量子点标记免疫分析技术在食品安全检测中的应用现状

Application of Quantum Dots-based Immunoassay in Food Safety Detection

基于抗原抗体特异性识别的免疫分析技术具有反应条件温和、分析时间短、特异性强、灵敏度高等优点,被广泛应用于食品安全检测领域。量子点(quantum dots,QDs)作为一种新型荧光纳米材料,具有斯托克斯位移大、光稳定性好、量子产率高、发射波长可调等独特的优点,可提高免疫分析技术的灵敏度和稳定性。该文对基于QDs标记的免疫分析技术在食品安全检测中的应用和发展前景进行综述,以期为食品安全检测技术的发展提供新思路。

Based on specific recognition of antigen and antibody,immunoassay is widely used in food safety detection owing to the mild reaction conditions,short time,specificity,and high sensitivity.As a new type of fluorescent nanomaterials,quantum dots(QDs)feature large Stokes shift,optical stability,high quantum yield,and tunable emission in visible wavelengths,which can improve the sensitivity and stability of immunoassay.This paper reviews the application and development prospect of QDs-based immunoassay in food safety detection,which is expected to provide a reference for the development of food safety detection technology.