Enzyme-Free Colorimetric Immunoassay for Protein Biomarker Enabled by Loading and Disassembly Behaviors of Polydopamine Nanoparticles

References

ref title DOI material type comment
4444 1262 Enzyme-Free Colorimetric Immunoassay for Protein Biomarker Enabled by Loading and Disassembly Behaviors of Polydopamine Nanoparticles https://doi.org/10.1021/acsabm.0c01167 Composite polydopamine-Fe(III) nanoparticles (PDA-Fe(III) 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
8277 1262 PDA-Fe(III) NPs 150 nm SEM As seen in Figure 1A, the scanning electron microscopy (SEM) image of PDA-Fe(III) NPs showed the characteristics of a spherical surface with a uniform surface, with a diameter of about 150 nm, and the corresponding element mapping analysis (1−4) also confirmed the uniform distribution of N, C, O, and Fe elements.

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

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
6128 1262 PDA-Fe(III) NPs quantitative detection of prostate-specific antigen (PSA) PSA colorimetric immunoassay 0.5-20000 pg/mL 0.84 pg/mL