PhotoNANOX

PhotoNANOX™ is a cutting-edge photosensitising nanocomposite material engineered to deactivate microbial biofilms and degrade organic contaminants in water systems. The material combines porphyrin-based photosensitisers—specifically indium derivatives—with semiconductor metal oxide nanoparticles such as titanium dioxide (TiO₂). Upon exposure to visible or actinic light, PhotoNANOX™ generates reactive oxygen species (ROS) that destroy microorganisms and break down pollutants at the molecular level. The nanocomposite can be applied as a surface coating or integrated within polymer matrices (e.g., polystyrene), creating self-disinfecting materials for use in water treatment infrastructure and public health environments.

Developed using green synthesis techniques, including orange juice-assisted nanoparticle fabrication and room-temperature processing, this technology represents a sustainable advance in photocatalytic purification and antimicrobial surface design.