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45篇 您的检索式:作者名="Mengmeng Hu"
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1Isolation,characterization,and phylogenic analysis of three new severe fever with thrombocytopenia syndrome bunyavirus strains derived from Hubei Province,China显示文摘Hubei Province is a major epidemic area of severe fever with thrombocytopenia syndrome bunyavirus(SFTSV) in China. However, to date, a few SFTSV strains have been isolated from Hubei Province, preventing effective studies of epidemic outbreaks. Here, we report three confirmed patients(2015–2016) with typical symptoms of severe fever with thrombocytopenia syndrome disease(SFTS) who were farmers resident in different regions in Hubei Province. Three new SFTSV strains were isolated from the serum samples of each patient. Characterization of viral growth properties showed that there were no significant differences in virus production. All strains were completely sequenced, and phylogenetic analysis showed that unlike the other strains from Hubei province, which belonged to the SFTSV C3 genotype, one of the three strains belonged to the SFTSV C2 genotype. These results suggested that multiple SFTSV genotypes have been circulating in Hubei Province, providing insights into SFTSV evolution and improving our understanding of SFTSV prevalence in Hubei Province.Yanfang Zhang Shu Shen Junming Shi Zhengyuan Su Mingyue Li Wenjing Zhang Mengmeng Li Zhihong Hu Cheng Peng Xin Zheng Fei Deng 2017Virologica Sinica2017,32,1:21
2Comparison of the inhibition potentials of icotinib and erlotinib against human UDP-glucuronosyltransferase 1A1显示文摘UDP-glucuronosyltransferase 1A1(UGT1A1) plays a key role in detoxification of many potentially harmful compounds and drugs. UGT1A1 inhibition may bring risks of drug–drug interactions(DDIs), hyperbilirubinemia and drug-induced liver injury. This study aimed to investigate and compare the inhibitory effects of icotinib and erlotinib against UGT1A1, as well as to evaluate their potential DDI risks via UGT1A1 inhibition. The results demonstrated that both icotinib and erlotinib are UGT1A1 inhibitors, but the inhibitory effect of icotinib on UGT1A1 is weaker than that of erlotinib. The IC_(50) values of icotinib and erlotinib against UGT1A1-mediated NCHN-O-glucuronidation in human liver microsomes(HLMs) were 5.15 and 0.68 μmol/L, respectively. Inhibition kinetic analyses demonstrated that both icotinib and erlotinib were non-competitive inhibitors against UGT1A1-mediated glucuronidation of NCHN in HLMs, with the Kivalues of 8.55 and 1.23 μmol/L, respectively. Furthermore, their potential DDI risks via UGT1A1 inhibition were quantitatively predicted by the ratio of the areas under the concentration–time curve(AUC) of NCHN. These findings are helpful for the medicinal chemists todesign and develop next generation tyrosine kinase inhibitors with improved safety, as well as to guide reasonable applications of icotinib and erlotinib in clinic, especially for avoiding their potential DDI risks via UGT1A1 inhibition.Xuewei Cheng Xia Lv Hengyan Qu Dandan Li Mengmeng Hu Wenzhi Guo Guangbo Ge Ruihua Dong 2017Acta Pharmaceutica Sinica B2017,7,6:7
3Micro RNA profiles and potential regulatory pattern during the early stage of spermatogenesis in mice显示文摘Spermatogenesis is a complicated and poorly understood process that relies on the precise regulation of the self-renewal and differentiation of spermatogonia. In many organisms, micro RNAs(mi RNAs) are involved in multiple developmental processes as critical regulators of transcriptional and post-transcriptional gene silencing. This study investigated the expression pattern of mi RNAs in type B spermatogonia cells(BSc) and primary spermatocytes(PSc) of mice, using a high-throughput small RNA sequencing system. The results revealed that the expression levels of Let-7 family mi RNAs were remarkably high in both cell types. Furthermore, the expression levels of mi R-21, mi R-140-3p, mi R-103, mi R-30 a, mi R-101 b and mi R-99 b were decreased during the transformation from BSc to PSc. These mi RNAs target vital genes that participate in apoptosis, cell proliferation and differentiation, junction assembly and cell cycle regulation. These results highlight the indispensable role of mi RNAs in spermatogenesis.LUO MengMeng HAO LiLi HU Fen DONG YaNan GOU LiXia ZHANG WenDian WANG Xin ZHAO YuHui JIA MengChun HU SongNian ZHANG XiuJun 2015Science China(Life Sciences)2015,58,5:6
