TECH OFFER

Reactive Oxygen Generating Additive For Antimicrobial Protection And Air Purification

KEY INFORMATION

TECHNOLOGY CATEGORY:
Chemicals - Coatings & Paints
Environment, Clean Air & Water - Filter Membrane & Absorption Material
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TECHNOLOGY READINESS LEVEL (TRL):
LOCATION:
Singapore
ID NUMBER:
TO097487

TECHNOLOGY OVERVIEW

This technology is derived from photodynamic therapy and uses a photosensitizer molecule as the active agent for long-lasting, anti-microbial effect and air purification. This photosensitizer relies on the activation by light irradiation to produce active oxygen and reactive oxygen species (ROS) which can kill bacteria, viruses, fungi and mold, as well as disintegrate volatile organic compounds (e.g. formaldehyde) on contact.
 
The molecule is a conjugated compound based on an extraction from plant-based polylysine and an edible mineral. This technology disrupts the traditional use of toxic chemicals to kill microbes by replacing it with a safer, reactive oxygen generating catalytic molecule. It is effective against microbe contamination, minimising transmission of diseases. The technology has been formulated into various applications such as paints, textiles, hygiene products and polymeric films to name a few.

TECHNOLOGY FEATURES & SPECIFICATIONS

  • High efficacy and broad-spectrum, killing bacteria, viruses, fungi or mold (e.g. E. coli, Staphylococcus aureus, Candida albicans, Human herpesvirus) in 1 hour with >99.9999% efficiency
  • Long-lasting, safe and non-toxic
  • Synthesized in liquid or solid form
  • Active agent can be added as a functional additive into any cationic or neutral polymeric coating systems (e.g. polyurethane), both water and solvent-based
  • Low dosage requirement of active agent (0.1 – 0.5 wt%) will not affect properties of the original coating formulation

POTENTIAL APPLICATIONS

  • Paints and coatings for various substrates e.g. concrete, wallpaper, marble, fabrics, glass, metals, plastics, etc.
  • Air filters (in-situ fabrication and coating on filter surface)
  • Woven and non-woven fabrics and textiles e.g. face masks, medical scrubs, protective clothing, bandage, etc.
  • Additive for polymers (films, mobile phone covers) and paper/pulp products
  • Water purification solutions e.g. replacement of chemicals for sanitization of water
  • Hygiene and home care e.g. sanitisers, disinfectants, fabric softeners, etc.

Benefits

  • Active agent is safe, non-toxic and does not cause irritation to skin, eyes or mucous membranes
  • Non-leaching
  • Broad spectrum usage, effective against bacteria, viruses, fungi for various applications
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