量子点传感器在农药残留检测中的应用研究进展

Review on the Application of Quantum Dot-Sensors in the Detection of Pesticides

农药残留最终会通过水或其它食品被人体吸收。因此,很多研究致力于农药残留的定性和定量分析方法。基于传感器的量子点近年来在农残检测方面发展得很好。相比其它荧光材料,量子点(quantum dot,QD)材料拥有很多优良和独特的优点,并且荧光值很高,所以其在有机污染物探针方面的应用已成为研究热点。该文主要综述量子点材料作为荧光探针在检测水和果蔬中的农药残留的应用,讨论量子点荧光检测未来可以提升的空间,以增强其可选择性和稳定性。

High pesticide use,especially in agriculture,can lead to environmental pollution and potentially adverse health effects. As result,pesticide residues end up in different media,including water and food products,which may serve as direct routes for human exposure. There is thus a continuous drive to develop analytical methods for screening and quantification of these compounds in the different environmental media in which they may occur. Development of quantum dot(QD)based sensors for monitoring pesticides has gained momentum in recent years. QD materials have excellent and unique optical properties and have high fluorescence quantum yields compared to other fluorophores. They have thus been used in numerous studies for the development of probes for organic pollutants. The application as fluorescence probes for pesticide detection of QD materials was specifically reviewed in water,fruits and vegetables in this paper. The possible future improvements were discussed to enhance the selectivity and robustness of these sensors.