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TiO2 coatings on the polymers
keywords: titanium oxide(IV), photocatalyst, disinfection
offer number: P-170
The subject of the offer is preparation method of nanocrystalline titanium oxide(IV) coatings, surface-modified with organic compound.


Photoactive TiO2 irradiated with ultraviolet light demonstrates antiseptic, fungicidal, disinfecting and odour-neutralizing properties. Coatings of titanium oxide (IV) are useful when they modify polymer surfaces, as nanocrystalline titanium oxide (IV) or nanocrystalline titanium oxide(IV) but surface-modified with organic compound.


The material according to the present invention exhibits photocatalytic activity when

irradiated with visible light or ultraviolet light. As a result of light exposure, Reactive Oxygen Species (OH, O2, H2O2, 1O2) responsible for oxidation of organic compounds and decay of microorganisms are formed.

commercial utility:


The method may be used for production of self-cleaning surfaces as well as disinfection, sterilization or odour-neutralizing agents.

Characterization and proofs

The application of photocatalytic coatings of TiO2 relates to sterilization of plastic elements, (like  polyurethane (PU), polycarbonate (PC), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE)) used in:

-  medicine;

-  pharmaceuticals packaging;

-  production: photosterilizing materials, photobactericidal, photofungicidal materials.


The activity of obtained coatings was specified with solutions of azure B, as model pollution for photocatalytic activity tests. A sample of plastic with the synthesized TiO2 coating was impregnated and irradiated for period of 3 h. During the indicated time almost complete degradation of the dye was observed.


This technology is patented in the area of Poland, Germany, France, Italy, Austria, Switzerland, Japan and China and is subject of patent application in the area of India and Korea (with priority date 23/07/2012).


Further development of the invention is under progress at the Faculty of Chemistry, Jagiellonian University.

Logos od European Funds, Republic of Poland, Inkubator Innowacyjności 2.0, European Union

field of science: chemistry, microbiology, chemical technology
forms of protection: patent
technological maturity: demanding R & D, implemented
property rights: Jagiellonian University
variants of cooperation: license, spin-off company, comercial contract research, sale

information / broker of Jagiellonian University

name and surname: Agata Błaszczyk-Pasteczka
phone number: +48 12 664 42 12, +48 506 006 553
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