Facile Preparation of Homogeneous Copper Nanoclusters Exhibiting Excellent Tetraenzyme Mimetic Activities for Colorimetric Glutathione Sensing and Fluorimetric Ascorbic Acid Sensing

References

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324Facile Preparation of Homogeneous Copper Nanoclusters Exhibiting Excellent Tetraenzyme Mimetic Activities for Colorimetric Glutathione Sensing and Fluorimetric Ascorbic Acid Sensinghttps://doi.org/10.1021/acsami.0c11983MetalHerein, a facile and green method for preparing monodisperse, homogeneous copper nanoclusters (Cu NCs) with smaller size was developed, which used cysteine as the template and hydrazine hydrate as a reductant to reduce Cu2+.

Materials

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BET
b nanozyme
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324Cu NCs2.5nmTEMThe as-prepared Cu NCs were approximately 2.5 nm in diameter

Kinetics

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324Cu NCsSOD·O2-324
324Cu NCsPODH2O22.52mM1.68-7M/s324M-1 s-1
324Cu NCsCATH2O2207.1mM418.4μM/s324
324Cu NCsAAOAA0.46mM23.5-4M/s1/s324M-1 s-1
324Cu NCsPODTMB1.125mM0.72-7M/s324324

Applications

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324Cu NCsdetection of H2O2H2O2Color0.01-1mM5.6μM
324Cu NCsdetection of GSHGSHColor1-150μM0.89μM
324Cu NCsdetection of AADFQFluor0.5-30μM0.144μM