Development of Additive Granting 'Antiviral' Function to All Substances Touched by Hands
Korea Institute of Materials Science
[Asia Economy Reporter Kim Bong-su] A material that imparts antibacterial and antiviral functions to all objects within reach has been developed.
The Korea Institute of Materials Science (KIMS) announced on the 3rd that Dr. Kim Chang-su's research team at the Nanobio Convergence Laboratory successfully developed a material that provides antibacterial and antiviral functions without altering the physical properties of various products we commonly use.
Currently, antibacterial films and coatings available on the market are widely used on elevator buttons, door handles, touchscreens, and more, but they have low transparency and the films are easily damaged due to frequent use. Additionally, attaching extra films to existing products or the processes required to manufacture films are cumbersome.
The research team developed an antibacterial and antiviral additive that generates a high level of metal ions. By adding only a small amount, about 1 to 2 weight percent (wt%), to various resins, they achieved antibacterial properties of 99.99% and antiviral properties improved more than tenfold within 2 hours without causing optical, mechanical, or thermal property changes to the existing products. Since it is used as an additive, ultraviolet (UV) and thermal curing processes can be performed without additional steps on existing products. Mixed with resin, the antibacterial effect can be sustained semi-permanently. Furthermore, the developed antibacterial and antiviral additive is composed entirely of non-toxic substances with no organic antibacterial agents or nano compounds used.
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Dr. Kim Chang-su, the principal researcher, explained, “This technology can be widely applied to display films, functional textiles, home appliance/furniture films, window films, automotive interior and exterior materials, kitchen, bathroom, and hygiene products, medical supplies, and more,” adding, “We are currently conducting mass production tests with various technology-demand companies.”
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