【作者】 何亮； Bogumil E.Brycki； Iwona H.Kowalczyk； Edvta Kuliszewska； 杨亚江； 王宏；

【Author】 Liang He~1,Bogumil E.Brycki~2,Iwona H.Kowalczyk~2,Edyta Kuliszewska~3,Hong Wang~(*1),Yajiang Yang~(1*) 1School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074 China.2 Faculty of Chemistry,Adam Mickiewicz University,Poznan 60780,Poland.3 Institute of Heavy Organic Synthesis "Blachownia", Kedzierzyn-Kozle,47-225,Poland

【机构】 化学与化工学院,华中科技大学； Faculty of Chemistry,Adam Mickiewicz University； Institute ofHeavy Organic Synthesis "Blachownia",Kedzierzyn Koz1e,47-225,Poland；

【摘要】 <正>杂化组装是构建具有不同功能的复杂纳米结构材料的有效途径之一。本文提出了一种电化学方法表征胶束杂化体系形成的新策略。本文通过双子表面活性剂12-12-12胶束和凝胶因子N,N’-二苯甲基-L-半胱氨酸(DBC)形成的超分子聚集体构建杂化组装体系,采用对疏水环境敏感的亚甲蓝(MB)为电化学探针对杂化体系的形成进行了研究。相更多还原

【Abstract】 The hybrid assembly is one of an effective way of construct novel nano-structured architectures with different functions.Here,we present a new strategy of characterization the formation of micellar hybrid assembly system byelectrochemical method.In this work,the hybrid system was formed by Gemini surfactant（12-12-12） micelles and hydrogelator N,N’-diphenyl-methyl-L-cysteine（DBC） supramolecular aggregates.Electrochemical probe methylene blue（MB） was employed to monitor the formation of the hybrid system.The results show that the difference of formal potential of MB(△E^0,) of aqueous solution and 12-12-12 micellar solution is only 6.5 mV,and it is independent of the surfactant concentration;However,AE0’ of MB of DBC/12-12-12 hybrid assembly system and DBC assembly system is 46.5 mV and it exhibits a significant increase with the increase of 12-12-12 micelle concentration,indicating that the hydrophobic microenvironment in the micellar hybrid assembly system is gradually increased.The fluorescence micrographs show that MB solubilizes in micellar hybrid supramolecular systems.The peak current of MB decreased in the hybrid assembly system,suggested that the micellar hybrid assembly system hinder the diffusion of the MB.It was also founded the diffusion coefficient of MB in micellar hybrid assembly system decreased compared with that in DBC assembly system due to the dense structure of the hybrid assembly system.Compared to the traditional characterization method,such as electron microscopy or fluorescence spectra,the electrochemical approach can characterize the formation process of hybrid assembly system simply and accurately.更多还原