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Nanotechnological solutions to fight bacteria and viruses

May 20, 2020

The impact of Covid19 has increased the need to develop products that help control or eliminate harmful bacteria and viruses for people.
These initiatives are advancing in different parts of the globe. Dr. Ricardo Ramírez Leiva referred to some of them mentioned in international publications (Nanotech) as Nanocoating with antiviral, antibacterial, antifungal agents, etc. that have low toxicity and can be used in the production of packaging, food, pharmaceuticals, but also in protective elements such as respiratory masks.
These products have great relevance in places of health care, medical devices and also in daily environments such as bathrooms and home kitchens, as well as in clothing and textiles susceptible to the growth of microorganisms. “The use of nanoparticles dispersed in high concentrations on the affected surfaces can play a decisive role in the fight against viruses and bacteria. However, it is important to note that an effective type of nanoparticle for antibacterial treatment is not necessarily useful as an antiviral and vice-versa, ”said Dr. Ramírez.
Examples of nanoparticles that deactivate some viruses, according to these reports, are: silver, gold, titanium dioxide, cerium dioxide, graphene oxide, silica, chitosan and copper chloride. But the material indicated to eliminate it will depend on the virus. While as antibacterial nanoparticles we can mention: zinc oxide, titanium dioxide, silicon dioxide, silver, copper oxide, nanocellulose and chitosan.


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