Abstract: The conversion of sunlight into chemical energy using the photosynthetic machinery is at the hearth of Nature and Life. Scientists have also learned to use the energy of light to promote a great variety of chemical reactions, most of them based on redox processes involving electron transfer steps. Indeed, the area of photoredox catalysis has recently emerged as one of the hottest fields in synthetic chemistry. Many of the photoredox reactions so far discovered take place in homogeneous phases, and rely on the use of soluble photoresponsive catalysts. However, along recent years, there have been also many advances in the area of heterogeneous photocatalysis, most of which are based on the use of semiconductor materials like TiO2 as key photocatalytic system. These technologies have found different applications, especially in the field of sustainable chemistry and therapy. In this manuscript we review some of these applications, and the potential of TiO2‐based photocatalysts in biology and biomedicine.

External link: https://onlinelibrary.wiley.com/doi/abs/10.1002/cbic.201900229