Osaka, Japan – Panasonic Corporation today announced it has verified the inhibitory effect of hydroxyl radicals contained in water on novel coronavirus variants, namely Alpha, Beta, Gamma, and Delta, in collaboration with the Japan Textile Products Quality and Technology Center.
Many viruses constantly change through mutation with some generating variants that may significantly affect viral infectivity and toxicity, which could lead to a global pandemics. Currently on a worldwide rampage, novel coronavirus also generated variants, four of which, as described above, have been designated as Variants of Concern by the World Health Organization (WHO), namely, Alpha, Beta, Gamma, and Delta.
In July 2020, Panasonic verified the inhibitory effect of hydroxyl radicals contained in water on novel coronavirus (SARS-CoV-2)*1. Prior to this announcement, in 2012, Panasonic conducted a virus clearance test with a third-party organization and confirmed the effectiveness on each of the 4 categories in terms of biological characteristics. Based on this result, Panasonic announced that "hydroxyl radicals contained in water" technology could be expected to have a inhibitory effect on new viruses*2. In light of these facts, hydroxyl radicals contained in water can be expected to have an effect on novel coronavirus variants. The company conducted a verification again in view of the current status of the spread of viral infection.
During the latest verification test, the virus titers of novel coronavirus (SARS-CoV-2) and its four variants (Alpha, Beta, Gamma, and Delta) were compared in a 45-liter test space with and without exposure to hydroxyl radicals contained in water. As a result, the test confirmed an inhibitory effect of more than 99% on all five types of viruses after two hours of exposure. Note that the verification results are based on the test in a closed test environment and not in a space actually in use.
Panasonic will continue to pursue the potential of the “hydroxyl radicals contained in water“ technology and verify its various effects in order to contribute to society.
- *1 Verified jointly with Osaka Prefecture University
- *2 Verified jointly with the German test laboratory, Charles River Biopharmaceutical Services GmbH