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| 1 | Biofunctional magnesium coated Ti6Al4V scaffold enhances osteogenesis and angiogenesis in vitro and in vivo for orthopedic application显示文摘The insufficient osteogenesis and osseointegration of porous titanium based scaffold limit its further application.Early angiogenesis is important for scaffold survival.It is necessary to develop a multifunctional surface on titanium scaffold with both osteogenic and angiogenic properties.In this study,a biofunctional magnesium coating is deposited on porous Ti6Al4V scaffold.For osseointegration and osteogenesis analysis,in vitro studies reveal that magnesium-coated Ti6Al4V co-culture with MC3T3-E1 cells can improve cell proliferation,adhesion,extracellular matrix(ECM)mineralization and ALP activity compared with bare Ti6Al4V cocultivation.Additionally,MC3T3-E1 cells cultured with magnesium-coated Ti6Al4V show significantly higher osteogenesisrelated genes expression.In vivo studies including fluorochrome labeling,micro-computerized tomography and histological examination of magnesium-coated Ti6Al4V scaffold reveal that new bone regeneration is significantly increased in rabbits after implantation.For angiogenesis studies,magnesium-coated Ti6Al4V improve HUVECs proliferation,adhesion,tube formation,wound-healing and Transwell abilities.HUVECs cultured with magnesium-coated Ti6Al4V display significantly higher angiogenesis-related genes(HIF-1αand VEGF)expression.Microangiography analysis reveal that magnesium-coated Ti6Al4V scaffold can significantly enhance the blood vessel formation.This study enlarges the application scope of magnesium and provides an optional choice to the conventional porous Ti6Al4V scaffold with enhanced osteogenesis and angiogenesis for further orthopedic applications. | Peng Gao Bo Fan Xiaoming Yu Wenwen Liu Jie Wu Lei Shi Di Yang Lili Tan Peng Wan Yulin Hao Shujun Li Wentao Hou Ke Yang Xiaokang Li Zheng Guo | 2020 | Bioactive Materials2020，5，3： | 15 |
| 2 | Electroactive barium titanate coated titanium scaffold improves osteogenesis and osseointegration with low-intensity pulsed ultrasound for large segmental bone defects显示文摘For large segmental bone defects,porous titanium scaffolds have some advantages,however,they lack electrical activity which hinders their further use.In this study,a barium titanate(BaTiO3)piezoelectric ceramic was used to modify the surface of a porous Ti6Al4V scaffold(pTi),which was characterized by scanning electron microscopy,energy dispersive spectroscopy,X-ray photoelectron spectroscopy,and roughness and water contact angle analyses.Low intensity pulsed ultrasound(LIPUS)was applied in vitro and in vivo study.The activity of bone marrow mesenchymal stem cells,including adhesion,proliferation,and gene expression,was significantly superior in the BaTiO3/pTi,pTi+LIPUS,and BaTiO3/pTi+LIPUS groups than in the pTi group.The activity was also higher in the BaTiO3/pTi+LIPUS group than in the BaTiO3/pTi and pTi+LIPUS groups.Additionally,micro-computed tomography,the mineral apposition rate,histomorphology,and the peak pull-out load showed that these scaffold conditions significantly enhanced osteogenesis and osseointegration 6 and 12 weeks after implantation in large segmental bone defects in the radius of rabbits compared with those resulting from the pTi condition.Consequently,the improved osteogenesis and osseointegration make the BaTiO3/pTi+LIPUS a promising method to promote bone regeneration in large segmental bone defects for clinical application. | Bo Fan Zheng Guo Xiaokang Li Songkai Li Peng Gao Xin Xiao Jie Wu Chao Shen Yilai Jiao Wentao Hou | 2020 | Bioactive Materials2020，5，4： | 9 |
| 3 | Brief Introduction of TianHe Exascale Prototype System显示文摘Facing the challenges of the next generation exascale computing,National University of Defense Technology has developed a prototype system to explore opportunities,solutions,and limits toward the next generation Tianhe system.This paper briefly introduces the prototype system,which is deployed at the National Supercomputer Center in Tianjin and has a theoretical peak performance of 3.15 Pflops.A total of 512 compute nodes are found where each node has three proprietary CPUs called Matrix-2000+.The system memory is 98.3 TB,and the storage is 1.4 PB in total. | Ruibo Wang Kai Lu Juan Chen Wenzhe Zhang Jinwen Li Yuan Yuan Pingjing Lu Libo Huang Shengguo Li Xiaokang Fan | 2021 | Tsinghua Science and Technology2021，26，3： | 5 |
| 4 | High-mobility group protein N2 (HMGN2) inhibited the internalization of Klebsiella pneumoniae into cultured bladder epithelial cells显示文摘因为进主人房间的细菌的侵略是在感染过程的重要的步,使用代理人防碍细菌的成为主观是一条吸引人的途径堵住感染过程。在这个工作,我们在 Klebsiella pneumoniae 感染期间描述人的 cationic 主人防卫肽 HMGN2 的一个新、以前未被认出的角色。我们的结果揭示了 K 的成为主观。进有教养的膀胱的 pneumoniae 紧张 03183 上皮的房间(T24 ) 显著地在是不能的生产任何细菌抑制或杀菌的效果的 HMGN2 集中被减少。用 microarrays 和后续研究,我们证明 HMGN2 影响了 K 的成为主观。由禁止细菌的附件,然后减少的 pneumoniae 紧张 03183 导致细菌的 ERK1/2 激活和肌动朊聚合,它可能贡献细菌的成为主观进 T24 房间。细菌的成为主观的这混乱暗示 HMGN2 能对 K 提供保护。pneumoniae 感染。 | Guixia Wu Yue Cao Bo Fan Fengjin Zheng Xiang Gao Na Liu Xiaokang Liu Ning Huang | 2011 | Acta Biochimica et Biophysica Sinica2011，43，9： | 4 |
