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16篇 您的检索式:作者名="FAN Lele"
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1Heterojunction Incorporating Perovskite and Microporous Metal–Organic Framework Nanocrystals for Efficient and Stable Solar Cells显示文摘In this paper,we present a facile approach to enhance the efficiency and stability of perovskite solar cells(PSCs)by incorporating perovskite with microporous indium-based metal–organic framework[In12O(OH)16(H2O)5(btc)6]n(In-BTC)nanocrystals and forming heterojunction light-harvesting layer.The interconnected micropores and terminal oxygen sites of In-BTC allow the preferential crystallization of perovskite inside the regular cavities,endowing the derived films with improved morphology/crystallinity and reduced grain boundaries/defects.Consequently,the In-BTC-modified PSC yields enhanced fill factor of 0.79 and power conversion efficiency(PCE)of 20.87%,surpassing the pristine device(0.76 and 19.52%,respectively).More importantly,over 80%of the original PCE is retained after 12 days of exposure to ambient environment(25°C and relative humidity of^65%)without encapsulation,while only about 35%is left to the pristine device.Xuesong Zhou Lele Qiu Ruiqing Fan Jian Zhang Sue Hao Yulin Yang 2020Nano-Micro Letters2020,12,6:3
2Near-Infrared-Excitable Organic Ultralong Phosphorescence through Multiphoton Absorption显示文摘Organic ultralong room-temperature phosphorescence(OURTP)with a long-lived triplet excited state up to several seconds has triggered widespread research interests,but most OURTP materials are excited by only ultraviolet(UV)or blue light owing to their unique stabilized triplet-and solid-state emission feature.Here,we demonstrate that near-infrared-(NIR-)excitable OURTP molecules can be rationally designed by implanting intra/intermolecular charge transfer(CT)characteristics into Haggregation to stimulate the efficient nonlinear multiphoton absorption(MPA).The resultant upconverted MPA-OURTP show ultralong lifetimes over 0.42 s and a phosphorescence quantum yield of~37%under both UV and NIR light irradiation.Empowered by the extraordinary MPA-OURTP,novel applications including two-photon bioimaging,visual laser power detection and excitation,and lifetime multiplexing encryption devices were successfully realized.These discoveries illustrate not only a delicate design map for the construction of NIR-excitable OURTP materials but also insightful guidance for exploring OURTP-based nonlinear optoelectronic properties and applications.Ye Tao Lele Tang Qi Wei Jibiao Jin Wenbo Hu Runfeng Chen Qingqing Yang Huanhuan Li Ping Li Guichuan Xing Quli Fan Chao Zheng Wei Huang 2020Research2020,,1:1
3Depressed transition temperature of WxV1–xO2 mechanistic insights from the X-ray absorption fine structure(XAFS) spectroscopy显示文摘WU Yanfei FAN Lele HUANG Weifeng 2014Phys Chem C hem Phys2014,16,17:1
4Comprehensive characterization of CRC with germline mutations reveals a distinct somatic mutational landscape and elevated cancer risk in the Chinese population显示文摘Objective:Hereditary colorectal cancer(CRC)accounts for approximately 5%–10%of all CRC cases.The full profile of CRC-related germline mutations and the corresponding somatic mutational profile have not been fully determined in the Chinese population.Methods:We performed the first population study investigating the germline mutation status in more than 1,000(n=1,923)Chinese patients with CRC and examined their relationship with the somatic mutational landscape.Germline alterations were examined with a 58-gene next-generation sequencing panel,and somatic alterations were examined with a 605-gene panel.Results:A total of 92 pathogenic(P)mutations were identified in 85 patients,and 81 likely pathogenic(LP)germline mutations were identified in 62 patients,accounting for 7.6%(147/1,923)of all patients.MSH2 and APC was the most mutated gene in the Lynch syndrome and non-Lynch syndrome groups,respectively.Patients with P/LP mutations had a significantly higher ratio of microsatellite instability,highly deficient mismatch repair,family history of CRC,and lower age.The somatic mutational landscape revealed a significantly higher mutational frequency in the P group and a trend toward higher copy number variations in the non-P group.The Lynch syndrome group had a significantly higher mutational frequency and tumor mutational burden than the nonLynch syndrome group.Clustering analysis revealed that the Notch signaling pathway was uniquely clustered in the Lynch syndrome group,and the MAPK and cAMP signaling pathways were uniquely clustered in the non-Lynch syndrome group.Population risk analysis indicated that the overall odds ratio was 11.13(95%CI:8.289–15.44)for the P group and 20.68(95%CI:12.89–33.18)for the LP group.Conclusions:Distinct features were revealed in Chinese patients with CRC with germline mutations.The Notch signaling pathway was uniquely clustered in the Lynch syndrome group,and the MAPK and cAMP signaling pathways were uniquely clustered in the non-Lynch syndrome group.Patients with P/LP germline mutations exhibited higher CRC risk.Jianfei Yao Yunhuan Zhen Jing Fan Yuan Gong Yumeng Ye Shaohua Guo Hongyi Liu Xiaoyun Li Guosheng Li Pan Yang Xiaohui Wang Danni Liu Tanxiao Huang Huiya Cao Peisu Suo Yuemin Li Jingbo Yu Lele Song 2022Cancer Biology & Medicine2022,19,5:1
