoptotic pathway,and consequently enhance anticancer efficacy of cisplatin.Particularly,HLCN shows high cytotoxicity to osteosarcoma cells with an IC50 value of about 1µM,which is four-fold lower than liposomal cisplatin(IC504µM),indicating that Nrf2 silence can significantly improve cisplatin sensitivity in cancer cells.Importantly,HLCN can remarkably inhibit tumor growth in the xenograft osteosarcoma mice with minimal systemic adverse effects.Therefore,this novel stimuli-responsive combination therapy of cisplatin and siNrf2 provides a promising strategy for the treatment of osteosarcoma.Ting-Ting Gu Chengjun Li Yurui Xu Lei Zhang Xue Shan Xinyu Huang Leilei Guo Kerong Chen Xiaojian Wang Haixiong Ge Xinghai Ning 2020Nano Research2020,13,3:0
12Differences in the effects and action modes of gut commensals against dextran sulfate sodium-induced intestinal inflammation显示文摘Inflammatory bowel disease(IBD)is a complex relapsing inflammatory disease in the gut and is driven by complicated host-gut microbiome interactions.Gut commensals have shown different functions in IBD prevention and treatment.To gain a mechanistic understanding of how different commensals affect intestinal inflammation,we compared the protective effects of 6 probiotics(belonging to the genera Akkermansia,Bifidobacterium,Clostridium,and Enterococcus)on dextran sulfate sodium(DSS)-induced colitis in mice with or without gut microbiota.Anti-inflammatory properties(ratio of interleukin(IL)-10 and IL-12)of these strains were also evaluated in an in vitro mesenteric lymph nodes(MLN)co-culture system.Results showed that 4 probiotics(belonging to the species Bifidobacterium breve,Bifidobacterium bifidum,and Enterococcus faecalis)can alleviate colitis in normal mice.The probiotic strains differed in regulating the intestinal microbiota,cytokines(IL-10,IL-1βand interferon(IFN)-γ),and tight junction function(Zonulin-1 and Occludin).By constrast,Akkermansia muciniphila AH39 and Clostridium butyricum FHuNHHMY49T1 were not protective.Interestingly,B.breve JSNJJNM2 with high anti-inflammatory potential in the MLN model could relieve colitis symptoms in antibiotic cocktail(Abx)-treated mice.Meanwhile,E.faecalis FJSWX25M1induced low levels of cytokines in vitro and showed no beneficial effects.Therefore,we provided insight into the clinical application of probiotics in IBD treatment.Dingwu Qu Zhennan Gu Saisai Feng Leilei Yu Fengwei Tian Hao Zhang Wei Chen Qixiao Zhai 2024Food Science and Human Wellness2024,13,3:0
13Development of sustainable and efficient recycling technology for spent Li-ion batteries: Traditional and transformation go hand in hand显示文摘Clean and efficient recycling of spent lithium-ion batteries(LIBs)has become an urgent need to promote sustainable and rapid development of human society.Therefore,we provide a critical and comprehensive overview of the various technologies for recycling spent LIBs,starting with lithium-ion power batteries.Recent research on raw material collection,metallurgical recovery,separation and purification is highlighted,particularly in terms of all aspects of economic efficiency,energy consumption,technology transformation and policy management.Mechanisms and pathways for transformative full-component recovery of spent LIBs are explored,revealing a clean and efficient closed-loop recovery mechanism.Optimization methods are proposed for future recycling technologies,with a focus on how future research directions can be industrialized.Ultimately,based on life-cycle assessment,the challenges of future recycling are revealed from the LIBs supply chain and stability of the supply chain of the new energy battery industry to provide an outlook on clean and efficient short process recycling technologies.This work is designed to support the sustainable development of the new energy power industry,to help meet the needs of global decarbonization strategies and to respond to the major needs of industrialized recycling.Zejian Liu Gongqi Liu Leilei Cheng Jing Gu Haoran Yuan Yong Chen Yufeng Wu 2024Green Energy & Environment2024,9,5:0
14Spatiotemporal Dynamics of the Molecular Expression Pattern显示文摘Nerve regeneration in adult mammalian spinal cord is poor because of the lack of intrinsic regeneration of neurons and extrinsic factors–the glial scar is triggered by injury and inhibits or promotes regeneration.Recent technological advances in spatial transcriptomics(ST)provide a unique opportunity to decipher most genes systematically throughout scar formation,which remains poorly understood.Here,we frst constructed the tissue-wide gene expression patterns of mouse spinal cords over the course of scar formation using ST after spinal cord injury from 32 samples.Locally,we profled gene expression gradients from the leading edge to the core of the scar areas to further understand the scar microenvironment,such as neurotransmitter disorders,activation of the pro-infammatory response,neurotoxic saturated