Journal
JOURNAL OF LUMINESCENCE
Volume 181, Issue -, Pages 8-13Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2016.08.046
Keywords
Fluorescence sensitization; Gemini surfactant micelles; Supramolecular hydrogels; Hybrid system
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Funding
- National Natural Science Foundation of China [51573064]
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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. (C) 2016 Elsevier B.V. All rights reserved.
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