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首页> 外文期刊>Journal of Crystal Growth >Measurement and control of the crystal growth rate of tetragonal hen egg-white lysozyme imaged with an atomic force microscope
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Measurement and control of the crystal growth rate of tetragonal hen egg-white lysozyme imaged with an atomic force microscope

机译:原子力显微镜成像的四方蛋清溶菌酶晶体生长速率的测量与控制

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摘要

The step velocity of the tetragonal hen egg-white lysozyme (110) crystal plane toward the [001] direction could be controlled and measured accurately on a nanometer scale using a specially designed sealed sample vessel on an atomic force microscope. The effects of lysozyme and NaCl concentration on the step velocity were also examined. The step velocity was a non-linear function of supersaturation (σ). The heights of steps and 2D islands corresponded to a bimolecular layer and the dominant growth unit was estimated as a tctramer. Crystal growth apparently stopped when the supersaturation was reduced to less than 0.69.
机译:可以使用原子力显微镜上专门设计的密封样品容器,在纳米级上精确控制和测量四方鸡蛋清溶菌酶(110)晶体面朝[001]方向的步进速度。还检查了溶菌酶和NaCl浓度对步进速度的影响。步进速度是过饱和度(σ)的非线性函数。台阶和2D岛的高度对应于双分子层,并且主要生长单位被估计为三聚体。当过饱和度降低至小于0.69时,晶体生长明显停止。

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