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

References

ref title DOI material type comment
4075 889 Ultra-small and biocompatible platinum nanoclusters with peroxidase-like activity for facile glucose detection in real samples https://doi.org/10.1039/c9an01053j Metal Herein, ultra-small biocompatible jujube polysaccharide (JP) stabilized platinum nanoclusters (Ptn-JP NCs) are prepared using natural JP as a reducing and solubilizing agent.

Materials

ref material size size err size unit size type size comment BET b nanozyme b 10n b unit specific act sa 10n sa unit comment
8084 889 Ptn-JP NCs 1.09-1.96 nm TEM Here, 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

ref material enzyme type substrate pH T km km err km 10n km unit vmax vmax err vmax 10n vmax unit kcat kcat err kcat 10n kcat unit kcat/km kcat/km 10n kcat/km unit comment
6798 889 Ptn-JP NCs POD TMB 4.0 25 0.719 mM 51.33 -8 M/s 889
6797 889 Ptn-JP NCs POD H2O2 4.0 25 9.344 mM 12.49 -8 M/s 889
6793 889 Ptn-JP NCs POD glucose 0.019 mM 58.84 -4 M/s 889
6788 889 Ptn-JP NCs SOD 889
6783 889 Ptn-JP NCs POD TMB + H2O2 1.22 0.42 mM 0.93 0.24 mM/min 889

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5815 889 Ptn-JP NCs for glucose detection glucose Color 0.01 -1 mM 5.47 μM


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