Looking for a material that is active against bacteria and viruses i.e. it is anti-bacterial and anti-viral. Also when applied to a plastic film stable with anti-bacterial and anti-viral for 2-3 months. Thus it is self dis-infecting and when coated on plastic film it will help prevent infection and transmission of infecting agent.
Dear Dr. Kruti Shah,
I suggest you to have a look at the following, interesting product:
- Self-disinfecting coating that lasts for 3 months applied to all HDB lift buttons in Singapore
For more details, please see at the source:
https://www.straitstimes.com/singapore/health/self-disinfecting-coating-that-lasts-for-3-months-applied-to-all-hdb-lift-buttons
and
https://www.channelnewsasia.com/news/singapore/covid19-coronavirus-self-disinfecting-coating-lift-buttons-12602756
and at this recent paper:
-Revisiting Current Photoactive Materials for Antimicrobial Photodynamic Therapy
Mariana Q. Mesquita, Cristina J. Dias, Maria G. P. M. S. Neves, Adelaide Almeida,and M. Amparo F. Faustino
Molecules. 23(10): 2424 (2018)
Available at: https://europepmc.org/article/pmc/pmc6222430
Best regards, Pierluigi Traverso
dear Kruti Shah;
In my opinion, thin films of ZnO and CuO emulsion solutions can help,
for more details can read;
Article Comparison of Antibacterial Effects of ZnO and CuO Nanoparti...
Dear Krnati,
Microbial infection is a severe concern, requiring the use of significant amounts of antimicrobials/biocides, not only in the hospital setting, but also in other environments. The increasing use of antimicrobial drugs and the rapid adaptability of microorganisms to these agents, have contributed to a sharp increase of antimicrobial resistance. Hydrodynamic inactivation (PDI) is being recognized as an effective method to inactivate a broad spectrum of microorganisms, including those resistant to conventional antimicrobials.
The Antimicrobial activity of Ag/SiO2 (coated glass) at room temperature (25°C), Antimicrobial activity of Cu/TiO2, The antimicrobial activity of Cu/TiO2 under UV light at room temperature (25°C), mixed together with hydrogels; liposomes; and photosensitizers could be useful as a disinfectant against polymer and steel surface too. They will deactivate the impact of viral. Plastic which has carbon and oxygen will be killed by hydrogels(Hydrodynamic inactivation ) or acrylic. Why because they will increase the surface and colonies may not be developed on the polymeric surface. Surface roughness of denture acrylic had a direct effect on microbial adhesion on the surface. They can reduce the number of bacteria and less colonizing the surfaces increased with increased surface roughness.
Simple CuO and ZnO will not work out. This is good for steel surface not for plastic.
Hope this is helpful for you.
Ashish
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