4.8 Article

Organic compound-based nanozymes for agricultural herbicide detection

Journal

NANOSCALE
Volume 15, Issue 31, Pages 12954-12960

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d3nr02025h

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An organic compound-based, peroxidase-like nanozyme (OC nanozyme) was synthesized for agricultural applications. It exhibited good kinetic properties, pH stability, and was successfully used for glyphosate detection. The authors believe that this agricultural-friendly nanozyme holds great potential for various agricultural applications.
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/K-m:0.056 mM and V-max:2.19 & mu;M 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.

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