5Microtubule-bundling protein Spef1 enables mammalian ciliary central apparatus formation显示文摘Cilia are cellular protrusions containing nine microtubule(MT)doublets and function to propel cell movement or extracellular liquid flow through beating or sense environmental stimuli through signal transductions.Cilia require the central pair(CP)apparatus,consisting of two CP MTs covered with projections of CP proteins,for planar strokes.How the CP MTs of such‘9+2’cilia are constructed,however,remains unknown.Here we identify Spef1,an evolutionarily conserved microtubule-bundling protein,as a core CP MT regulator in mammalian cilia.Spef1 was selectively expressed in mammalian cells with 9+2 cilia and specifically localized along the CP.Its depletion in multiciliated mouse ependymal cells by RNAi completely abolished the CP MTs and markedly attenuated ciliary localizations of CP proteins such as Hydin and Spag6,resulting in rotational beat of the ependymal cilia.Spef1,which binds to MTs through its N-terminal calponin.homologous domain,formed homodimers through its C-terminal coiled coil region to bundle and stabilize MTs.Disruption of either the MT-binding or the dimerization activity abolished the ability of exogenous Spef1 to restore the structure and functions of the CP apparatus.We propose that Spefl bundles and stabilizes central MTs to enable the assembly and functions of the CP apparatus.Jianqun Zheng Hao Liu Lei Zhu Yawen Chen Huijie Zhao Wei Zhang Fan Li Lele Xie Xiumin Yan Xueliang Zhu 2019Journal of Molecular Cell Biology2019,11,1:1
6Self-assembly of DNA Nanostructures via Bioinspired Metal Ion Coordination显示文摘Despite a growing interest in DNA nanomaterials,their simple synthesis remains a challenge.A simple and general strategy for constructing DNA-based nanomaterials by metal ion coordination is reported.The me-tal-DNA nanoparticles(NPs)could be synthesized with DNA molecules of diverse sequence and various metal ions of intrinsic property,resulting in multifunctional NPs with the combined advantages of both inorganic and DNA building blocks.It is demonstrated that the hybrid metal-DNA NPs could be engineered for magnetic resonance and luminescence imaging,encapsulation of multifarious nucleic acids with controlled ratio,and co-assembly with small drug molecules.Furthermore,because these metal-DNA NPs exhibited enhanced cellular uptake compared to free synthetic DNA,they hold potential for applications in diagnostics and therapeutics.WANG Congli DI Zhenghan FAN Zetan LI Lele 2020Chemical Research in Chinese Universities2020,36,2:0
7The Jidong Eye Cohort Study:objectives,design,and baseline characteristics显示文摘Background:To describe the objective,design and baseline characteristics of the Jidong Eye Cohort Study(JECS),a community-based cohort in China based on etiology,imaging and biomarkers.The JECS will clarify the pathogenesis of visual impairment and status of ocular indicators in the occurrence and progression of cardiocerebrovascular and neurological diseases.Methods:Between August 2019 and January 2020,the JECS recruited consecutive participants aged 18 years and older from the Jidong communities in China.The demographic and clinical characteristics were collected by trained site personnel via face-to-face interviews.The relevant biological samples were also collected.The participants underwent comprehensive ophthalmic examination,such as retinal photography and optical coherence tomography(OCT)angiography.The following outcomes were measured annually:ocular vascular abnormality,optic nerve degeneration,cardiovascular diseases(CVD)and neurological diseases.The study will be performed until 2024.Results:Among 3377 participants,the average age was 45.0±12.5 years and 1809(53.6%)were women.Hypertension occurred in 825 individuals(25.0%),diabetes in 258(7.7%),hyperglycemia in 474(14.2%),and a CVD history in 100(3.0%).The mean best-corrected visual acuity was 0.1 logMAR in the recruited subjects.The average OCT signal index was 8.2±1.2.Additionally,the mean vessel densities for the entire measured area were 46.4%and 50.8%for the superficial and deep vascular complex,respectively.Mean area and perimeter of foveal avascular zone was 0.3 mm2 and 2.3 mm.Conclusions:The JECS is a large community-based prospective cohort in North China.Rich data collected from this study will provide the opportunity to identify risk factors,imaging,and biomarkers of visual impairment(either ocular vascular anomalies or optic nerve degeneration)and to evaluate their associations with CVD and neurological diseases.Kai Yang Lele Cui Guoyun Zhang Xianwei Wang Xiaoxuan Zhu Yunfan Xiao Binbin Su Daiyu Song Xinyao Zhang Yang Zheng Fan Lu Jia Qu Ming Li 2020Eye and Vision2020,7,1:0
