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| 1 | Light-emitting diodes based on colloidal silicon quantum dots显示文摘Colloidal silicon quantum dots(Si QDs) hold great promise for the development of printed Si electronics. Given their novel electronic and optical properties, colloidal Si QDs have been intensively investigated for optoelectronic applications. Among all kinds of optoelectronic devices based on colloidal Si QDs, QD light-emitting diodes(LEDs) play an important role. It is encouraging that the performance of LEDs based on colloidal Si QDs has been significantly increasing in the past decade. In this review, we discuss the effects of the QD size, QD surface and device structure on the performance of colloidal Si-QD LEDs. The outlook on the further optimization of the device performance is presented at the end. | Shuangyi Zhao Xiangkai Liu Xiaodong Pi Deren Yang | 2018 | Journal of Semiconductors2018，39，6： | 2 |
| 2 | Bidirectional differentiation of BMSCs induced by a biomimetic procallus based on a gelatin-reduced graphene oxide reinforced hydrogel for rapid bone regeneration显示文摘Developmental engineering strategy needs the biomimetic composites that can integrate the progenitor cells,biomaterial matrices and bioactive signals to mimic the natural bone healing process for faster healing and reconstruction of segmental bone defects.We prepared the gelatin-reduced graphene oxide(GOG)and constructed the composites that mimicked the procallus by combining the GOG with the photo-crosslinked gelatin hydrogel.The biological effects of the GOG-reinforced composites could induce the bi-differentiation of bone marrow stromal cells(BMSCs)for rapid bone repair.The proper ratio of GOG in the composites regulated the composites’mechanical properties to a suitable range for the adhesion and proliferation of BMSCs.Besides,the GOG-mediated bidirectional differentiation of BMSCs,including osteogenesis and angiogenesis,could be activated through Erk1/2 and AKT pathway.The methyl vanillate(MV)delivered by GOG also contributed to the bioactive signals of the biomimetic procallus through priming the osteogenesis of BMSCs.During the repair of the calvarial defect in vivo,the initial hypoxic condition due to GOG in the composites gradually transformed into a well-vasculature robust situation with the bi-differentiation of BMSCs,which mimicked the process of bone healing resulting in the rapid bone regeneration.As an inorganic constituent,GOG reinforced the organic photo-crosslinked gelatin hydrogel to form a double-phase biomimetic procallus,which provided the porous extracellular matrix microenvironment and bioactive signals for the bi-directional differentiation of BMSCs.These show a promised application of the bio-reduced graphene oxide in biomedicine with a developmental engineering strategy. | Delong Jiao Ao Zheng Yang Liu Xiangkai Zhang Xiao Wang Jiannan Wu Wenjun She Kaige Lv Lingyan Cao Xinquan Jiang | 2021 | Bioactive Materials2021，6，7： | 1 |
| 3 | Drought stress and plant ecotype drive microbiome recruitment in switchgrass rhizosheath显示文摘The rhizosheath,a layer of soil grains that adheres firmly to roots,is beneficial for plant growth and adaptation to drought environments.Switchgrass is a perennial C4 grass which can form contact rhizosheath under drought conditions.In this study,we characterized the microbiomes of four different rhizocompartments of two switchgrass ecotypes(Alamo and Kanlow)grown under drought or well-watered conditions via 16S ribosomal RNA amplicon sequencing.These four rhizocompartments,the bulk soil,rhizosheath soil,rhizoplane,and root endosphere,harbored both distinct and overlapping microbial communities.The root compartments(rhizoplane and root endosphere)displayed low-complexity communities dominated by Proteobacteria and Firmicutes.Compared to bulk soil,Cyanobacteria and Bacteroidetes were selectively enriched,while Proteobacteria and Firmicutes were selectively depleted,in rhizosheath soil.Taxa from Proteobacteria or Firmicutes were specifically selected in Alamo or Kanlow rhizosheath soil.Following drought stress,Citrobacter and Acinetobacter were further enriched in rhizosheath soil,suggesting that rhizosheath microbiome assembly is driven by drought stress.Additionally,the ecotype-specific recruitment of rhizosheath microbiome reveals their differences in drought stress responses.Collectively,these results shed light on rhizosheath microbiome recruitment in switchgrass and lay the foundation for the improvement of drought tolerance in switchgrass by regulating the rhizosheath microbiome. | Tie-Yuan Liu Nenghui Ye Xinyu Wang Debatosh Das Yuxiang Tan Xiangkai You Mingxiu Long Tianming Hu Lei Dai Jianhua Zhang Mo-Xian Chen | 2021 | Journal of Integrative Plant Biology2021，63，10： | 1 |
