基于纳米材料的表面分子印迹技术在食品安全检测中的应用

Application of surface molecular imprinting technology based on nanomaterials in food safety detection

近年来,基于分子印迹仿生识别技术的基础和应用研究层出不穷,并取得了瞩目的研究进展。分子印迹聚合物作为一种特异性高、稳定性强的仿生识别材料,在食品复杂基质净化、痕量目标物富集、新型仿生检测方法的开发等方面得到了广泛的应用。尤其是以纳米材料为基础的表面分子印迹识别材料,不仅克服了传统分子印迹材料吸附容量低、识别位点不均匀、传质速率慢等技术缺陷,并将纳米材料的荧光、高灵敏等优良特征与分子印迹专一识别、广泛适用等特征相结合,在食品安全、环境检测等领域得到广泛关注。本文介绍了以纳米材料为基础的表面分子印迹材料在食品安全检测领域的研究成果,详尽解析了各类纳米材料对表面分子印迹聚合物性能的提升情况,以期为纳米材料、表面分子印迹在分析检测领域的进一步深入研究提供理论依据。

In recent years,the basic and applied research based on molecular imprinting biomimetic recognition technology has constantly emerged and makes remarkable progress.As a kind of biomimetic identification material with high specificity and stability,molecularly imprinted polymer has been widely used in the purification of food complex matrix,enrichment of trace target and development of new biomimetic detection strategy.In particular,nanomaterials-based surface molecularly imprinted recognition materials not only overcome the defects of traditional molecular imprinted materials such as low adsorption capacity,uneven identification sites,slow mass transfer rate,but also combine the properties of fluorescence and high sensitivity of nanomaterials with the specific recognition and wide application of molecular imprinting,which have attracted extensive attention in food safety,environmental monitoring and other fields.This paper introduced the researches of nanomaterials-based surface molecularly imprinted materials in food safety detection,and analyzed the properties improvement of surface molecularly imprinted polymer by the introduction of various nanomaterials in detail,in order to provide a theoretical basis for the further study of nanomaterials and surface molecular imprinting in the field of analytical detection.