The offered material is based on ZnO nanoparticles, modified with biocompatible polymer – chitosan. The material is characterized with high absorption properties of the sun's ultraviolet (UV) radiation. Also, high antibacterial activity against resistant bacterial strains and the absence of cytotoxic activity against human skin cells of the material were confirmed.
Multifunctional ZnO – biopolymer
The main advantages of the invention are:
- excellent absorption of UVA/UVB,
- low refractive index,
- chemical stability,
- antibacterial activity against resistant bacterial strains (Staphylococcus aureus, Escherichia coli),
- lack of cytotoxic effect against human keratinocytes.
Multifunctional ZnO – biopolymer composite resolves the risks associated with the use of semiconductor nanoparticles as active ingredients in sunscreen.
The material is the subject of patent application and the invention is still developed by the scientists from Faculty of Chemistry, Jagiellonian University.
Currently the Centre for Technology Transfer CITTRU is looking for the entities interested in the commercial applications of the described solution. CITTRU is looking for the business partners for joint research and development projects involving the above research topic.