What Types of Catalysts are Used in Antimicrobial Coatings?
1. Photocatalysts: Materials like titanium dioxide and zinc oxide are common photocatalysts that can be activated by light. When exposed to UV light, these materials generate ROS that can effectively degrade organic compounds and kill microorganisms.
2. Enzyme Catalysts: Enzymes like lysozyme can break down the cell walls of bacteria. Coatings with immobilized enzymes can provide a continuous antimicrobial effect.
3. Metal Nanoparticles: Silver, copper, and gold nanoparticles exhibit catalytic properties that can disrupt microbial cell membranes, leading to cell death. These nanoparticles can be embedded in coatings to provide long-lasting antimicrobial activity.