8Multiple-model GWAS identifies optimal allelic combinations of quantitative trait loci for malic acid in tomato显示文摘Malic acid(MA)is an important flavor acid in fruits and acts as a mediator in a series of metabolic pathways.It is important to understand the factors affecting MA metabolism for fruit flavor improvement and to understand MA-mediated biological processes.However,themetabolic accumulation of MA is controlled by complex heredity and environmental factors,making it difficult to predict and regulate the metabolism of MA.In this study,we carried out a genome-wide association study(GWAS)on MA using eight milestone models with two-environment repeats.A series of associated SNP variations were identified from the GWAS,and 15 high-confidence annotated geneswere further predicted based on linkage disequilibrium and lead SNPs.The transcriptome data of candidate geneswere explored within different tomato organs as well as various fruit tissues,and suggested specific expression patterns in fruit pericarp.Based on the genetic parameters of population differentiation and SNP distribution,tomato MA content has been more influenced by domestication sweeps and less affected by improvement sweeps in the long-term history of tomato breeding.In addition,genotype×environment interaction might contribute to the difference in domestication phenotypic data under different environments.This study provides new genetic insights into how tomato changed its MA content during breeding and makes available function-based markers for breeding by marker-assisted selection.Wenxian Gai Fan Yang Liangdan Yuan Saeed ul Haq Yaru Wang Ying Wang Lele Shang Fangman Li Pingfei Ge Haiqiang Dong Jinbao Tao Fei Wang Xingyu Zhang Yuyang Zhang 2023Horticulture Research2023,10,4:0
9Study on Multi-Scale Tensile Strength and Tensile Strain of Calcium Silicate Hydrate Layered Nanocomposites Under External Physical Field显示文摘Calcium silicate hydrate(C-S-H)is the mainly strength source of cement-based materials,but there is little basic research.In this paper,molecular dynamics method is applied to analyze the multi-scale tensile strength and tensile strain of C-S-H layered materials under the condition of external physical fields(temperature and strain rate).The results show that the tensile strength and strain of C-S-H model decrease with temperature raises.The temperature(from 1 K to 600 K)has obvious influence on the tensile strain and strength of C-S-H layered materials.In addition,at(0.00025 ps^(-1)-0.001 ps^(-1)),the tensile strain and strength of C-S-H layered materials are less sensitive to strain rate.The whole model is closer to a 3-dimensional deformation.However,at(0.001 ps^(-1)-0.005 ps^(-1)),the dynamic load effect begins to increase,and the work done by the load per unit time increased.The tensile strain and strength of C-S-H layered materials indicates intensified by the change of strain rate.The energies are randomly distributed in the system,not concentrated in a certain area.Lei FAN Lele ZHANG 2023Research and Application of Materials Science2023,5,1:0
10Consecutive hybrid mechanism boosting Na+storage performance of dual-confined SnSe2 in N,Se-doping double-walled hollow carbon spheres显示文摘Rationally designed hierarchical structures and heteroatomic doping of carbon are effective strategies to enhance the stability and electrical conductivity of materials.Herein,SnSe_(2)flakes were generated in the double-walled hollow carbon spheres(DWHCSs),in which N and Se atoms were doped in the carbon walls,to construct SnSe_(2)@N,Se-DWHCSs by confined growth and in-situ derivatization.The N and Sedoped DWHCSs can effectively limit the size increase of SnSe_(2),promote ion diffusion kinetics,and buffer volume expansion,which can be proved by electron microscope observation and density functional theory calculation.Consequently,the SnSe_(2)@N,Se-DWHCSs as an anode material for sodium ion batteries(SIBs)demonstrated a distinguished reversible capacity of 322.8 mAh g^(-1)at 5 A g^(-1)after 1000 cycles and a superior rate ability of 235.3 m Ah g^(-1)at an ultrahigh rate of 15 A g^(-1).Furthermore,the structure evolution and electrochemical reaction processes of SnSe2@N,Se-DWHCSs in SIBs were analyzed by exsitu methods,which confirmed the consecutive hybrid mechanism and the phase transition process.Xiaoyu Wu Zhenshan Yang Lin Xu JianHua Wang Lele Fan Fanjie Kong Qiaofang Shi Yuanzhe Piao Guowang Diao Ming Chen 2022Journal of Energy Chemistry2022,31,11:0
