ZIF-67 as a Template Generating and Tuning “Raisin Pudding”-Type Nanozymes with Multiple Enzyme-like Activities: Toward Online Electrochemical Detection of 3,4-Dihydroxyphenylacetic Acid in Living Brains

References

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877ZIF-67 as a Template Generating and Tuning “Raisin Pudding”-Type Nanozymes with Multiple Enzyme-like Activities: Toward Online Electrochemical Detection of 3,4-Dihydroxyphenylacetic Acid in Living Brainshttps://doi.org/10.1021/acsami.0c05667MOFIn this work, the “raisin pudding”-type ZIF-67/Cu0.76Co2.24O4 nanospheres (ZIF-67/Cu0.76Co2.24O4 NSs) were obtained by rationally regulating the weight ratio of ZIF-67 and Cu(NO3)2 in the synthesis process.

Materials

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BET
b nanozyme
b 10n
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877ZIF-67/Cu0.76Co2.24O4 NSs100 to 250nmTEMSEM and TEM images are shown in Figure 1B,C with the size range of about 100−250 nm

Kinetics

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vmax 10n
vmax unit
kcat
kcat err
kcat 10n
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877ZIF-67/Cu0.76Co2.24O4 NSsOXDGSH0.484mM877

Applications

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877ZIF-67/Cu0.76Co2.24O4 NSsBased on its laccase-like activity, an online electrochemical system for continuous monitoring of 3,4-dihydroxyphenylacetic acid3,4-dihydroxyphenylacetic acid0.5−20μM0.15μM