Ion-selective molecular inclusion of organic dyes into pH-responsive gel assemblies of zwitterionic surfactants

摘要: Surfactant-based gels have attracted considerable attention for molecular capture applications. Methods to promote selective of target molecules based on their discrimination behaviour are one route in the development gel formulations. In this work, it was demonstrated that highly efficient inclusion and unique ionicity and/or structure can be realized by adopting a pH-responsive sol–gel transition capture. The zwitterionic amphiphilic compound C16CA formed assemblies, which captured organic dye molecules. It found contributed due dyes hydrophobic inner core assemblies. also amine sites discriminated between via electrostatic interactions. 1H NMR analysis revealed cationic were included limited extent into gels, whereas anionic incorporated throughout hydrophilic domains. These differences capacities highlight selectivity transition. Furthermore, could selectively recovered released from gels.