TiO₂ Nanoparticles Based Peroxidase Mimics for Colorimetric Sensing of Cholesterol and Hydrogen Peroxide

Abstract

It's still a challenge to detect cholesterol more rapidly and easily. As a result, using a colorimetric sensor to detect cholesterol may result in the development of a ready-to-use. This research shows how a TiO2 nanoparticles may be utilized as a peroxidase mimic to detect H2O2 and free cholesterol. The TiO2 Nanoparticles was carefully studied in terms of structural, morphological, and functional characteristics. In the existence of cholesterol oxidase, and the proposed approach comprises detecting H2O2 produced during cholesterol oxidation. The TiO2 nanoparticles sensor has shown good cholesterol detection sensitivity with a LOD as low as 0.061 M and a linear response in the 0.1 mM to 50 mM range.