4Self-powered electrochromic devices with tunable infrared intensity显示文摘Triboelectric nanogenerator(TENG) is an efficient way to convert ambient mechanical energy into electricity to power up portable electronics.In this work,a flexible infrared electrochromical device(IR-ECD)with stable performances was assembled with a TENG for building self-powered infrared detector with tunable intensity.As driven by TENG,the electrochromic device could be operated in the mid-IR region due to the reversible electrochromic reactions.An average infrared reflectance contrast of 46% was achieved in 8–14 lm regions and as well a clear thermal image change can be observed.This work indicates that the TENG-driven infrared electrochromical device has potential for use in self-powered camouflage and thermal control.Jiangman sun xiong pu Chunyan Jiang Chunhua Du Mengmeng Liu Yang Zhang Zhitian Liu Junyi Zhai Weiguo Hu Zhong Lin Wang 2018Science Bulletin2018,63,12:6
5Hierarchically porous carbon/red phosphorus composite for high-capacity sodium-ion battery anode显示文摘Red phosphorus has received remarkable attention as a promising anode material for sodium ion batteries(NIBs) due to its high theoretical capacity. However, its practical application has been impeded by its intrinsic low electronic conductivity and large volume variations during sodiation/desodiation process. Here, we design a composite to confine nanosized red phosphorus into the hierarchically porous carbon(HPC) walls by a vaporization-condensation strategy. The mass loading of P in the HPC/P composite is optimized to deliver a reversible specific capacity of 2,202 m Ah/gpbased on the mass of red P(836 m Ah/gcompositebased on the total composite mass), a high capacity retention over 77% after100 cycles, and excellent rate performance of 929 m Ah/gpat 2 C. The hierarchical porous carbon serves as the conductive networks, downsize the red phosphorus to nanoscale, and provide free space to accommodate the large volume expansions. The suppressed mechanical failure of the red phosphorus also enhances the stability of solid-electrolyte interface(SEI) layer, which is confirmed by the microscopy and impedance spectroscopy after the cycling tests. Our studies provide a feasible approach for potentially viable high-capacity NIB anode.Meng Li Na Feng Mengmeng Liu Zifeng Cong Jiangman Sun Chunhua Du Quanbin Liu Xiong Pu Weiguo Hu 2018Science Bulletin2018,63,15:5
6Composition-dependent micro-structure and photocatalytic performance of g-C_(3)N_(4) quantum dots@SnS2 heterojunction显示文摘Semiconductor combination is one of the most common strategies to obtain high-efficiency photocatalysts;however, the effect mechanism of composition ratio on micro-structure and photocatalytic activity is remaining unclear. In this study, a case of g-C_(3)N_(4) quantum dots@SnS_(2) (CNQDn@SnS_(2)) heterojunction with different ratio of CNQD is used to uncover the origin of optimum and excess composition for photocatalysts. Research on the functional mechanism of the optimum composition shows that 0.8 wt.% CNQD are completely attached to the non-(001) facets of SnS_(2), which benefits the formation of type-II heterojunction, resulting in an optimal pollutant degradation and mineralization efficiency. For the excess composition, both experiments and theoretical calculations confirm that excess CNQD (the part exceeding of 0.8 wt.%) located on the (001) facet of SnS_(2), leading to the type-I band alignment of this heterojunction, which severely restricts the separation of photo-induced charge carriers, and thus reduces their lifetime. This work makes the functional mechanism of composition ratio on micro-structure and photocatalytic activity clearer. Related research results provide a new insight into semiconductor combination study and take an important step toward the rational design of highly active photocatalysts.Sheng-Qi Guo Haijun Zhang Zhenzhong Hu Mengmeng Zhen Bo Yang Boxiong Shen Fan Dong 2021Nano Research2021,14,11:4
