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| 1 | Synthesis and ferroelectric properties of Nd doped multiferroic BiFeO_3 nanotubes显示文摘Nd doped multiferroic BiFeO3 (Bi0.94Nd0.06FeO3 (BNF)) nanotubes were successfully synthesized by a sol-gel template method.Electron microscopy investigations exhibited that these nanotubes had straight and smooth profile with diameters of about 200 nm and wall thickness of about 20 nm.A perovskite-type structure of BNF was confirmed in the nanotubes by high-resolution transmission electron microscopy and selected area electron diffraction analysis.These nanotubes had high resistivity.The dielectric constant and dielectric loss of the nanotubes were 126 and 0.040 at 1 MHz, respectively.The ferroelectric properties of these BNF nanotubes were demonstrated with a remnant polarization of 48 μC/cm2 and a coercive electric field of 163 kV/cm. | WANG Jing LI MeiYa LIU XiaoLian PEI Ling LIU Jun YU BenFang ZHAO XingZhong | 2010 | Chinese Science Bulletin2010，55，16： | 3 |
| 2 | Synthesis and characterization of MoS2/Fe@Fe3O4 nanocomposites exhibiting enhanced microwave absorption performance at normal and oblique incidences显示文摘Herein,we attempted to prepare MoS2/Fe@Fe3O4 nanocomposites capable of strongly absorbing broadband incident electromagnetic(EM)radiation and probed the effects of their composition on complex permittivity and permeability at 2-18 GHz.Calculations of normal-incidence reflection losses(RLs)based on EM parameters revealed that the Fe@Fe3O4 to MoS2 mass ratio strongly influenced the absorption peak intensity and bandwidth.Specifically,an RL peak of-31.8 dB@l5.3 GHz and a bandwidth(RL<-lOdB)of4.8 GHz(13.2-18 GHz)were achieved at a thickness of 1.52 mm and a Fe@Fe3O4 to M0S2 mass ratio of 60:40.Further,RL and bandwidth were investigated for oblique incidence,in which case two kinds of EM waves(TE-electric field perpendicular to plane of incidence;TM-electric field in the plane of incidence)were considered.The absorption peaks of TE and TM waves did not exceed-2 0 dB when the incidence angle increased to 3 0,and the bandwidth(R L<-10 dB)reached 4.2 GHz(TE wave)and 4.0 GHz(TM wave)when this angle was further increased to 40.0°and 50.4,respectively.Finally,the mechanism of microwave absorption was discussed in detail. | Peng Wang Junming Zhang Guowu Wang Benfang Duan Donglin He Tao Wang Fashen Li | 2019 | Journal of Materials Science & Technology2019，35，9： | 2 |
| 3 | A viscosity reduction study on Chinese extra heavy oil by the addition of synthesized novel oil-soluble viscosity reducing agents显示文摘 | Wu Benfang Gao Jinsheng | 2010 | Petroleum Science and Technology2010，，28： | 1 |
| 4 | The State and Future Perspectives of vacuum are remehing technology of titanium alloys 显示文摘 | Wang Gao Zhang Zhen Li Benfang | 1998 | Titanium Industry Progress1998，15，5： | 1 |
| 5 | Usual interstitial pneumonia coexisted with nonspecific interstitial pneumonia,What's the diagnosis?显示文摘 | Xia Fang Benfang Luo Xianghua Yi | 2012 | Diagnostic Pathology2012，7，： | 1 |
| 6 | A viscosity reduction study on Chinese extra heavy oil by the addition of synthesized novel oil-soluble viscosity reducing agents显示文摘 | Wu Benfang Gao Jinsheng | 2010 | Petroleum Science and Technology2010，28，18： | 1 |
| 7 | Identification and immunogenicity of group A Streptococcus culture supernatant proteins 显示文摘 | Benfang Lei Stacy Mackie Slawomir Lukomski | 2000 | Infect Immun2000，68，12： | 1 |
| 8 | A viscosity reduction study on chinese extra heavy oil by the addition of synthesized novel oil-soluble viscosity-reducing agents 显示文摘 | Wu Benfang Gao Jinsheng | 2010 | Petroleum Science and Technology2010，28，18： | 1 |
| 9 | Effects of Nd and high-valence Mn co-doping on the electrical and magnetic properties of multiferroic BiFeO 3 ceramics显示文摘 | Zhongqiang Hu Meiya Li Yang Yu Jun Liu Ling Pei Jing Wang Xiaolian Liu Benfang Yu Xingzhong Zhao | 2010 | Solid State Communications2010，，23： | 1 |
| 10 | A multifunctional and scalable fullerene electron transporting material for efficient inverted perovskite solar cells and modules显示文摘The interfacial properties between charge transporting material and perovskite(PVSK)play critical roles in governing the photovoltaic performances of perovskite solar cells(PVSCs).Herein,we develop a multifunctional fulleropyrrolidine(FMG)as an electron transporting material(ETM),which facilitates the construction of efficient and stable inverted PVSCs and modules.It revealed that the facile and scalable FMG possesses not only excellent electron extraction capabilities,but also multi-groups to simultaneously passivate PVSKs via Lewis acid-base and hydrogen bonding interactions.The coating of FMG onto PVSK interestingly yields a dense and interactive layer with the graded ETM-PVSK heterojunction architecture.As a result,FMGbased PVSCs demonstrate a champion efficiency of 23.8%,outperforming 21.0%of PCBM-based devices.FMG could also be utilized to improve photovoltaic performance of large-scale modules.In addition,FMG has successfully elongated the lifetime of the corresponding PVSCs,maintaining 85%of the initial performance after the continuous 60-day one sun equivalent illumination in ambient. | Kangrong Yan Ziqiu Shen Benfang Niu Yanchun Huang Di Wang Emely Gu Buyi Yan Jizhong Yao Hongzheng Chen Chang-Zhi Li | 2023 | Science China Chemistry2023，66，6： | 0 |
