Ultra-small and biocompatible platinum nanoclusters with peroxidase-like activity for facile glucose detection in real samples

References

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DOI
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889Ultra-small and biocompatible platinum nanoclusters with peroxidase-like activity for facile glucose detection in real sampleshttps://doi.org/10.1039/c9an01053jMetalHerein, ultra-small biocompatible jujube polysaccharide (JP) stabilized platinum nanoclusters (Ptn-JP NCs) are prepared using natural JP as a reducing and solubilizing agent.

Materials

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BET
b nanozyme
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889Ptn-JP NCs1.09-1.96nmTEMHere, the size of Pt NCs inside Ptn-JP NCs was measured by TEM. As shown in Fig. 1 and Fig. S2,† Pt NCs inside Ptn-JP NCs exist in a good monodisperse state. The calculated average diameters of Pt NCs inside Pt50-JP, Pt200-JP and Pt400-JP were 1.09 ± 0.23 nm, 1.78 ± 0.53 nm and 1.96 ± 0.59 nm, respectively.

Kinetics

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T
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889Ptn-JP NCsPODTMB4.0250.719mM51.33-8M/s889
889Ptn-JP NCsPODH2O24.0259.344mM12.49-8M/s889
889Ptn-JP NCsPODglucose0.019mM58.84-4M/s889
889Ptn-JP NCsSOD889
889Ptn-JP NCsPODTMB + H2O21.220.42mM0.930.24mM/min889

Applications

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889Ptn-JP NCsfor glucose detectionglucoseColor0.01 -1mM5.47μM