Fluorescent sensitization of gemini surfactant micellar-hybridized supramolecular hydrogels

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• 作者：Cheng Fu^a ; Dan He^c ; Yanhua Yu^a ; Shan Wu^a ; Changzhi Dong^a ; Hong Wang^b ; ^{hongwzy@mail.hust.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Fluorescence sensitization ; Gemini surfactant micelles ; Supramolecular hydrogels ; Hybrid system
• 刊名：Journal of Luminescence
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：181
• 期：Complete
• 页码：8-13
• 全文大小：1233 K

文摘

Fluorescence enhancement of the fluorescence probe 1,8-anilinonaphthalenesulfonicacid (ANS) in micellar-hybridized supramolecular hydrogels consist of micelles formed by gemini surfactant (GS) and supramolecular hydrogels formed by self-assembly of hydrogelator N,N^′-Dibenzoyl-L-cystine (DBC) was investigated by steady state fluorescence and time-resolved fluorescence. An optimum ratio of GS/DBC was obtained by maximum fluorescence quantum yield of ANS. The fluorescence images show that ANS were dispersed in the micellar-hybridized supramolecular hydrogels. The fluorescence intensity of ANS in the micellar-hybridized supramolecular hydrogels was significantly increased in comparison with that in corresponding aqueous solutions and DBC hydrogels. SEM images indicated that the microscopic morphology of micellar-hybridized DBC gels possessed a three-dimensional network structure. The results implied that the micellar-hybridized supramolecular hydorgels can form more complex structure compared to hydrogels. It is suggested that the fluorescence of the probe within the hybridized system is a facile and sensitive method to monitor the structure of the micellar-hybridized supramolecular hydrogels.