光电化学传感器及其在生物分析中的应用研究进展

摘要

Photoelectrochemical (PEC) sensor is a recently developed analytical device based on the process of chemical or biological recognition,which has the advantage of rapid response,high sensitivity.Moreover,the PEC sensor is simple,cheap and easy to realize miniaturization.As a result,PEC sensors have received intense interest in the fields of biological and environmental analysis.The basic principle,classification of PEC sensors,and the photoelectric active nanomaterials for the fabrication of PEC sensors are reviewed.Finally,the applications of PEC sensors in the fields of bioanalysis such as DNA detection,immunosensing and enzyme analysis are presented.%光电化学传感器是近年来发展起来的一种基于化学或生物识别过程的分析设备,因具有响应快速、灵敏度高、设备简单、价格低廉且易于微型化等优点,在生命分析和环境分析等领域受到了广泛关注.首先介绍了光电化学传感器的基本原理、分类及用于构建该类传感器的光电活性纳米材料,在此基础上进一步综述了光电化学传感器在生物分析中的应用,如用于DNA检测、免疫传感及酶分析等.