ArticleMikrochimica acta2026
A colorimetric-SERS sensor based on MXene nanosheets loaded with Fe
Article in Mikrochimica acta, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A novel MXene nanosheet-supported Fe₃O₄@Ag nanozyme, designed for the dual-mode colorimetric and surface-enhanced Raman scattering (SERS) detection of the pesticide thiram in fruits is presented. The composite ingeniously integrates three key functions: magnetic enrichment, SERS signal amplification, and peroxidase-like nanozyme activity. The resulting nanozyme sensor demonstrates high sensitivity and specificity for thiram detection. The colorimetric method showed a linear range of 0.05 µM to 30 µM with a LOD of 0.016 µM, while the SERS method exhibited a linear range of 10− 4 M to 10− 8 M with a LOD of 3.44 × 10− 9 M. This performance satisfies the demands for agricultural safety monitoring. The present work highlights the significant potential of the developed colorimetric-SERS dual-mode nanozyme platform for on-site pesticide residue determination .
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