Colorimetric immunoassay for rapid detection of Staphylococcus aureus based on etching-enhanced peroxidase-like catalytic activity of gold nanoparticles

References

ref title DOI material type comment
3846 660 Colorimetric immunoassay for rapid detection of Staphylococcus aureus based on etching-enhanced peroxidase-like catalytic activity of gold nanoparticles https://doi.org/10.1007/s00604-020-04473-7 Composite A novel colorimetric immunoassay for the detection of Staphylococcus aureus (S. aureus) based on a combination of immunomagnetic separation and signal amplification via etching-enhanced peroxidase-like catalytic activity of gold nanoparticles (AuNPs) was developed.

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
7877 660 Fe3O4/Au NPs 20.37 0.58 nm TEM The particle size of a single particle increases from 8.3 ± 0.25 nm (Fig. S2a) to 20.37 ± 0.58 nm.

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
6541 660 Fe3O4/Au NPs POD 660

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5589 660 Fe3O4/Au NPs detection of Staphylococcus aureus S. aureus Color 10 ~ 1000000 cfu/mL 10 cfu/mL