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1生物芯片进展显示文摘生物芯片是近20年来生物技术领域发展迅速和获得重大突破的高新技术,本综述介绍了经典的平铺生物芯片(DNA和蛋白质芯片)之后,重点介绍了近十年来发展的新的生物芯片的概念和质谱为读出机制的表面增强激光解析离子化飞行时间质谱(SELDI)芯片、高通量DNA测序技术、基于胶体光子晶体的微球高通量生物检测技术、三维阵列生物芯片技术和微流控等生物芯片技术。同时描述了各种生物芯片技术的优点、应用范围和有待解决的问题,最后展望了生物芯片技术的未来。肖守军 陈凌 许宁 2009化学进展2009,21,11:10
2Microstructure and Tribological Properties of TiB_2/TiB/TiN_x(x=1,0.3)/Ti Composite Coating Produced on Pure Ti by Laser Surface Alloying显示文摘TiB2/TiB/TiNx(x=1,0.3)/Ti composite coating was prepared on pure Ti by laser surface alloying by using powders of boron as starting materials.The composite coating was examined by X-ray diffraction(XRD),high-resolution transmission electron microscopy(HRTEM)and scanning electron microscopy(SEM).The friction and wear properties of the composite coating were examined using a pin-on-disk tester under dry sliding wear condition.The results showed that the top surface of the composite coating was mainly composed of TiB2,TiB,TiN0.3,TiN and Ti phases,while the interface of the composite coating was composed of TiB and Ti phases.The composite coating showed sticklike structure near the top surface,and dendrites structure near the interface.The friction and wear test showed that the composite coating had better wear resistance than pure Ti due to their higher microhardness than that of pure Ti substrate.Guo Chun1,2,Chen Jianmin1,Zhou Jiansong1,Zhao Jierong1,2,Wang Lingqian1,2,Yu Youjun1,2,Zhou Huidi 1 1 Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100039,China 2012稀有金属材料与工程2012,41,S1:2
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