| 4 | Smart nanoprobe based on two-photon sensitized terbium-carbon dots for dual-mode fluorescence thermometer and antibacterial显示文摘Accurate temperature measurement plays an important role in a variety of industrial processes and scientific researches.In our work,the dual-mode temperature response nanoprobe CDs-Tb-TMPDPA containing a two-photon ligand(4-(2,4,6-trimethoxyphenyl)-pyridine-2,6-dicarboxylic acid,TMPDPA)sensitized Tb3+as a temperature-sensitive unit and carbon dots(CDs)as photothermal reagent and a fluorescence reference unit,have been designed and synthesized.In this system,both the fluorescence intensity ratio and the fluorescence lifetime have a good response to temperature.In additio n,due to the excellent photothermal conversion capability of CDs,photothermal antibacterial ability was also tested.Based on the temperature dependence of the fluorescence and the two-photon excitation characteristics of CDs-Tb-TMPDPA,the nanoprobe can also be used in the anti-counterfeiting.Our finding opens a new prospect for the use of two-photon sensitized dual-mode fluorescence thermometers. | Huicheng Yan Hongyuhang Ni Yiwei Yang Changfu Shan Xiaoxi Yang Xiangkai Li Jing Cao Wenyu Wu Weisheng Liu Yu Tang | 2020 | Chinese Chemical Letters2020，31，7： | 1 |
| 5 | Research on a Reliability Calculating Model Based on Wear Data 显示文摘 | Liu Xiangkai Yuan Hongtao Gan Maozhi | 2000 | International Journal of Plant Engineerning and Management2000，，： | 1 |
| 6 | Nanofibrils in 3D aligned channel arrays with synergistic effect of Ag/NPs for rapid and highly efficient electric field disinfection显示文摘The disinfection of waterborne pathogens from drinking water is extremely important for human health.Although countless efforts have been devoted for drinking water inactivation,challenges still exist in terms of relative high energy consumption and complicated to implement and maintain.Here,silver nanoparticles anchoring wood carbon(Ag NPs/WC)membrane is developed as cost-effective,high flux,scalable filter for highly efficient electric field disinfection of water.Under electric field of 4 V voltage,the designed membrane achieved more than 5 log(99.999%)disinfection performance for different model bacteria,including Escherichia coli(E.coli),Enterococcus faecalis(E.faecalis),Salmonella enterica serovar Typhimirium(S.Typhimurium)and Bacillus subtilis(B.subtilis)with a high flux of 3.8 x 103 L m^(-2)h^(-1),extremely low energy consumption of 2 J L^(-1)m^(-2)and fantastic durability(7 days).The high disinfection performance of Ag NPs/WC membrane is attributed to the synergistic disinfection of carbon nanofibrils,Ag nanoparticles as well as the low tortuous structure of the channels in wood carbon.The Ag NPs/WC membrane presents a promising strategy for point-of-use drinking water electric field disinfection treatment. | Zi Yang Hongyuhang Ni Pu Liu Hanwen Liu Ke Yang Zhengze Zhang Baodui Wang Xiangkai Li Fengjuan Chen | 2021 | Chinese Chemical Letters2021，32，10： | 0 |
| 7 | Research on a Reliability Calculating Model Based on Wear Data显示文摘Using various mathematical statistical methods and technology this paper researchesthe methods and steps of building a statistical model of wearing,ules and,eliability models byresearching on the wear measure theta of products. This method has been venged the availabilitythrough actual example modeling, and provides a new method for products’ reliability modeling. | Liu Xiangkai Yuan Hongtao Gan Maozhi Shi Quan(Doctoral student team, ordnance Engineering College, Shijiazhuang 050003) | 2000 | International Journal of Plant Engineering and Management2000，5，2： | 0 |
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