期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 32, 期 9-10, 页码 758-764出版社
WILEY-BLACKWELL
DOI: 10.1002/marc.201100052
关键词
asymmetrical cyclopeptide; nanostructure; peptides; self-assembly
资金
- Ministry of Science and Technology of China [2011CB606202]
- Trans(New)-Century Training Programme Foundation for the Talents from Ministry of Education of China, Natural Science Foundation of Hubei Province of China [2009CDA024]
- Research Fund for the Doctoral Program of Education of China
In this study, two asymmetrical cyclopeptides (CP1 and CP2) were designed and synthesized. The self-assembly behaviors of the asymmetrical cyclopeptides at varying pHs were investigated in terms of transmission electron microscopy (TEM), circular dichroism (CD), and Fourier transform infrared (FT-IR) spectroscopy. It was found that the self-assembly of CP1 resulted in the formation of nanofibers with alpha-helix conformation, while CP2 self-assembled into well-ordered nanorods with anti-parallel beta-sheet conformation. The strategy demonstrated here presents great potential for preparation of well-defined nanostructures via rationally designing the molecular structures of cyclopeptides.
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