7Control Effect of Bacillus cereus CGMCC4348 against Botrytis cinerea and Its Mechanism显示文摘[Objective]The paper was to study antifungal activity and control mechanism of Bacillus cereus CGMCC4348 against Botrytis cinerea,and further find new methods against the disease.[Method]By quantitative bioassay,in vitro experiment and pot test,the antagonistic protein was extracted with ammonium sulfate precipitation fractionation to determine the control efficiency.EC50of B.cereus CGMCC4348 was 6.19 mg/L.Average controlling effect of B.cereus CGMCC4348 on B.cinerea was 75.8%,equal to the control group which was treated by 50 mg/L pyrimethanil.Bacillus cereus CGMCC4348 had good inhibitory effect against B.cinerea.[Conclusion]The paper provides scientific basis for green control technology against solanaceous vegetable diseases.Liang Mengmeng Hu Yonghong Yin Jingjing Yang Wenge Tang Rongrong Zhang Yong Liu Youzhou 2013Plant Diseases and Pests2013,4,5:3
8Properties and Structure of Microcrystal Muscovite Composite Superabsorbent显示文摘Microcrystal muscovite composite superabsorbents(MMCSA) were prepared by water solution polymerization using acrylic acid, acrylamide and itaconic acid as comonomers and microcrystal muscovite as an inorganic additive. Properties, such as water absorbency, salt absorbency, gel strength, water retention capacity and structure of MMCSA characterized by SEM and XRD, were investigated. Water absorbency, salt absorbency, gel strength, water retention capacity and thermostability were enhanced by incorporation of suitable amount of microcrystal muscovite. Water absorption of MMCSA was rapid, requiring 24.55 min to reach 63% of equilibrium absorbency(1218 g/g). Microcrystal muscovite was physically combined into the polymeric network without destroying its polycrystalline structure and microcrystal muscovite composite superabsorbent had some irregular, undulant, and small microporous holes with sheet-like microcrystal muscovite distributed in the polymeric matrix.万涛 XIONG Lei HUANG Runqiu SUN Mengmeng QIN Lili TAN Xuemei HU Junyan 2014Journal of Wuhan University of Technology(Materials Science)2014,29,6:2
9Modeling,analysis,and simulation of X-shape quasi-zero-stiffness-roller vibration isolators显示文摘Existing quasi-zero stiffness(QZS)isolators are reviewed.In terms of their advantages,a novel X-shape QZS isolator combined with the cam-roller-spring mechanism(CRSM)is proposed.Different from the existing X-shape isolators,oblique springs are used to enhance the negative stiffness of the system.Meanwhile,the CRSM is used to eliminate the gravity of the loading mass,while the X-shape structure leaves its static position.The existing QZS isolators are demonstrated and classified according to their nonlinearity mechanisms and classical shapes.It is shown that the oblique spring can realize negative stiffness based on the simplest mechanism.The X-shape has a strong capacity of loading mass,while the CRSM can achieve a designed restoring force at any position.The proposed isolator combines all these advantages together.Based on the harmonic balance method(HBM)and the simulation,the displacement transmissibilities of the proposed isolator,the X-shape isolators just with oblique springs,and the X-shape isolators in the traditional form are studied.The results show that the proposed isolator has the lowest beginning isolation frequency and the smallest maximum displacement transmissibility.However,it still has some disadvantages similar to the existing QZS isolators.This means that its parameters should be designed carefully so as to avoid becoming a bistable system,in which there are two potential wells in the potential energy curve and thus the isolation performance will be worsened.Xiaoye MAO Mengmeng YIN Hu DING Xiaofeng GENG Yongjun SHEN Liqun CHEN 2022Applied Mathematics and Mechanics(English Edition)2022,43,7:2
