Application of TiO₂ nanomaterials for photocatalytic destruction of biological species and cancer therapy

Titanium dioxide (TiO₂), which is one of the most basic materials in our daily life, has emerged as an effective photocatalyst for environmental purification. In the past decade, research and development in the area of application of different nanostructured TiO₂ for photocatalytic destruction of biological species have become tremendous. This document briefly describes the applications of TiO₂ nanomaterials in photo-destruction of bacteria, fungi, and yeasts. Special emphasis is placed on the photocatalytic killing of cancer cells. Applications of TiO₂ nanomaterials in photocatalytic treating cancer through photodynamic and sonodynamic therapy (PDT) are discussed.