Photocatalytic TiO2 nanoparticles damage to cellular membranes and genetic supramolecules

Abstract

Photocatalytic TiO₂ nanoparticles are effective photocatalyzers which can damage the cellular membranes and genetic supramolecules such as DNA. In this experiment, we observed the lesion efficacy of the photocatalytic TiO₂ nanoparticles upon the cellular membrane and genetic molecule by transmission electron microscopy and single cell gel electrophoresis assay, and the mechanisim of the cell death by photocatalytic TiO₂ nanoparticles.