基于有机纳米纤维薄膜的荧光化学传感

薄膜荧光化学传感提供了一种固相、便携、易操作的气相分子检测技术,在环境、安全、生物医学、健康监测等领域具有重要的应用价值和发展前景.基于本课题组在超分子自组装构建n-型有机半导体苝二酰亚胺衍生物(PTCDI)一维纳米纤维及其荧光薄膜检测胺类等气相分子领域研究,结合其他课题组工作,本文阐述了该类纳米纤维多孔薄膜在结构调控,荧光传感应用性能、机制和意义方面的研究进展.同时,也介绍了本课题组在p型有机半导体咔唑角亚乙炔四环(ACTC)和咔唑三聚体等在本领域的进展,最后对未来挑战和发展方向进行了展望.

Fluorescent chemosensor based on organic nanofibril thin-films

Thin-film fluorescent chemosensor provides a solid state,portable and easy-to-use technology for detecting gas phase molecules,and thus holds great potential for development and application in the fields of environment,safety,biomedicine and health monitoring.Based on our group’s research on the construction of one-dimensional nanofibers of n-type organic semiconductor,particularly perylene tetracarboxylic diimide derivatives(PTCDIs),via supramolecular self-assembly and their fluorescent films for the vapor detection of chemicals like amines,together with the relevant work from other groups,this paper summarizes the recent research progress,regarding the structural control,fluorescent sensor performance and mechanisms,and the effect of the porosity of nanofibril films.Our study on the nanofiber sensors fabricated from p-type organic semiconductors such as alkoxycarbonyl-substituted,carbazole-cornered,aryleneethynylene tetracycle(ACTC)and carbazole trimer is also briefed.At the end,the future challenge and perspectives in the research and development of organic nanofibril fluorescent sensors is discussed.