Catalytically active iron oxide nanoparticles are used as recognition elements and signal amplifiers for the array-based colorimetric sensing of proteins. Interactions between cationic monolayers on the Fe3O4 NPs and analyte proteins differentially modulates the peroxidase-like activity of Fe3O4 NPs, affording catalytically amplified colorimetric signal patterns that enable the detection and identification of proteins at 50 nM.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.