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1. Vapor-Solid Growth of Monocrystalline Zinc Nanoplates | |||
Luo Xiyuan,Tan Guotai,Wang Huanhua,Yuan Mengyao | |||
Physics 29 November 2011 | |||
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Abstract:Zinc nanoplates of two kinds of basal surfaces were grown using a non-catalytic and template-free thermal evaporation. High resolution tunneling electron microscopy and selected area electron diffraction analyses reveal that the nanoplates are connected single crystals with {0001} and {11-20} as their basal planes. The intrinsic growth anisotropy of zinc was verified as the driving force leading to the formation of the nanoplates to minimize the total surface energy. The growth of zinc nanoplates follows the mechanism similar to vapor-solid mechanism. | |||
TO cite this article:Luo Xiyuan,Tan Guotai,Wang Huanhua, et al. Vapor-Solid Growth of Monocrystalline Zinc Nanoplates[OL].[29 November 2011] http://en.paper.edu.cn/en_releasepaper/content/4452290 |
2. Effect of protein molecular weight on the mass transfer in protein mixing | |||
Asad Ahmed,Chai Chuan,Wu Jiangtao | |||
Physics 28 December 2010 | |||
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Abstract:Mixing of protein solution with that of precipitating agent is very important in the protein crystallization experiments. In this work, the interferometry images are recorded during the mixing of two proteins with different molecular weight: lysozyme of ~14.6 kDa and trypsin of ~ 23.3 kDa placed in a Mach-Zehnder interferometer. The protein molecular weight dependence on the competition of the transport process and kinetics at the interface are studied. The concentration profiles of protein solution are calculated to analyze the mass transfer during the mixing process. It is observed that the mass transfer process is more efficient during the mixing of protein with higher molecular weight. In addition, the more rapid concentration changes above the interface suggest that convection may dominate the diffusion. The phenomenon of convection is higher in the protein solutions with higher molecular weight. | |||
TO cite this article:Asad Ahmed,Chai Chuan,Wu Jiangtao. Effect of protein molecular weight on the mass transfer in protein mixing[OL].[28 December 2010] http://en.paper.edu.cn/en_releasepaper/content/4401691 |
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