Hierarchical Self-Assembly of Amphiphilic Peptide Dendrons: Evolution of Diverse Chiral Nanostructures Through Hydrogel Formation Over a Wide pH Range

doi:10.1002/chem.201003049

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	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
	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.