Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 11, Issue 37, Pages 8956-8965Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3tb00977g
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This work presents the fabrication of a Fe(III)-incorporated porphyrin-based conjugated organic polymer nanozyme for efficient detection of glucose and hydrogen peroxide. The material exhibits high chemical and thermal stability and can also act as an H2O2 sensor.
Nanozymes, i.e., nanomaterials that possess intrinsic enzyme-like behaviour, have thrived over the past few decades owing to their advantages of superior stability and effortless storage. Such artificial enzymes can be a perfect alternative to naturally occurring enzymes, which have disadvantages of high cost and limited functionality. In this work, we present the fabrication of an Fe(III)-incorporated porphyrin-based conjugated organic polymer as a nanozyme for the efficient detection of glucose through its intrinsic peroxidase activity and the amperometric detection of hydrogen peroxide. The ironincorporated porphyrin-based conjugated organic polymer (Fe-DMP-POR) possesses a spherical morphology with high chemical and thermal stability. Exploiting the peroxidase-mimicking activity of the material for the determination of glucose, a detection limit of 4.84 mu M is achieved with a linear range of 0-0.15 mM. The Fe-DMP-POR also exhibits a reasonable recovery range for the detection of human blood glucose. The as-synthesized material can also act as an H2O2 sensor, with a sensitivity of 947.67 mu A cm(-2) mM(-1) and a limit of detection of 3.16 mu M.
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