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| 1 | Synthesis of MoX2 (X =Se or S) monolayers with high-concentration 1T'phase on 4H/fcc-Au nanorods for hydrogen evolution显示文摘Controlled synthesis of transition metal dichalcogenide (TMD) monolayers with unusual crystal phases has attracted increasing attention due to their promising applications in electrocatalysis.However,the facile and large-scale preparation of TMD monolayers with high-concentration unusual crystal phase still remains a challenge.Herein,we report the synthesis of MoX2 (X =Se or S) monolayers with high-concentration semimetallic 1T'phase by using the 4H/face-centered cubic (fcc)-Au nanorod as template to form the 4H/fcc-Au@MoX2 nanocomposite.The concentrations of 1T'phase in the prepared MoSe2 and MoS2 monolayers are up to 86% and 81%,respectively.As a proof-of-concept application,the obtained Au@MoS2 nanocomposite is used for the electrocatalytic hydrogen evolution reaction (HER) in acid medium,exhibiting excellent performance with a low overpotential of 178 mV at the current density of 10 mNcm^2,a small Tafel slope of 43.3 mV/dec,and excellent HER stability.This work paves a way for direct synthesis of TMD monolayers with high-concentration of unusual crystal phase for the electrocatalytic application. | Zhengqing Liu Xiao Zhang Yue Gong Qipeng Lu Zhicheng Zhang Hongfei Cheng Qinglang Ma Junze Chen Meiting Zhao Bo Chen Ye Chen Xue-Jun Wu Pengfei Yin Lin Gu Yaping Du Hua Zhang | 2019 | Nano Research2019，12，6： | 3 |
| 2 | Transgenerational analysis of H3K4me3 and H3K27me3 by ChIP-Seq links epigenetic inheritance to metabolism显示文摘Histone methylation is a kind of important epigenetic modification which occurs on the lysine residue or arginine residue of histone tails(Zhang and Reinberg,2001).It takes part in multiple biological processes,including gene expression,genomic stability,stem cell maturity,genetic imprinting,mitosis and development(Fischle et al.,2005).Abnormal histone methylation pattern | Ke An Fengxia Du Hao Meng Guochao Li Minjie Zhang Zongzhi Liu Zitong Zhao Zilong Zhang Di Yu Dong Wang Caiyun Yang Wencui Ma Lin Yuan Meiting Zhou Lili Duan Li Jin Hui Li Yan Zhang Jianzhong Su Jie Qiao Yingli Sun | 2018 | Journal of Genetics and Genomics2018，45，3： | 0 |
| 3 | Dynamically modulated synthesis of hollow metal-organic frameworks for selective hydrogenation reactions显示文摘Hollow metal-organic frameworks(MOFs)have attracted increasing attention in the field of catalysis in recent years due to their unique cavity structure with fast mass-diffusion rates and easily accessible active sites.Here,we report the use of dynamic modulators,which are formed by the in-situ imine condensation reaction of 4-aminobenzoic acid and 4-formylbenzoic acid,to regulate the growth of MOFs to synthesize well-defined hollow thioether functionalized UiO-67(denoted as H-UiO-67-S)single crystals.After supporting Pd nanoparticles,the designed catalysts Pd@H-UiO-67-S show excellent conversion(>99.9%),selectivity(>99.9%),and stability(10 cycles)in the selective hydrogenation of nitrobenzenes with other reducible groups.Density functional theory calculations and the experimental results reveal that Pd nanoparticles not only selectively adsorb the nitro-groups on nitrobenzene,but also restrict the adsorption of the aniline product,due to the interaction of thioether with Pd in the confined pores of H-UiO-67-S,finally result in a significant increase in selectivity of nitro-hydrogenation. | Liyun Xiao Chuanqi Cheng Zhixi Li Chaoyang Zheng Jing Du Meina Song Yue Wan Shaopeng Li Guo Jun Meiting Zhao | 2023 | Nano Research2023，16，8： | 0 |
| 4 | Application of VIGS system to explore the function of common wheat TaADF7显示文摘As an allohexaploid plant,common wheat has a complex gene structure,making it difficult to study its gene function.Virus-induced gene silencing(VIGS)is an important tool for the rapid analysis of plant gene function.In this study,the gene silencing system,namely,barley stripe mosaic virus(BSMV)-VIGS induced by BSMV was used to silence the wheat phytoene desaturase(TaPDS)and actin depolymerization factor(TaADF7)genes and determine the effect of gene silencing on wheat.TaPDS was used as an indicator gene to determine the feasibility of VIGS system,while TaADF7 was used as a test gene to determine its effect on wheat growth.Results showed that the leaves of tobacco and wheat were bleached by the mixture of pCaBS-α,pCaBS-β,and pCaBS-γ::TaPDS,indicating that the TaPDS gene was silenced,and the bleached leaves had physiological activity as determined by trypan blue staining.Therefore,the VIGS system was efficient and available.After the tobacco was treated with pCaBS-α,pCaBS-β,and pCaBS-γ::TaADF7,the viral suspension was obtained.The expression of TaADF7 gene was downregulated after wheat leaves were infected by friction,indicating that the expression of TaADF7 was silenced.Laser confocal scanning microscopy showed that the silencing of TaADF7 enhanced the fluorescence of microfilament skeleton in mesophyll protoplasts and significantly reduced the plant height.Results showed that TaADF7 affected cell division and plant growth by inhibiting microfilament depolymerization.In conclusion,the BSMV-VIGS system was used to silence wheat TaPDS and TaADF7 genes.Bleaching phenomenon was observed in wheat leaves after TaPDS silencing.After TaADF7 silencing,microfilaments in wheat mesophyll cells gathered into coarse bundles,which affected the dynamics of microfilaments and inhibited plant growth. | HUIZE CHEN XINGTIAN JIA HAIYAN RAN JINGRONG NIU MEITING DU | 2022 | BIOCELL2022，46，2： | 0 |
| 5 | Dark Forest Algorithm:A Novel Metaheuristic Algorithm for Global Optimization Problems显示文摘Metaheuristic algorithms,as effective methods for solving optimization problems,have recently attracted considerable attention in science and engineering fields.They are popular and have broad applications owing to their high efficiency and low complexity.These algorithms are generally based on the behaviors observed in nature,physical sciences,or humans.This study proposes a novel metaheuristic algorithm called dark forest algorithm(DFA),which can yield improved optimization results for global optimization problems.In DFA,the population is divided into four groups:highest civilization,advanced civilization,normal civilization,and low civilization.Each civilization has a unique way of iteration.To verify DFA’s capability,the performance of DFA on 35 well-known benchmark functions is compared with that of six other metaheuristic algorithms,including artificial bee colony algorithm,firefly algorithm,grey wolf optimizer,harmony search algorithm,grasshopper optimization algorithm,and whale optimization algorithm.The results show that DFA provides solutions with improved efficiency for problems with low dimensions and outperforms most other algorithms when solving high dimensional problems.DFAis applied to five engineering projects to demonstrate its applicability.The results show that the performance of DFA is competitive to that of current well-known metaheuristic algorithms.Finally,potential upgrading routes for DFA are proposed as possible future developments. | Dongyang Li Shiyu Du Yiming Zhang Meiting Zhao | 2023 | Computers, Materials & Continua2023，，5： | 0 |
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