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| 1 | Biofilm-inspired adhesive and antibacterial hydrogel with tough tissue integration performance for sealing hemostasis and wound healing显示文摘Uncontrolled bleeding and infection can cause significant increases in mortalities.Hydrogel sealants have attracted extensive attention for their ability to control bleeding.However,because interfacial water is a formidable barrier to strong surface bonding,a challenge remains in finding a product that offers robust tissue adhesion combined with anti-infection properties.Inspired by the strong adhesive mechanism of biofilm and mussels,we report a novel dual bionic adhesive hydrogel(DBAH)based on chitosan grafted with methacrylate(CS-MA),dopamine(DA),and N-hydroxymethyl acrylamide(NMA)via a facile radical polymerization process.CS-MA and DA were simultaneously included in the adhesive polymer for imitating the two key adhesive components:polysaccharide intercellular adhesin(PIA)of staphylococci biofilm and 3,4-dihydroxy-L-phenylalanine(Dopa)of mussel foot protein,respectively.DBAH presented strong adhesion at 34 kPa even upon three cycles of full immersion in water and was able to withstand up to 168 mm Hg blood pressure,which is significantly higher than the 60–160 mm Hg measured in most clinical settings.Most importantly,these hydrogels presented outstanding hemostatic capability under wet and dynamic in vivo movements while displaying excellent antibacterial properties and biocompatibility.Therefore,DBAH represents a promising class of biomaterials for high-efficiency hemostasis and wound healing. | Wei Han Bo Zhou Kai Yang Xin Xiong Shifang Luan Yu Wang Zheng Xu Peng Lei Zhengshan Luo Jian Gao Yijing Zhan Guopu Chen Lei Liang Rui Wang Sha Li Hong Xu | 2020 | Bioactive Materials2020，5，4： | 6 |
| 2 | Influence of surface passivation on the minority carrier lifetime, Fe-B pair density and recombination center concentration显示文摘Three kinds of methods (0.08 mol/L iodine in ethanol, SiNx:H, and 40% HF) are used to passivate solar-grade Czochralski (Cz) silicon wafers. Thereafter, minority carrier lifetime and Fe-B pair density of the wafers are measured using the microwave photo-conductance decay (μ-PCD) technique. Based on the measured minority carrier lifetime, it is found that the passivation quality achieved by 0.08 mol/L iodine in ethanol is the best, while that by 40% HF solution is the worst. For the identical wafer, the density distribution of Fe-B pairs is different when different passivation methods are used. When the wafers are passivated by SiNx:H, there exists a close correlation between the distribution of minority carrier lifetime and the concentration distribution of Fe-B pairs. Furthermore, for wafers with high-quality passivation, there is a strong correlation between the recombination center concentration and the Fe-B pair density. All the analyses verify that the surface passivation quality of wafers influences the measurement results of minority carrier lifetime, Fe-B pair density and recombination center concentration. | LI Feng MA ZhongQuan MENG XiaJie LU Peng YU ZhengShan HE Bo | 2010 | Chinese Science Bulletin2010，55，17： | 2 |
| 3 | Modelling of flow stress characterizing dynamic recrystallization for magnesium alloy AZ31B显示文摘 | LIU Juan CUI Zhengshan LI Congxing | 2008 | Computational Materials Science2008，41，3： | 1 |
| 4 | Recycling of Pb from lead residues containing sulfuric by chlorinating agent 显示文摘 | Li Zhengshan(李正山) Jin Peng(金鹏)and Xu Defang(徐德芳) | 1994 | Journal of Chengdu Science and Technology University(成都科技大学学报)1994，，5： | 1 |
| 5 | Analysis on Spatial Pattern of Land Use Based on Fractal Theory:A Case Study of a Southwest Town显示文摘Based on GIS,RS technology and fractal theory,this paper analyzes land use type of a southwest town in 2010. It obtains fractal model,fractal dimension and stability index of land use types,which will provide favorable reference for healthy social and economic development of this town and scientific decision making for rational control of land resource. | Haixia LUO Kai LUO Lusheng YE Wenqing CHEN Zhengshan LI | 2013 | Asian Agricultural Research2013，5，7： | 0 |
| 6 | Broadly neutralizing antibodies against Omicron-included SARS-CoV-2 variants induced by vaccination显示文摘The SARS-CoV-2 Omicron variant shows substantial resistance to neutralization by infection-and vaccination-induced antibodies,highlighting the demands for research on the continuing discovery of broadly neutralizing antibodies(bnAbs).Here,we developed a panel of bnAbs against Omicron and other variants of concern(VOCs)elicited by vaccination of adenovirus-vectored COVID-19 vaccine(Ad5-nCoV). | Xiangyang Chi Yingying Guo Guanying Zhang Hancong Sun Jun Zhang Min Li Zhengshan Chen Jin Han Yuanyuan Zhang Xinghai Zhang Pengfei Fan Zhe Zhang Busen Wang Xiaodong Zai Xuelian Han Meng Hao Ting Fang Jinghan Xu Shipo Wu Yi Chen Yingying Fang Yunzhu Dong Bingjie Sun Jinlong Zhang Jianmin Li Guangyu Zhao Changming Yu Qiang Zhou Wei Chen | 2022 | Signal Transduction and Targeted Therapy2022，7，5： | 0 |
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