102020 Roadmap on gas-involved photo-and electro-catalysis显示文摘Green reactions not only provide us chemical products without any pollution,but also offer us the viable technology to realize difficult tasks in normal conditions.Photo-,photoelectro-,and electrocatalytic reactions are indeed powerful tools to help us to embrace bright future.Especially,some gas-involved reactions are extremely useful to change our life environments from energy systems to liquid fuels and cost-effective products,such as H2 evolution(H2 production),02 evolution/reduction,CO2 reduction,N2 reduction(or N2 fixation) reactions.We can provide fuel cells clean H2 for electric vehicles from H2 evolution reaction(HER),at the same time,we also need highly efficient 02 reduction reaction(ORR) in fuel cells for improving the reaction kinetics.Moreover,we can get the clean oxidant O2 from water through O2 evolution reaction(OER),and carry out some reactions without posing any pollution to reaction systems.Furthermore,we can translate the greenhouse gas CO2 into useful liquid fuels through CO2 reduction reaction(CRR).Last but not the least,we can get ammonia from N2 reduction reaction(NRR),which can decrease energy input compared to the traditional Hubble process.These reactions,such as HER,ORR,OER,CRR and NRR could be realized through solar-,photoelectro-and electro-assisted ways.For them,the catalysts used play crucial roles in determining the efficiency and kinds of products,so we should consider the efficiency of catalysts.However,the cost,synthetic methods of catalysts should also be considered.Nowadays,significant progress has been achieved,however,many challenges still exist,reaction systems,catalysts underlying mechanisms,and so on.As extremely active fields,we should pay attention to them.Under the background,it has motivated us to contribute with a roadmap on ’GasInvolved Photo-and Electro-Catalysis’.Yulu Yang Yang Tang Haomin Jiang Yongmei Chen Pingyu Wan Maohong Fan Rongrong Zhang Sana Ullah Lun Pan Ji-Jun Zou Mengmeng Lao Wenping Sun Chao Yang Gengfeng Zheng Qiling Peng Ting Wang Yonglan Luo Xuping Sun Alexander S.Konev Oleg V.Levin Panagiotis Lianos Zhuofeng Hu Zhurui Shen Qinglan Zhao Ying Wang Nadia Todorova Christos Trapalis Matthew V.Sheridan Haipeng Wang Ling Zhang Songmei Sun Wenzhong Wang Jianmin Ma 2019Chinese Chemical Letters2019,30,12:1
11Rechargeable quasi-solid-state aqueous hybrid Al^(3+)/H^(+) battery with 10,000 ultralong cycle stability and smart switching capability显示文摘Safe and long lifespan batteries facilitate the development of portable electronics and electric vehicles.Owing to the low-cost,naturally abundance,and trivalent charge carrier of aluminum with the highest theoretical volumetric capacity,rechargeable aqueous aluminum-ion-based batteries are considered as promising next-generation secondary batteries.However,traditional electrolytes and frequent collapse of the host structure of electrode materials greatly jeopardize the cycle stability of the batteries.Here,we develop a novel hydrogel-based electrolyte coupled with stable layered intercalation electrodes for the first time to fabricate a highly safe and flexible rechargeable hybrid Al^(3^(+))/H^(+)battery.The as-fabricated hybrid-ion battery(HIB)delivers a high specific capacity of 125 mAh·g^(−1) at 0.1 A·g^(−1) and exhibits an unprecedented super long-term cycling stability with no capacity fading over 10,000 cycles at 2 A·g^(−1).In addition,the hydrogel-based electrolyte possesses smart function of thermoresponsive switching,which can effectively prevent thermal runaway for the batteries.The unprecedented long cycle stability,highly intrinsic safety as well as low-cost indicate that the flexible aqueous HIBs are promising for applications.Hua Wang Panpan Wang Zhenyuan Ji Zhe Chen Jiaqi Wang Wei Ling Jie Liu Mengmeng Hu Chunyi Zhi Yan Huang 2021Nano Research2021,14,11:1
