New Supramolecular Structures Based on Silver Nanoparticles and Micelle-Like Aggregates from Cetyltrimethylammonium Bromide

A method is proposed for the synthesis of new supramolecular structures consisting of silver nanoparticles (NP), the surface of which is covered with spontaneously formed ordered micelle-like aggregates of cetyltrimethylammonium bromide (CTMAB) molecules. In studying the processes of the self-assembly of CTMAB molecules on the surface of silver nanoparticles and the structure of associates formed in this case, the method of fluorescent probes (molecular probe pyrene) is used. The optimal conditions for obtaining new supramolecular structures are determined. The proposed supramolecular structures can be used for the luminescence determination of various chemical compounds. At that the formation of an analytical signal will be determined by the interaction of the analyte with micelle-like aggregates located near the silver NP and will depend on both the structure of the aggregate and the polarity of the analyte.