层层自组装聚电解质膜光纤传感器的制备和应用

Preparation and Application of Fiber-Optic Sensors Based on Layer-by-Layer Self-Assembly Multilayers

在过去几十年中,光纤的应用已经渗透到多个学科领域。光纤的抗电磁干扰、可远程监控、多重监测、体积小及质量轻等特点,使其在传感器研究领域备受关注。聚电解质层层自组装膜构建的光纤传感器自2000年诞生以来,已快速发展成为传感器领域新的研究热点。该类光纤传感器在微量物质的监测方面具有广泛的应用前景。本文从光纤和光纤传感器优点出发,总结了基于层层自组装多层膜的光纤传感器种类、性能、检测原理以及相应的光纤结构和自组装材料;进而结合作者已做的相关工作,论述了在光纤基底上的聚电解质层层自组装及基于自组装膜的光纤传感器的测试;重点综述了近十年层层自组装膜的光纤pH传感器、湿度传感器、气体传感器、生物传感器及其他类型的光纤传感器的制备与应用,并展望了今后聚电解质层层自组装多层膜光纤传感器的发展。

During last several decades,optical fiber has been applied in many disciplines and areas.Among its kinds of applications,optical fiber sensors have become an interesting research project due to the advantages of optical fiber,such as immunity to electromagnetic interferences,capability of remote measurements,multiplexed detection,small size and low weight and so on.Optical fiber has been applied in fiber-optic sensors based on polyelectrolyte layer-by-layer（LbL） self-assembly multilayers have become into a hot research field since it was reported in 2000.It has widely application in measuring trace substances.In this paper,layer-by-layer self-assembly polyelectrolytes on the surface of optical fibers as well as test of fiber-optic sensors are introduced.The fiber-optic structures,assembly materials,detection principle and performance of different fiber-optic sensors based on multilayers nanocoating are also summarized.Particularly,the preparation,test and application of fiber-optic pH sensors,fiber-optic humidity sensors,fiber-optic gas sensors and fiber-optic biosensors in last decade are reviewed.The outlook of fiber-optic sensors based on LbL polyelectrolyte self-assembly multilayers is suggested.