title: Dansyl-labeled anionic amphiphile with a hexadecanoic carbon chain: synthesis and detection for shape transitions in organized molecular assemblies.
abstract: The probing properties of a new fluorophore-labeled anionic surfactant, sodium 16-(N-dansyl)aminocetylate (16-DAN-ACA) were investigated systematically in molecular assemblies, especially in the transitions between micelles and vesicles. 16-DAN-ACA can efficiently differentiate the two different aggregate types in mixed cationic and anionic surfactant systems. The fluorescence anisotropy of 16-DAN-ACA was found to be sensitive for directly detecting the micellar growth in micelles containing oppositely charged surfactants; both cationic cetyltrimethylammonium bromide (CTAB) systems and anionic sodium dodecyl sulfate (SDS) systems were studied. The results indicated that the 16-DAN-ACA is a good fluorescent probe for differentiating the different aggregates, and even more can be used to detect the micellar growth.
authors.affiliation: Engineering Research Center of Transportation Materials (Ministry of Education), School of Materials Science and Engineering, Chang'an University, Xi'an 710064, PR China. Electronic address: lngao@chd.edu.cn.
authors.forename: Lining
authors.initials: L
authors.lastname: Gao
authors.affiliation: Engineering Research Center of Transportation Materials (Ministry of Education), School of Materials Science and Engineering, Chang'an University, Xi'an 710064, PR China.
authors.forename: Huiyun
authors.initials: H
authors.lastname: Xia
authors.affiliation: Engineering Research Center of Transportation Materials (Ministry of Education), School of Materials Science and Engineering, Chang'an University, Xi'an 710064, PR China.
authors.forename: Xiaoman
authors.initials: X
authors.lastname: Wang
authors.affiliation: Engineering Research Center of Transportation Materials (Ministry of Education), School of Materials Science and Engineering, Chang'an University, Xi'an 710064, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.affiliation: Engineering Research Center of Transportation Materials (Ministry of Education), School of Materials Science and Engineering, Chang'an University, Xi'an 710064, PR China.
authors.forename: Huaxin
authors.initials: H
authors.lastname: Chen
mesh_terms: D000838:Anions; D016880:Anisotropy; D002244:Carbon / Q000737:chemistry*; D002412:Cations; D003619:Dansyl Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D008823:Micelles; D012995:Solubility; D013050:Spectrometry, Fluorescence; D013501:Surface-Active Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D014783:Viscosity; D014867:Water / Q000737:chemistry
chemical_list: D000838:Anions; D002412:Cations; D003619:Dansyl Compounds; D008823:Micelles; D013501:Surface-Active Agents; D014867:Water; D002244:Carbon
keywords: Aggregates transition; Dansyl; Fluorescence probe; Micellar growth