Direct observation of bunching of elementary steps on protein crystals under forced flow conditions

	Direct observation of bunching of elementary steps on protein crystals under forced flow conditions
	Sazaki G; Dai GL(戴国亮)
刊名	Theoretical and Applied Mechanics Letters
	2015
卷号	5 期号:4 页码:173-176
关键词	In situ observation Step bunching Step debunching Elementary steps Forced flow Protein crystal
ISSN号	2095-0349
中文摘要	Bunching of elementary steps by solution flow is still not yet clarified for protein crystals. Hence, in this study, we observed elementary steps on crystal surfaces of model protein hen egg-white lysozyme (HEWL) under forced flow conditions, by our advanced optical microscopy. We found that in the case of a HEWL solution of 99.99% purity, forced flow changed bunched steps into elementary ones (debunching) on tetragonal HEWL crystals. In contrast, in the case of a HEWL solution of 98.5% purity, forced flow significantly induced bunching of elementary steps. These results indicate that in the case of HEWL crystals, the mass transfer of impurities is more significantly enhanced by forced solution flow than that of solute HEWL molecules. We also showed that forced flow induced the incorporation of microcrystals into a mother crystal and the subsequent formation of screw dislocations and spiral growth hillocks.
分类号	二类
收录类别	CSCD
语种	英语
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58327]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Sazaki G,Dai GL. Direct observation of bunching of elementary steps on protein crystals under forced flow conditions[J]. Theoretical and Applied Mechanics Letters,2015,5(4):173-176.
APA	Sazaki G,&Dai GL.(2015).Direct observation of bunching of elementary steps on protein crystals under forced flow conditions.Theoretical and Applied Mechanics Letters,5(4),173-176.
MLA	Sazaki G,et al."Direct observation of bunching of elementary steps on protein crystals under forced flow conditions".Theoretical and Applied Mechanics Letters 5.4(2015):173-176.