| 5 | Applications and prospects of functional oligosaccharides in pig nutrition:A review显示文摘Oligosaccharides are low molecular weight carbohydrates between monosaccharides and poly-saccharides,which consist of 2 to 20 monosaccharides linked by glycosidic bonds.They have the effects of promoting growth,regulating immunity,improving the structure of intestinal flora,and are anti-inflammatory and antioxidant.With the comprehensive implementation of the antibiotic prohibition policy in China,oligosaccharides as new green feed additive have been paid more attention.Oligosac-charides can be divided into the following 2 categories according to their digestive characteristics:one is easy to be absorbed by the intestine,called common oligosaccharides,such as sucrose and maltose oligosaccharide;the other is difficult to be absorbed by the intestine and has special physiological functions,called functional oligosaccharides.The common functional oligosaccharides include mannan oligosaccharides(MOS),fructo-oligosaccharides(FOS),chitosan oligosaccharides(COS),xylo-oligosaccharides(XOS)and so on.In this paper,we review the types and sources of functional oligo-saccharides,their application in pig nutrition,and the factors limiting their efficacy in recent years.This review provides the theoretical basis for further research of functional oligosaccharides,and the future application of alternative antibiotics in pig industry. | Nian Liu Haibo Shen Fan Zhang Xiang Liu Qinrui Xiao Qian Jiang Bie Tan Xiaokang Ma | 2023 | Animal Nutrition2023，，2： | 2 |
| 6 | Failure behavior of interfacial domain in SiC-matrix based composites显示文摘In this work,the microstructure,failure behavior and interfacial properties with respective to the interfacial domain in SiCf/BN/SiC and C_(f)/PyC/SiC composites were studied via the fiber push-in test.The differences in the mechanical response of the interfacial domain were observed.During the fiber push-in test for SiCf/BN/SiC,the interface debonding accompanied with interphase fracture occurred,resulting in an obvious sign of the onset of debonding on loading-displacement(P-u)curves.While the good continuity of P-u curves can be observed for Cf/PyC/SiC,which is due to that the failure is in the form of interface debonding along with interphase lateral slipping caused by the extension of buckled carbon fiber,without any interphase fracture.The interfacial properties calculated from the fiber push-in test show that Cf/PyC/SiC possesses a weaker interfacial domain compared with SiC_(f)/BN/SiC.The interfacial shear stress of SiCf/BN/SiC and C_(f)/PyC/SiC composites amounts 94.2 and 48.1 MPa,respectively. | Jinxue Ding Xiaokang Ma Xiaomeng Fan Jimei Xue Fang Ye Laifei Cheng | 2021 | Journal of Materials Science & Technology2021，，29： | 1 |
| 7 | Spectroscopic properties of Tm 3+ –Ho 3+ codoped SiO 2 –Al 2 O 3 –CaO–SrO glasses显示文摘 | Xin Wang Xiaokang Fan Song Gao Kefeng Li Lili Hu | 2014 | Ceramics International2014，，： | 1 |
| 8 | Two alkynyl functionalized Co(Ⅱ)-MOFs as fluorescent sensors exhibiting selectivity and sensitivity for Fe3+ and nitroaromatic compounds显示文摘Two Co(II)-MOFs with different structures were successfully synthesized under the premise of designing two ligands containing alkynyl functional groups. Complexes 1 ([Co(TEPA)(TPT)2/3]·2DMF·H2O) and 2 ([Co(EPA)(TPT)]·1.5DMF·1.5H2O) show excellent luminescence properties. Meanwhile, as fluorescent sensors, complexes 1 and 2 exhibit selectivity and sensitivity for Fe3+ with the Ksv of 1.520 ×104 L/mol and 3.543 ×104 L/mol, which can rapidly detect nitroaromatic compounds in methanol and ethanol, especially for 2,4-NPH through fluorescence quenching with high quenching efficiency. In particular, the Ksv value of complexes 1 and 2 towards 2,4-NPH can reach up to 1.627 ×105 L/mol and 9.600 ×104 L/mol, demonstrating that complexes 1 and 2 are good candidates for the identification and detection of Fe3+and nitroaromatic compounds. | Yue Li Xia Wang Chengyong Xing Xiurong Zhang Zelong Liang Xiaokang Wang Kai Zhang Yutong Wang Di Liu Weidong Fan Fangna Dai | 2019 | Chinese Chemical Letters2019，30，7： | 0 |
| 9 | Fe-Based Metal-Organic Frameworks:From Various Synthesis,Diverse Structures to Multifunctional Applications显示文摘Iron-based metal-organic frameworks(Fe-MOFs)have attracted extensive interest from researchers due to their tunability,favorable properties,and chemical versatility.Compared with conventional porous materials,Fe-MOFs exhibit better performance in a wide variety of applications.Herein,the structures of Fe-MOFs are summarized to explore potential structures based on isoreticular chemistry,as well as the recent research progress in their synthesis and multifunctional applications.The rapid development of Fe-MOFs has broadened the application range of Fe-MOFs,and a brief description of Fe-MOF applications in gas storage and separation,catalysis,bioimaging,and magnetism is outlined,with the aim to expand the prospects of Fe-MOFs in more practical applications. | Xiaokang Wang Mingming Xu Weidong Fan Daofeng Sun | 2023 | Chinese Journal of Chemistry2023，41，24： | 0 |
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