Ginkgo biloba leaf polysaccharide stabilized palladium nanoparticles with enhanced peroxidase-like property for the colorimetric detection of glucose

References

ref title DOI material type comment
3786 599 Ginkgo biloba leaf polysaccharide stabilized palladium nanoparticles with enhanced peroxidase-like property for the colorimetric detection of glucose https://doi.org/10.1039/D0RA00680G Composite Ginkgo biloba leaf polysaccharide (GBLP) stabilized palladium nanoparticles (Pdn-GBLP NPs)

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
7825 599 Pdn-GBLP NPs TEM The sizes of Pd NPs inside of Pdn-GBLP NPs were investigated by TEM. Fig. 2 showed Pd NPs are spherical and monodisperse. The calculated average diameter of Pd NPs was 7.61 ± 1.74 nm for Pd41-GBLP; 9.62 ± 2.53 nm for Pd68-GBLP; 11.10 ± 2.76 nm for Pd91-GBLP and 13.13 ± 2.64 nm for Pd137-GBLP, respectively. The hydrodynamic size and zeta potential of Pdn-GBLP NPs were measured using DLS technology. As shown in Fig. 5a, the hydrodynamic size of Pd41-GBLP NPs was 21.4 nm for Pd41-GBLP NPs; 22.1 nm for Pd68-GBLP NPs; 23.1 nm for Pd91-GBLP NPs and 25.9 nm for Pd137-GBLP NPs.

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
6483 599 Pd91-GBLP POD H2O2 10.75 mM 4.93 -8 M/s 599 599
6482 599 Pd91-GBLP POD TMB 2.43 mM 22.6 -8 M/s 599 599

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5535 599 Pd91-GBLP NPs the colorimetric detection of glucose glucose Color 2.5-700 μM 1 μM