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China Surfactant Detergent & Cosmetics ›› 2019, Vol. 49 ›› Issue (11): 699-704.doi: 10.3969/j.issn.1001-1803.2019.11.001

• Basic research •     Next Articles

Study on redox response behaviors of spontaneous vesicles formed by anionic/cationic surfactants

LI Ying,LIU Lian,LIU Xue-feng()   

  1. Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2019-03-12 Revised:2019-10-25 Online:2019-11-22 Published:2019-11-26
  • Contact: Xue-feng LIU E-mail:xfliu@jiangnan.edu.cn

Abstract:

Spontaneous vesicles were formed by the combination of sodium dodecylselanylpropyl sulfate (SDSePS), a redox-responsive anionic surfactant, and a cationic surfactant dodecyltrimethylammonium bromide (DTAB). Then the redox reversible response behavior of the vesicles was explored. The results show that, under the action of H2O2, the divalent selenide group (-Se-) in the SDSePS can be oxidized to a tetravalent selenium sulfoxide group (-Se=O), and the spontaneous vesicles formed by SDSePS/DTAB are disintegrated into spherical micelles; and then under the action of Na2SO3, the tetravalent selenium sulfoxide group is reduced to a divalent selenide group, and the spontaneous vesicles formed by SDSePS/DTAB are regenerated; under the alternating action of H2O2 and Na2SO3, the spontaneous vesicles formed by SDSePS/DTAB can switch between the two states of micelles and vesicles over 10 times at least. The average radius of the regenerated vesicles formed by SDSePS/DTAB remained in the range of 115-130 nm.

Key words: sodium dodecylselanylpropyl sulfate, spontaneous vesicles, redox, reversible response

CLC Number: 

  • TQ423