12MiR-130a regulates and dendritic spine MeCP2 neurite outgrowth density by targeting显示文摘Yunjia Zhang Mengmeng Chen Zilong Qiu Keping Hu Warren McGee Xiaoping Chen Jianghong Liu Li Zhu Jane Y. Wu 2016Protein & Cell2016,7,7:1
13Immunogenicity of different recombinant rabbit hemorrhagic disease virus-like particles carrying CD8+ T cell epitope from chicken ovalbumin (OVA)显示文摘Mengmeng Chen Yanhua Song Zhiyu Fan Ping Jiang Bo Hu Jiabin Xue Houjun Wei Fang Wang 2014Virus Research2014,,:1
14Incorporation ofγ-aminobutyric acid and cesium cations to formamidinium lead halide perovskites for highly efficient solar cells显示文摘The stability issue has become one of the main challenges for the commercialization of perovskite solar cells(PSCs).Formamidinium(FA)-based perovskites have shown great promise owing to their improved thermal and moisture stability.However,these perovskites are suffering from phase transition and separation.Here,a method of incorporating of γ-aminobutyric acid(GABA) and cesium cations into FAPbl_(3) is developed to improve the phase stability.It is demonstrated that the crystallinity of α-FAPbl_(3) phase is greatly improved and the phase transition temperature is significantly dropped.The resultant solar cell therefore obtains a champion power conversion efficiency(PCE) of 23.71%,which is one of the highest efficiencies for methylammonium-free PSCs.Furthermore,it shows an impressively enhanced stability under illumination,exhibiting the great potential of FA-based perovskites for efficient and stable solar cells.Yanqiang Hu Yansu Shan Zhaolei Yu Haojie Sui Ting Qiu Shufang Zhang Wei Ruan Qinfeng Xu Mengmeng Jiao Dehua Wang Yunyi Wu Chuanlu Yang Feng Xu 2022Journal of Energy Chemistry2022,31,1:1
15The mechanism of slope instability due to rainfall-induced structural decay of earthquake-damaged loess显示文摘Natural loess slopes are characterized by a strong geological structure,which is an important factor in maintaining slope stability.The magnitude and duration of the earthquake may disturb the soil structure at different levels degrees,locally changing the arrangement between soil particles.The process of rainfall humidification weakens the cementation between soil particles,and the disturbance and humidification change the structural state of the soil,which in turn causes sliding of the slope along with the decay of soil mechanical properties.As slope instability is often the result of a series of post-earthquake ripple effects,it is of great scientific significance to study the mechanism of slope instability due to the structural decay of earthquake-damaged loess exacerbated by rainfall.In this paper,the impact of structural decay of loess on slope stability is simulated by GEOSTUDIO software under three conditions:pre-earthquake rainfall,post-earthquake rainfall and earthquake,taking the landslide in Buzi Village,Min County,Gansu Province as an example.The comparative analysis of the calculation results shows that the structural properties of the slope without earthquake disturbance are influenced by infil-tration amount.When it is fully saturated,the structural properties are similar to those of saturated soil,and the safety factor is reduced by 12.9%.In addition,the earthquake intensity and duration have different degrees of structural damage to the soil.When the structure is fully damaged,it is similar to that of remodelled soil,and the safety factor is reduced by 45.84%.Notably,the process of the earthquake and the following humidification generates the most serious damage to the loess structure,with a reduction in the safety factor of up to 56.15%.The quantitative analysis above obviously illustrates that the post-earthquake rainfall causes the most severe damage to structural loess slopes,and the resulting landslide hazard should not be underestimated.Hu Tao Mengmeng Zhang Li Gong Xi Shi Yijie Wang Guoqiang Yang Shaowei Lei 2022Earthquake Research Advances2022,2,3:1
16The enhanced photocatalytic activity and self-cleaning properties of mesoporous Si O2coated Cu-Bi2O3thin films显示文摘Shan Wenjie Hu Yun Zheng Mengmeng 2015Dalton Trans2015,44,:1
