AMBIO

A new report by Markets and Markets foresees that the global antimicrobial coatings market will reach 4190 million USD by 2021, at a CAGR of 12.1% from 2016 to 2021.

Antimicrobial coatings can be applied to a variety of surfaces, from shoes to furniture and even buildings to prevent colonization by microorganisms responsible for spreading disease or damaging the functional and esthetic properties of the materials.

Matera’s technology is durable, capable of inactivating bacteria and viruses upon contact, by disturbing and ultimately bursting their membrane. The action mechanism of Matera’s technology does not require leaching of the active component, unlike current technologies using silver ions. The microorganisms are exposed only to high surface bound concentrations of biocide, and not to progressively decreasing amounts diluted in the medium. Because the target of Matera´s technology is the membrane, a microorganism would have to redesign its membrane to develop resistance, which represent an expensive solution for most microbes. Therefore, it is less likely to develop resistant microbes than other commercial technologies.

Matera’s technology is patent-protected and scientifically validated (PCT/EP2013/058166).

The main applications Matera is focusing on currently include door handles, plywood, textiles and paints.

Door handles:

AMBIO nanoparticles were effectively included in the industrial process of a door handle producer, in liquid coating, powder coating and anodized aluminium, yielding coatings with high antimicrobial activity.

 

Liquid coating


Antimicrobial activity of liquid coated door handles with AMBIO coating compared to untreated samples.

   

Anodized aluminium

AMBIO modification of anodized aluminium door handles does not change the look and feel of the material. Above: Uncoated, Below: AMBIO coating.

 

AMBIO treatment of anodized aluminum door handles is resistant to wear. The samples maintain high antimicrobial activity after 5000 cycles of simulated use.

 

 

Furniture and construction material:

Coating for plywood

Samples of melamin coated plywood. Left: without treatment, Right: with AMBIO coating.

  • Kills > 90%of Staphylococcus aureus and >50% of Escherichia coli in under 3h and > 95% of H1N1 influenza virus in less than 20 minutes.
  • Coating does not change the color or texture of the finish.

The samples maintain their activity after at least three months accelerated ageing, unlike samples treated with silver.

Antimicrobial activity of melamine coated plywood after two weeks of accelerated ageing by immersion in water. The bars represent microbial survival. Surfaces modified with Ambio have high antibacterial and antiviral activity when compared with a commercial silver based product.


 

Antibacterial activity of melamine coated plywood samples modified with AMBIO after two years of storage.

 

 

CR/15/BIO01: In vitro irritation assessment on SkinEthic reconstituted human epidermis, following OECD 439 guideline for the testing of chemicals. Surfaces treated with AMBIO do not cause skin sensitization.

 

 

Textile: 

Coating for upholstery

  • Reduces bacterial load by > 90%(ISO 20473)
  • Causes disruption of the microbial membrane upon contact with the surface.
  • Does not change the color or feel of the fabric.

Activity is maintained after exposure to:

  • Heat: 1 month exposure to daily cycles of 70°C for 8h
  •  Water: 1 month immersion, with weekly change of water
  •  Abrasion: 500 cycles of abrasion with P600 sandpaper

 

Samples of upholstery with 2 x 2 cm. A: Left: non-tretated, right: upholstery treated with Matera nanoparticles. B: Left: treated upholstery before abrasion ageing, right: treated upholstery after 500 cycles of abrasion.