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Moléculas fotoactivas para descontaminación y desinfección

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOFR20140528002
Publicado:
22/06/2015
Caducidad:
27/12/2015
Resumen:
Un laboratorio francés ha desarrollado nuevas moléculas fotoactivas con fines de descontaminación y desinfección. Esta tecnología es eficiente incluso en bajas concentraciones. Las moléculas bioactivas son estables y pueden incorporarse en diferentes materiales, como fibras de papel y textiles o vidrio. La tecnología se basa en una molécula bioactiva que, en presencia de luz UV, visible, natural o artificial, transforma el oxígeno (o agua) en oxígeno reactivo. El oxígeno reactivo oxida los contaminantes orgánicos o destruye determinados microorganismos. Se buscan socios industriales con el fin de establecer acuerdos de licencia.

Details

Tittle:
Photoactive molecules for decontamination and disinfection
Summary:
A South West France laboratory has developed new photoactive molecules which are able to decontaminate and disinfect. This technology is efficient even at low concentration. Moreover, the photoactive molecules are stable and can be grafted onto several kind of materials as textile and paper fibers, glass. The laboratory is seeking industrial partners for licensing agreements.
Description:
Titanium oxyde is used for confering decontamination and disinfection properties to materials but the drawback of this technique is that it requires UV irradiation.

The offered technology is based on a photoactive molecule able, in the presence of UV or visible, natural or artificial light, to transform the oxygen (or water) into reactive oxygen. This one can then selectively oxidize organic pollutants by oxidation or destroy certain microorganisms.
Furthermore, the original molecule operates according to the following scheme:
o It is activated by wavelengths from 400 to 450 nm with a absorption peak at 420 nm
o In the presence of oxygen, it generates a reactive form: the singulett oxygen. It can degrade pollutants, particularly sulfur derivatives (Sulfides, disulfides) or microorganisms (Bactericidal activity was validated on Escheridia Coli in aqueous solution by a laboratory specialized in this type of analysis).
The technology is interesting for air and water treatment, deodorization and disinfection applications.
The laboratory is looking for partners as manufacturers of glass, cements, paper, textile, or air purifiers for granting a license and developping products from this technology.
Advantages and Innovations:
The molecule has several competitive advantages over commercial products but also complementarities with TiO2 (Titanium oxyde) :
o No photo-aging observed: the molecule remains functional beyond 5 cycles
o Stable in many solvents and up to 150 ° C
o The oxidized products stay on the matrix surface
o Easy cleaning and regeneration by a simple washing
o Possibility of deposition on silica monoliths by keeping an activity at depth of several centimeters
o Activity to very low concentrations
o Excellent absorption properties of the light and high efficiency
This molecule which is neither soluble nor volatile, has the advantage of being graftable onto various types of rigid or flexible supports such as clay, polymers, textile fibers, glass.
By grafting the molecules on the TiO2 nanoparticles, the advantages are complementary with the photocatalytic properties of the nanoparticles.
Stage of Development:
Under development/lab tested
IPs:
Patents granted
CommeR Statunts Regarding IPR Status:
The technology is protected by a patent registered in France since 2010 and extension to other countries would be possible if needed.

Partner sought

Type and Role of Partner Sought:
The laboratory is looking for industrial partners in the field of glass, cements, paper, textile, or air purifier for licensing. The partner would have to acquire the technology and the know-how, to test the molecules on their materials, to run decontamination/disinfection test.

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
French

Keywords

Technology Keywords:
03004005 Fibras artificiales
02007018 Materiales textiles avanzados
02002002 Recubrimientos
02007013 Tecnología del papel