| 11 | Benfang Lei's research on heme acquisition in Gram-positive pathogens and bacterial pathogenesis显示文摘Benfang Lei's laboratory conducts research on pathogenesis of human pathogen Group A Streptococcus (GAS)and horse pathogen Streptococcus equi(S.equi). His current research focuses on heme acquisition in Gram-positive pathogens and molecular mechanism of GAS and S.equi pathogenesis.Heme is an important source of essential iron for bacterial pathogens.Benfang Lei and colleagues identified the first cell surface heme-binding protein in Gram-positive pathogens and the heme acquisition system in GAS,demonstrated direct heme transfer from one protein to another,demonstrated an experimental pathway of heme acquisition by the Staphylococcus aureus Isd system,elucidated the activated heme transfer mechanism,and obtained evidence for a chemical mechanism of direct axial ligand displacement during the Shp-to-HtsA heme transfer reaction.These findings have considerably contributed to the progress that has been made over recent years in understanding the heme acquisition process in Grampositive pathogens.Pathogenesis of GAS is mediated by an abundance of extracellular proteins,and pathogenic role and functional mechanism are not known for many of these virulence factors.Lei laboratory identified a secreted protein of GAS as a CovRS-regulated virulence factor that is a protective antigen and is critical for GAS spreading in the skin and systemic dissemination.These studies may lead to development of novel strategies to prevent and treat GAS infections. | Benfang Lei,Department of Veterinary Molecular Biology, Montana State University,960 Technology Blvd,Bozeman,MT 59717,United States | 2010 | World Journal of Biological Chemistry2010，1，9： | 0 |
| 12 | MXRA7 is involved in megakaryocyte differentiation and platelet production显示文摘Matrix remodeling is a critical process in hematopoiesis.The biology of MXRA7,as a matrix remodeling associated gene,has still not been reported in hematopoietic process.Public databases showed that MXRA7 expressed in hematopoietic stem cells,suggesting that it may be involved in hematopoiesis.We found that the amounts of megakaryocytes were lower in bone marrow and spleen from Mxra7−/−mice compared with that from wild-type mice.Knock-out of MXRA7 also reduced the amount of platelet in peripheral blood and affected the function of platelets.Knock-out of MXRA7 inhibited hematopoietic stem/progenitor cells differentiate to megakaryocytes possibly through down-regulating the expression of GATA-1 and FOG-1.Moreover,knockdown of MXRA7 in MEG-01 cells could inhibit the cell proliferation and cell apoptosis.Knockdown of MXRA7 inhibited the differentiation of MEG-01 cells and proplatelet formation through suppressing the ERK/MAPK signaling pathway and the expression ofβ-tubulin.In conclusion,the current study demonstrated the potential significance of MXRA7 in megakaryocyte differentiation and platelet production.The novel findings proposed a new target for the treatment of platelet-related diseases,and much more investigations are guaranteed to dissect the mechanisms of MXRA7 in megakaryocyte differentiation and platelet production. | Zhenjiang Sun Benfang Wang Ying Shen Kunpeng Ma Ting Wang Yiqiang Wang Dandan Lin | 2023 | Blood Science2023，5，3： | 0 |
| 13 | Manipulating the film morphology evolution toward green solvent-processed perovskite solar cells显示文摘High-performance perovskite solar cells(PVSCs)with low energy consumption and green processing are highly desired,but constrained by the difficulty in morphology control and the poor understanding on morphology evolution mechanisms.To address this issue,here we studied the effect of antisolvents on the perovskite film formation.We found that both the antisolvents and the perovskite composition affect the perovskite film morphology greatly via influencing the intermediate phase,and different perovskite compositions require different antisolvents to reach the optimal morphology.This provides the opportunity to achieve high-performance PVSCs with green antisolvent,that is,isopropanol(iPA)by changing the perovskite compositions,and leads to a powerconversionefficiency(PCE)of 21.50% for PVSCs based on MA_(0.6)FA_(0.4)PbI_(3).Further,we fabricated“fully green”PVSCs with all layers prepared by green sol-vents,and the optimal PCE can reach 19%,which represents the highest among PVSCs with full-green processing.This work provides insight into the perovskite morphology evolution and paves the way toward“green”processing PVSCs. | Shiqi Shan Yaokai Li Haotian Wu Tianyi Chen Benfang Niu Yingzhu Zhang Di Wang Chenxia Kan Xuegong Yu Lijian Zuo Hongzheng Chen | 2021 | SusMat2021，1，4： | 0 |
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