Direct observation of bunching of elementary steps on protein crystals under forced flow conditions
文献类型：期刊论文
| 作者 | Sazaki G; Dai GL(戴国亮)
|
| 刊名 | Theoretical and Applied Mechanics Letters
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：力学研究所
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