适配体传感器在农药残留检测中的应用

基于脱氧核糖核酸的生物检测技术在食品中有毒有害物质检测方面发挥着日益重要的作用。其中,作为一类具有良好应用前景的分析工具,以适配体技术为基础的快速检测方法与传统检测方法相比,具有简单便携、响应迅速、灵敏度高、特异性好、成本低等显著优势,因此在近些年成为分析检测领域研究的热点之一。该文总结了近几年应用于食品安全特别是农药残留检测的几种适配体检测技术(包括比色法、荧光法以及电化学法),并对其检测特点及应用进行了介绍。

Applications of Aptasensor in Determination for Pesticide Residues

DNA based biosensors have become increasingly important in hazardous and toxic substances detection.Particularly,the aptamer-based methods have been intensively investigated as potential analytical tools providing desired portability,fast response,high sensitivity and specificity in addition to lower cost against classical methods.Some of the techniques for detection of aptasensors(including colorimetric,fluorescent and electrochemical assays) in the last few years were summarized,and their detection characters and applications were discussed.