11New insights into the dispersion history and adaptive evolution of taxon Aegilops tauschii in China显示文摘Aegilops tauschii,the wild progenitor of wheat D-genome and a valuable germplasm for wheat improvement,has a wide natural distribution from eastern Turkey to China.However,the phylogenetic relationship and dispersion history of Ae.tauschii in China has not been scientifically clarified.In this study,we genotyped 208 accessions(with 104 in China)using dd RAD sequencing and 55K SNP array,and classified the population into six sublineages.Three possible spreading routes or events were identified,resulting in specific distribution patterns,with four sublineages found in Xinjiang,one in Qinghai,two in Shaanxi and one in Henan.We also established the correlation of SNP-based,karyotypebased and spike-morphology-based techniques to demonstrate the internal classification of Ae.tauschii,and developed consensus dataset with 1245 putative accessions by merging data previously published.Our analysis suggested that eight inter-lineage accessions could be assigned to the putative Lineage 3and these accessions would help to conserve the genetic diversity of the species.By developing the consensus phylogenetic relationships of Ae.tauschii,our work validated the hypothesis on the dispersal history of Ae.tauschii in China,and contributed to the efficient and comprehensive germplasm-mining of the species.Hao Li Fang Nie Lele Zhu Menghua Mu Ruixiao Fan Jingyao Li Aaqib Shaheen Yifan Liu Can Li Wenjuan Liu Huihui Liang Xinpeng Zhao Shenglong Bai Guanghui Guo Zheng Li Yiheng Hu Yuannian Jiao Jonathan Adams Assaf Distelfeld Guiling Sun Suoping Li Yun Zhou Chun-Peng Song 2022Journal of Genetics and Genomics2022,49,3:0
12Cyasterone inhibits IL-1β-mediated apoptosis and inflammation via the NF-κB and MAPK signaling pathways in rat chondrocytes and ameliorates osteoarthritis in vivo显示文摘Osteoarthritis is a prevalent global joint disease,which is characterized by inflammatory reaction and cartilage degradation.Cyasterone,a sterone derived from the roots of Cyathula officinalis Kuan,exerts protective effect against several inflammationrelated diseases.However,its effect on osteoarthritis remains unclear.The current study was designed to investigate the potential antiosteoarthritis activity of cyasterone.Primary chondrocytes isolated from rats induced by interleukin(IL)-1βand a rat model stimulated by monosodium iodoacetate(MIA)were used for in vitro and in vivo experiments,respectively.The results of in vitro experiments showed that cyasterone apparently counteracted chondrocyte apoptosis,increased the expression of collagen II and aggrecan,and restrained the production of the inflammatory factors inducible nitric oxide synthase(iNOS),cyclooxygenase-2(COX-2),a disintegrin and metalloproteinase with thrombospondin motifs-5(ADAMTS-5),metalloproteinase-3(MMP-3),and metalloproteinase-13(MMP13)induced by IL-1βin chondrocytes.Furthermore,cyasterone ameliorated the inflammation and degenerative progression of osteoarthritis potentially by regulating the nuclear factor kappa B(NF-κB)and mitogen-activated protein kinase(MAPK)pathways.For in vivo experiments,cyasterone significantly alleviated the inflammatory response and cartilage destruction of rats induced by monosodium iodoacetate,where dexamethasone was used as the positive control.Overall,this study laid a theoretical foundation for developing cyasterone as an effective agent for the alleviation of osteoarthritis.TENG Li SHEN Yue QU Yuhan YANG Longfei YANG Yuting JIAN Xi FAN Shengli ZHANG Lele FU Qiang 2023Chinese Journal of Natural Medicines2023,21,2:0