lipids,angiogenesis,obstructed axon extension,and extracellular structure re-organization.In addition,we described 21 cell transcriptional states during scar formation and delineated the origins,functional diversity,and possible trajectories of subpopulations of fbroblasts,glia,and immune cells.Specifcally,we found some regulators in special cell types,such as Thbs1 and Col1a2 in macrophages,CD36 and Postn in fbroblasts,Plxnb2 and Nxpe3 in microglia,Clu in astrocytes,and CD74 in oligodendrocytes.Furthermore,salvianolic acid B,a blood–brain barrier permeation and CD36 inhibitor,was administered after surgery and found to remedy fbrosis.Subsequently,we described the extent of the scar boundary and profled the bidirectional ligand-receptor interactions at the neighboring cluster boundary,contributing to maintain scar architecture during gliosis and fbrosis,and found that GPR37L1_PSAP,and GPR37_PSAP were the most signifcant gene-pairs among microglia,fbroblasts,and astrocytes.Last,we quantifed the fraction of scar-resident cells and proposed four possible phases of scar formation:macrophage infltration,proliferation and diferentiation of scar-resident cells,scar emergence,and scar stationary.Together,these profles delineated the spatial heterogeneity of the scar,confrmed the previous concepts about scar architecture,provided some new clues for scar formation,and served as a valuable resource for the treatment of central nervous system injury.Leilei Gong Yun Gu Xiaoxiao Han Chengcheng Luan Chang Liu Xinghui Wang Yufeng Sun Mengru Zheng Mengya Fang Shuhai Yang Lai Xu Hualin Sun Bin Yu Xiaosong Gu Songlin Zhou 2023Neuroscience Bulletin2023,39,2:0
15Development of a PSD-based photon beam position measurement system显示文摘As an important part of the beam diagnostic system, the synchrotron light beam position measurement has a very high value in the high quality and high stability light source applied research. A new photon beam position monitor based on position-sensitive detector (PSD) has been developed to measure the photon beam position in vertical and horizontal directions at the same time at HLS (Hefei Light Source). The new PBPM based on the PSD has fast response speed, high sensitivity and wide dynamic range. This PBPM system also includes the C4674 signal processing circuit, NI USB-9215 data acquisition device and the LABVIEW data acquisition program. This PBPM system has been calibrated vertically and horizontally on-line, and then has been applied in the beam line B3EA of HLS to measure the position of the synchrotron light. As the results shown, the resolution of the system is better than 3 mm.XIAO Yunyun SUN Baogen GU Liming LU Ping WANG Jigang TANG Leilei YANG Yongliang ZHOU Zeran XU Hongliang 2012Nuclear Science and Techniques2012,23,2:0
16Mechanical properties and strengthening mechanism of silty sands stabilized with steel slag-based geopolymer binder显示文摘Geopolymer binder has the advantages of early strength,fast solidification,high volume stability,and low permeability.It is beneficial to improve the mechanical performance of silty sands,saving cement consumption and being environmentally friendly.However,the strength improvement of silty sand stabilized with steel slag-based geopolymer was significantly controlled by their material composition and technical parameters.This study conducted a series of unconfined compression tests to investigate the material composition of steel slag-based geopolymer binders and their reasonable mixing ratio for silty sand stabilization.The optimum mixing ratio of precursor(steel slag)to alkaline activator(the combination of Na2SiO3 and CaO)and the optimum dosage of steel slag-based geopolymer for silty sand stabilization were explored.The strengthening mechanism of geopolymer-stabilized silty sands was discussed based on microstructural images and elemental concentrations of primary components observed by SEM and EDS.The results show that when the mass ratio of steel slag:Na2SiO3:CaO was 80:35:21,and the steel slag-based geopolymer material was 15%,the silty sand could achieve the best mechanical performance improvement.The microstructural characteristics of geopolymer-stabilized silty sands at different curing ages illustrated that the compactness and integrity of silty sand structures were enhanced over the curing age.The improving cementitious contact among particles and enlarging particle size was responsible for the strength improvement of silty sand.This research can provide a reference for applying steel slag-based geopolymer in silty sand stabilization in engineering practices.Shengnian Wang Zewei Chen Zhijian Wu Leilei Gu Jun Su Zexuan Zhao 2022Emergency Management Science and Technology2022,2,1:0
17Fluorescent Detection of Trace Water in Methanol Based on an AI(III) Chemical Sensor显示文摘Liang Hao Qi-ming Qiu Wen-jie Wang Leilei Gu Hui Li 2016Chinese Journal of Chemistry2016,34,11:0
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