Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (8): 51-54.

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Efect of Ultraviolet Irradiation on Aggregation M orphology of Ionic Complementary Self-Assembly Oligo-Peptide EAK16-Ⅱ

Ouyang Xin-ping1  P．Chen2   

  1. 1.School of Chemical and Energy Engineering,South China Univ.of Tech.,Guangzhou 5 10640,Guangdong,China;2.Dept.of Chemical Engineering,Univ.of Waterloo,200 Univ.Avenue,Waterloo,Ontario,Canada, N2L 3G1
  • Received:2005-10-19 Online:2006-08-25 Published:2006-08-25
  • Contact: 欧阳新平(1966-)，男，博士，副研究员，主要从事生物质资源研究 E-mail:ceouyang@scut.edu.cn
  • About author:欧阳新平(1966-)，男，博士，副研究员，主要从事生物质资源研究

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Abstract:

The effect of ultraviolet irradiation on the serf-assembly aggregation morphology of ionic complementary self-assembly oligo-peptide EAK1 6-Ⅱin aqueous solution was studied using an atomic force microscopy.It is found that the ultraviolet iradiation changes the nanostructure formed by the self-assembly in the aqueous s0lution.and a variation from a fibrillar structure into a globular structure of the aggregation morphology can be caused after an ira diation with 365 nm ultraviolet for 2 h.According to the nuclear model.there draws a conclusion that the ab0ve mentioned change results from the destruction of the interm olecular forces of the assembled oligo-peptide as well as from the transition from β sheet into β turn.

Key words: serf-assembly oligo-peptide, aggregation morphology, ultraviolet, atomic force microscope