13Few-Atom Copper Catalyst for the Electrochemical Reduction of CO to Acetate:Synergetic Catalysis between Neighboring Cu Atoms显示文摘Single-atom catalysts(SACs)are gaining increasing recognition because of their superior catalytic properties for various reactions.However,the performance of SACs is often limited by the lack of neighboring metal centers to cooperate in catalysis.Herein,a synergetic interaction between neighboring Cu atoms of a few-atom catalyst(FAC)on graphdiyne(GDY)is found to greatly enhance the production of acetate in the CO electroreduction reaction relative to Cu SACs.In a 1.0 M KOH electrolyte,this Cu FAC exhibits an acetate Faradaic efficiency of 53.8±1.5%,an ultrahigh relative purity of up to 97 wt%for liquid products,and excellent stability over 23 h continuous electrolysis at–0.8 V versus reversible hydrogen electrode.Theoretical studies suggest that the intersite catalytic communication between two neighboring metal atoms confined in each pore of GDY facilitates the formation of acetic acid through either stepwise hydrogenation of CH_(2)CO^(*)or the direct reaction of H_(2)Owith CH_(2)CO^(*).Our study demonstrates the unprecedented synergetic catalysis of Cu FAC in promoting the selective CO electroreduction toward acetate production.Weifeng Rong Haiyuan Zou Sha Tan Enyuan Hu Fan Li Chao Tang Hao Dai Shuting Wei Yongfei Ji Lele Duan 2023CCS Chemistry2023,5,5:0
14Study on Cognition of Urban Residents on Haze Control and Their Willingness to Pay:A Case Study of Zhengzhou City and Jiaozuo City显示文摘Residents’payment is an important supplement to the government’s urban haze control costs.In this paper,Zhengzhou City and Jiaozuo City of Henan Province were taken as research objects.Through research methods such as data mining,questionnaire survey and model construction,the residents’cognition on haze control,willingness to pay and its influencing factors were deeply studied.Main research results were as below:residents in Zhengzhou and Jiaozuo have improved their awareness and satisfaction with haze control,but the growth rate was slow.In 2014,2018 and 2021,the expected values of willingness to pay for haze control in Zhengzhou were 79.94,85.52 and 47.20 yuan/month respectively,while they were 62.17,57.77 and 46.96 yuan/month in Jiaozuo City.Residents’haze awareness had the most significant effect on the willingness to pay for haze control,and there was positive correlation(P<0.05).Residents’cognition of haze control was the most important factor affecting their willingness to pay for haze control.Residents’income level and air pollution level had a positive effect on residents’willingness to pay,while residents’confidence in the government had a weak impact on their willingness to pay.Lele DU Xiaoming CHUAI Lu LIU Yanjun HAN Hong WANG Chao FAN 2022Meteorological and Environmental Research2022,13,4:0
15An AND-Gate DNA Nanodevice for Dual Protein-Mediated,Tumor-Specific Imaging显示文摘Sensitive and specific imaging of tumor-associated biomarkers offers an effective way for cancer diagnosis.However,most of the reported imaging probes are limited to the targeting of a single biomarker,which may impair imaging precision.Here,we report an aptamer-based,AND-gate DNA nanodevice that relies on the sequential processing of two tumor-associated proteins to produce a specific fluorescent signal for precise tumor imaging.The DNA nanodevice integrates an AS1411 aptamer to bind cell surface nucleolin for tumor targeting and a DNA sensor to respond to intracellular apurinic/apyrimidinic endonuclease 1 for activatable imaging.We evaluated the performance of the system in both living cells and a tumor-bearing mouse model,and demonstrated its capability in tumor cell-specific imaging.We anticipate that this strategy will accelerate the design of multivariate protein-stimulated probes for tumor diagnosis.Zetan Fan Fangzhi Yu Mingming Yu Lele Li 2023Chinese Journal of Chemistry2023,41,12:0
16Novel perspective in transplantation therapy of mesenchymal stem cells:targeting the ferroptosis pathway显示文摘Ex vivo culture-amplified mesenchymal stem cells(MSCs)have been studied because of their capacity for healing tissue injury.MSC transplantation is a valid approach for promoting the repair of damaged tissues and replacement of lost cells or to safeguard surviving cells,but currently the efficiency of MSC transplantation is constrained by the extensive loss of MSCs during the short post-transplantation period.Hence,strategies to increase the efficacy of MSC treatment are urgently needed.Iron overload,reactive oxygen species deposition,and decreased antioxidant capacity suppress the proliferation and regeneration of MSCs,thereby hastening cell death.Notably,oxidative stress(OS)and deficient antioxidant defense induced by iron overload can result in ferroptosis.Ferroptosis may inhibit cell survival after MSC transplantation,thereby reducing clinical efficacy.In this review,we explore the role of ferroptosis in MSC performance.Given that little research has focused on ferroptosis in transplanted MSCs,further study is urgently needed to enhance the in vivo implantation,function,and duration of MSCs.YUZHU XU PAN FAN LEI LIU XUANFEI XU LELE ZHANG JIADONG WANG YUAO TAO XIAOLONG LI XI LI YUNTAO WANG 2023Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023,24,2:0
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