Biosilicification Templated by Amphiphilic Block Copolypeptide Assemblies
文献类型：期刊论文
| 作者 | Xia, Lin; Liu, Yu; Li, Zhibo |
| 刊名 | MACROMOLECULAR BIOSCIENCE
 |
| 出版日期 | 2010-12-08 |
| 卷号 | 10期号:12页码:1566-1575 |
| 关键词 | Amphiphiles Biomimetics Biomineralization Diblock Copolymers Morphology Self-assembly |
| ISSN号 | 1616-5187 |
| DOI | 10.1002/mabi.201000297 |
| 英文摘要 | An amphiphilic poly(L-lysine.HBr)-block-poly(L-leucine) (KL) diblock copolypeptide and its supramolecular assembly are used as a template to direct silica formation, which proceeds by a cooperative process involving biomimetic mineralization and copolypetide reassembly under ambient conditions. Various silica structures can be obtained by using different counterions, changing the chain length of the KL diblocks, and applying a sol-gel mineralization method. We find that the chain length of the KL diblock is an important factor in terms of controlling biosilica morphologies. We also find that the nature of the counterions strongly affects the resulting silica structures. For the same KL diblock, variation of anions from phosphate to sulfate and to carbonate can produce hexagonal silica platelets, silica rods, and fused silica platelets, respectively. In contrast, application of a sol-gel method can replicate the copolypeptide fibril network morphology in water, while employment of ultrasonication to the sol-gel medium transforms the silica fibrils to rigid silica rods. The resulting silica morphology has been systematically characterized using SEM and TEM, and the polypeptide conformation is explored using FT-IR and CD spectroscopy. |
| 语种 | 英语 |
| WOS记录号 | WOS:000285313000019 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71001]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Zhibo |
| 作者单位 | Chinese Acad Sci, BNLMS, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Lin,Liu, Yu,Li, Zhibo. Biosilicification Templated by Amphiphilic Block Copolypeptide Assemblies[J]. MACROMOLECULAR BIOSCIENCE,2010,10(12):1566-1575. |
| APA | Xia, Lin,Liu, Yu,&Li, Zhibo.(2010).Biosilicification Templated by Amphiphilic Block Copolypeptide Assemblies.MACROMOLECULAR BIOSCIENCE,10(12),1566-1575. |
| MLA | Xia, Lin,et al."Biosilicification Templated by Amphiphilic Block Copolypeptide Assemblies".MACROMOLECULAR BIOSCIENCE 10.12(2010):1566-1575. |
入库方式： OAI收割
来源：化学研究所
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