Hierarchical Self-Assembly of Amphiphilic Peptide Dendrons: Evolution of Diverse Chiral Nanostructures Through Hydrogel Formation Over a Wide pH Range | |
Duan, Pengfei; Qin, Long; Zhu, Xuefeng; Liu, Minghua | |
刊名 | CHEMISTRY-A EUROPEAN JOURNAL
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2011-05-01 | |
卷号 | 17期号:23页码:6389-6395 |
关键词 | Chirality Dendrimers Hydrogels Nanotubes Self-assembly |
ISSN号 | 0947-6539 |
DOI | 10.1002/chem.201003049 |
英文摘要 | An amphiphilic dendron containing three dendrite L-glutamic acid units and a long alkyl chain was synthesized by a convergent method. It was found that the dendron could form hydrogels over a wide pH range from 2 to 13. Moreover, accompanying the pH change, the compounds self-assembled into various chiral structures: from helical nanotube, helical nanotube with a string of beads, and coiled superhelix to dendrite nanostructures, such as pine, feather, etc. A series of characterizations based on TEM observations, X-ray diffraction and FTIR spectroscopic measurements revealed that the dendron formed a bilayer first and then hierarchically self-assembled into various chiral nanostructures. The four carboxylic acid groups and three amide groups played an important role in the self-assembly. The interaction between the multiamide groups stabilized the bilayer structures, whereas the ionization degree of the carboxylic acids was responsible for the formation of various chiral structures. The work presented a hydrogel system with wide pH adaptability and showed the regulation on chiral structures by simple pH variations. |
语种 | 英语 |
出版者 | WILEY-V C H VERLAG GMBH |
WOS记录号 | WOS:000292095800015 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/73301] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Liu, Minghua |
作者单位 | Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Duan, Pengfei,Qin, Long,Zhu, Xuefeng,et al. Hierarchical Self-Assembly of Amphiphilic Peptide Dendrons: Evolution of Diverse Chiral Nanostructures Through Hydrogel Formation Over a Wide pH Range[J]. CHEMISTRY-A EUROPEAN JOURNAL,2011,17(23):6389-6395. |
APA | Duan, Pengfei,Qin, Long,Zhu, Xuefeng,&Liu, Minghua.(2011).Hierarchical Self-Assembly of Amphiphilic Peptide Dendrons: Evolution of Diverse Chiral Nanostructures Through Hydrogel Formation Over a Wide pH Range.CHEMISTRY-A EUROPEAN JOURNAL,17(23),6389-6395. |
MLA | Duan, Pengfei,et al."Hierarchical Self-Assembly of Amphiphilic Peptide Dendrons: Evolution of Diverse Chiral Nanostructures Through Hydrogel Formation Over a Wide pH Range".CHEMISTRY-A EUROPEAN JOURNAL 17.23(2011):6389-6395. |
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