Nippon Shokubai and a research group led by Professor Hiroshi Uyama at Division of Applied Chemistry, Graduate School of Engineering, Osaka University have jointly developed a coating material that is expected to add antibacterial and antiviral effects to the surfaces of various materials.
Coating Material with High-antiviral Effect
The newly developed coating material consists of a phthalocyanine metal complex and cellulose acetate, and exhibits the antibacterial and antiviral effects of the phthalocyanine metal complex and
adhesion function of cellulose acetate to various materials.
This coating material:
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Has the antibacterial and antiviral effects of phthalocyanine metal complex, and the adhesive function of cellulose acetate,
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Inactivated more than 99.9% of a human coronavirus,
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Is expected to be used for a wide range of applications that require hygiene measures, and
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Was developed by Nippon Shokubai Research Alliance Laboratories established by us at Graduate School of Engineering, Osaka University in April 2017.
In a comparative evaluation of existing photosensitizers with a focus on photosensitizers that generate singlet oxygen capable of
inactivating various bacteria, fungi, and viruses, they found that the phthalocyanine metal complex was optimal in terms of singlet oxygen release capacity and stability.
In addition, by optimizing the structure of phthalocyanine through full utilization of the design technology for infrared ray cut filter pigments, etc. that Nippon Shokubai accumulated in the past, they have developed a new phthalocyanine metal complex which is highly dispersible in cellulose acetate and which can produce singlet oxygen over a long period of time.
Cellulose acetate is a polymer that is obtained by modifying plant-derived cellulose with acetic acid, and can be used to form a cellulose acetate layer on the surfaces of various different materials such as glass and PTFE (polytetrafluoroethylene, which is a fluororesin) by coating the surface with its polymer solution and drying.
It was confirmed that more than 99.9% of the human coronavirus was inactivated when we evaluated the antiviral performance of PMMA (acrylic resin) plates coated with the developed product against a human coronavirus OC43 with the test method specified in ISO 21702.
Based on the above, the developed product is expected to be widely used as a coating material with antibacterial and antiviral effects for applications that require hygiene measures.
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Source: Nippon Shokubai