17A high-resolution ammonia emission inventory in China显示文摘Huang Xin Song Yu Li Mengmeng Li Jianfeng Huo Qing Cai Xuhui Zhu Tong Hu Min Zhang Hongsheng 2012EN2012,,1:1
18Purificationand characterization of a hyperthermostable Mn-superoxide dismutase from Thermus thermophilus HB27显示文摘LIU Jianguo YIN Mengmeng ZHU Hu 2010?xtremophiles2010,15,2:1
19Equine ANP32 proteins support influenza A virus RNA polymerase activity显示文摘Host ANP32 family proteins are crucial for maintaining the activity of influenza RNA polymerase and play an important role in the cross-species transmission of influenza viruses.To date,the molecular properties of equine ANP32(eqANP32)protein are poorly understood,particularly the mechanisms that affect equine influenza virus(EIV)RNA polymerase activity.Here,we found that there are six alternative splicing variants of equine ANP32A(eqANP32A)with different levels of expression.Further studies showed that these six splicing variants of eqANP32A supported the activity of EIV RNA polymerase to varying degrees,with the variant eqANP32A_X2 having the highest expression abundance and exhibiting the highest support of polymerase activity.Sequence analysis demonstrated that the differences in the N-Cap regions of the six splicing variants significantly affected their N-terminal conformation,but did not affect their ability to bind RNA polymerase.We also demonstrated that there is only one transcript of eqANP32B,and that this transcript showed only very low support to the EIV RNA polymerase.This functional defect in eqANP32B is caused by the sequence of the 110–259 amino acids at its Cterminus.Our results indicated that it is the eqANP32A_X2 protein that mainly determines the efficiency of the EIV replication in horses.In conclusion,our study parsed the molecular properties of eqANP32 family proteins and revealed the sequence features of eqANP32A and eqANP32B,suggesting for the first time that the N-Cap region of ANP32A protein also plays an important role in supporting the activity of the influenza virus polymerase.Yuan Zhang Xing Guo Mengmeng Yu Liuke Sun Yuxing Qu Kui Guo Zhe Hu Diqiu Liu Haili Zhang Xiaojun Wang 2023Virologica Sinica2023,38,6:0
20Plant functional trait diversity and structural diversity co-underpin ecosystem multifunctionality in subtropical forests显示文摘Tree species diversity is assumed to be an important component in managing forest ecosystems because of effects on multiple functions or ecosystem multifunctionality.However,the importance of tree diversity in determining multifunctionality in structurally complex subtropical forests relative to other regulators(e.g.,soil microbial diversity,stand structure,and environmental conditions)remains uncertain.In this study,effects of aboveground(species richness and functional and structural diversity)and belowground(bacterial and fungal diversity)biodiversity,functional composition(community-weighted means of species traits),stand structure(diameter at breast height and stand density),and soil factors(pH and bulk density)on multifunctionality(including biomass production,carbon stock,and nutrient cycling)were examined along a tree diversity gradient in subtropical forests.The community-weighted mean of tree maximum height was the best predictor of ecosystem multifunctionality.Functional diversity explained a higher proportion of the variation in multifunctionality than that of species richness and fungal diversity.Stand structure-played an important role in modulating the effects of tree diversity on multifunctionality.The work highlights that species composition and maximizing forest structural complexity are effective strategies to increase forest multifunctionality while also conserving biodiversity in the management of multifunctional forests under global environmental changes.Shuai Ouyang Mengmeng Gou Pifeng Lei Yue Liu Liang Chen Xiangwen Deng Zhonghui Zhao Yelin Zeng Yanting Hu Changhui Peng Wenhua Xiang 2023Forest Ecosystems2023,10,2:0
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