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China Surfactant Detergent & Cosmetics ›› 2024, Vol. 54 ›› Issue (5): 507-513.doi: 10.3969/j.issn.2097-2806.2024.05.002

• Basic research • Previous Articles     Next Articles

Synthesis and self-assembly of an azobenzene-containing dipeptide surfactant

Linlin Zhao,Yutian Jiao,Li Zhao*(),Ce Wang,Baocai Xu*()   

  1. School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing 100048, China
  • Received:2024-01-28 Revised:2024-05-05 Online:2024-05-22 Published:2024-05-21
  • Contact: *E-mail: zhaol@btbu.edu.cn (Li Zhao); xubaoc@btbu.edu.cn (Baocai Xu).

Abstract:

A glycylglycine-derived surfactant containing an azobenzene moiety as terminal (Azo-C6-GG) was synthesized. Azo-C6-GG self-assembled into vesicles driven by several non-covalent interactions. The trans-azobenzene transformed to cis-azobenzene after the irradiation of UV light, and vesicles were still formed in this cis-Azo-C6-GG system. A supra-amphiphile (Azo-C6-GG@α-CD) was formed after the addition of α-cyclodextrin (α-CD), which formed vesicles in aqueous solution. The azobenzene group was embedded into the cavity of α-CD, and meanwhile, the CD ring shuttled between the alkyl chain and the azobenzene group. After the UV light irradiation, the alkyl chain was embedded into the cavity of α-CD. The Azo-C6-GG@α-CD complexes were found to self-assemble into vesicles both before and after the UV light irradiation.

Key words: azobenzene, cyclodextrin, light irradiation, vesicle, self-assembly

CLC Number: 

  • TQ423