Pt nanoparticle-coupled WO2.72 nanoplates as multi-enzyme mimetics for colorimetric detection and radical elimination.

Abstract

Nanomaterials that exhibit enzyme-like activity (nanozymes) have attracted significant attention due to their potential for applications in analytical tests and in the biological field. In this study, an enzyme-like nanomaterial is developed by coupling Pt nanoparticles with WO2.72 (Pt/WO2.72). The resultant nanocomposite nanomaterial exhibits peroxidase activity and catalase activity. Moreover, owing to the presence of W6+ and W5+ in WO2.72, Pt/WO2.72 nanoplates demonstrate promise as scavengers of hydroxyl radicals. The Pt/WO2.72 composite nanoplates exhibit excellent peroxidase-like activity for the sensitive colorimetric detection of H2O2 and blood glucose. These Pt/WO2.72 nanoplates are thought to be a promising tool for broad potential applications in biomedicine, biotechnology, and environmental chemistry. Pt nanoparticles anchored WO2.72 nanoplates (Pt/WO2.72) as a multienzyme-like mimetics exhibits peroxidase activity and catalase activity. Furthermore, this composite can be acted scavengers of hydroxyl radicals.