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Updated: May 13, 2026
Hydrophobic Salt-modified Nafion for Enzyme Immobilization and Stabilization
Published on: July 11, 2012
Dispersibility-optimized carbon-based nanozymes via precursor morphology regulation: Dual-enzyme mimetic activity for
Chenyu Zhou1, Wanyi Zhang1, Yuhan Chen1
1Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China.
Abstract:
The high carbonization of carbon-based nanozymes makes them have poor hydrophilicity, and the dispersion in aqueous solution or biological medium is not ideal, which restrains their applications. In this work, we synthesized a novel ultra-thin copper/nitrogen doped carbon coated with Mo2N nanoparticles (Mo2N@CuNC) by pyrolysis of two-dimension Mo/Cu@ZIF, which was obtained via ion exchange using Na2MoO4 as the secondary metal source and morphology regulator on the basis of Cu@ZIF-L. Mo2N@CuNC showed significantly improved water dispersibility and excellent peroxidase-like and ascorbic acid oxidase-like activity. Based on the dual-enzyme mimicking activities of Mo2N@CuNC, a ratiometric colorimetric sensing platform for nitrite determination and a ratiometric fluorometric sensing platform for highly selective ascorbic acid determination were designed, respectively. Additionally, smartphone-assisted visual detection was successfully realized, demonstrating the great application prospects of dual-enzyme mimics in food and environmental analysis.
