Issue 31, 2023

Organic compound-based nanozymes for agricultural herbicide detection

Abstract

Nanozymes are increasingly being used for agricultural applications, but their adoption is limited as they are generally considered toxic, have low cost-effectiveness, and pose complexity of fabrication. In this study, an organic compound-based, peroxidase-like nanozyme (OC nanozyme) was developed for use in the agricultural environment. This nanozyme was synthesized through a self-assembled one-pot particle synthesis process, interacting with urea and the metal ion to form a homogenous nanoparticle containing partially mimicked cofactors (Fe–N) of the natural enzyme. The OC nanozyme exhibited decent kinetic properties (H2O2/Km:0.056 mM and Vmax:2.19 μM s−1) and pH stability. The OC nanozyme was successfully used to detect glyphosate via integrated colorimetric assay, with a good limit of detection (LOD) of at least 0.001 ng mL−1. The authors envision that this agricultural-friendly OC nanozyme holds great potential for a wide range of agricultural applications.

Graphical abstract: Organic compound-based nanozymes for agricultural herbicide detection

Supplementary files

Article information

Article type
Paper
Submitted
01 mei 2023
Accepted
13 jul 2023
First published
28 jul 2023

Nanoscale, 2023,15, 12954-12960

Author version available

Organic compound-based nanozymes for agricultural herbicide detection

D. H. Lee and M. Kamruzzaman, Nanoscale, 2023, 15, 12954 DOI: 10.1039/D3NR02025H

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