Self-cleaning Transparent Antimicrobial Surface Coating

Technology overview

Antimicrobial coating is an effective way to slow down the spread of pathogens on surfaces by inactivating bacteria, viruses and fungi when they contaminate a surface. Despite being commercially available, the cost and durability of the anti-microbial coating technology can still be improved. Common commercial coatings available to consumers gradually lose their antimicrobial strength and typically last only a few months. Longer-lasting coatings exist for industrial coating producers, but are manufactured with exotic and expensive processes. RP has developed a cost-effective process for fabricating antimicrobial coatings. These coatings have been tested to be durable with high antimicrobial efficacy.

Technology features

• A metal oxide-based nanowire layer coating obtained through Chemical Bath Deposition.

• The coating has been tested* to be more mechanically durable than commercially available coatings.

• A multi-functional coating with antimicrobial, antireflective and photocatalytic properties.

• Effective even without UV light.

• Proven to work using ISO22196 testing, with >99% efficacy.

*tested in-house with an oscillating abrasion tester and zirconia balls as the abrasive media.

Potential applications

• High-touch surfaces, e.g. touch display panels

• Self-cleaning coating for building facades

• PV System

• Air/water purifying coating

Benefits

• Antimicrobial with high efficacy

• High transparency, suitable for glass surfaces and screens

• Durable

• Self-cleaning, reducing the amount of labour and chemicals needed for disinfection

• Cost-effective

Commercialisation

This technology is available for licensing and technology transfer.

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