Nanozyme-Participated Biosensing of Pesticides and Cholinesterases: A Critical Review

Author:

Zhu Hengjia,Liu Peng,Xu Lizhang,Li Xin,Hu Panwang,Liu Bangxiang,Pan Jianming,Yang Fu,Niu XianghengORCID

Abstract

To improve the output and quality of agricultural products, pesticides are globally utilized as an efficient tool to protect crops from insects. However, given that most pesticides used are difficult to decompose, they inevitably remain in agricultural products and are further enriched into food chains and ecosystems, posing great threats to human health and the environment. Thus, developing efficient methods and tools to monitor pesticide residues and related biomarkers (acetylcholinesterase and butylcholinesterase) became quite significant. With the advantages of excellent stability, tailorable catalytic performance, low cost, and easy mass production, nanomaterials with enzyme-like properties (nanozymes) are extensively utilized in fields ranging from biomedicine to environmental remediation. Especially, with the catalytic nature to offer amplified signals for highly sensitive detection, nanozymes were finding potential applications in the sensing of various analytes, including pesticides and their biomarkers. To highlight the progress in this field, here the sensing principles of pesticides and cholinesterases based on nanozyme catalysis are definitively summarized, and emerging detection methods and technologies with the participation of nanozymes are critically discussed. Importantly, typical examples are introduced to reveal the promising use of nanozymes. Also, some challenges in the field and future trends are proposed, with the hope of inspiring more efforts to advance nanozyme-involved sensors for pesticides and cholinesterases.

Funder

Postgraduate Research and Practice Innovation Program of Jiangsu Province

State Key Laboratory of Urban Water Resource and Environment

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Clinical Biochemistry,General Medicine

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