Well-water-dispersed N-trimethyl chitosan/Fe3O4 hybrid nanoparticles as peroxidase mimetics for quick and effective elimination of bacteria

References

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880Well-water-dispersed N-trimethyl chitosan/Fe3O4 hybrid nanoparticles as peroxidase mimetics for quick and effective elimination of bacteriahttps://doi.org/10.1080/09205063.2020.1733751Compositegreen polyethylene glycol (PEG)-functionalized magnetic/Ntrimethyl chitosan (CS) hybrid nanoparticles (Fe3O4@PAA/TMC/ PEG NPs) with improved water dispersibility, superparamagnetism, high saturation magnetization and well peroxidase-like activity. The functionalized coating was divided in two steps

Materials

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BET
b nanozyme
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880Fe3O4@PAA/TMC/PEG100nmTEMFigure 1 showed the TEM images of Fe3O4 NPs, Fe3O4@PAA/PEG/CS NPs and Fe3O4@PAA/TMC/PEG NPs. The Fe3O4 NPs (Figure 1(A)) exhibited a rough surface with the diameter of 100 nm,

Kinetics

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vmax 10n
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kcat/km 10n
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880Fe3O4@PAA/TMC/PEGPODTMB + H2O2880

Applications

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880Fe3O4@PAA/TMC/PEGsterilizationE.coli and S.aureus bacteria.