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Sharp announced that its unique plasma cluster technology is effective in reducing the new corona virus floating in the air.
Developed a virus testing device equipped with plasma cluster technology in collaboration with Professor Jiro Yasuda, Professor Asuka Minamibo, and Professor Hironori Yoshiyama from Shimane University School of Medicine, Joint Research Center for Infectious Diseases of Nagasaki University. As a result of conducting an experiment with the cooperation of Nagasaki University using this, the infectious titer was 91.3 irradiating the new coronavirus (SARS-CoV-2) floating in the air with plasma cluster ions for about 30 seconds . It is said to have been shown to decrease by%.
Professor Jiro Yasuda (right) of the Joint Center for Infectious Diseases Research, Nagasaki University and Professor Asuka Minamibo of the Joint Center for Infectious Diseases Research, Nagasaki University
Is it effective for indoor spray infection?
In a specially developed test space of approximately 3 L, a virus solution prepared from virus-infected cells was sprayed and irradiated with plasma cluster ions. The plasma pool ion concentration is about 10 million / cubic cm near the plasma pool ion generator. The infectious virus titer (number of infectious disease viruses) was calculated by the plaque method from the virus solution collected by the recovery device after spraying.
Professor Jiro Yasuda from Nagasaki University Joint Center for Infectious Disease Research, who conducted the experiment, said: “The virus generated by the virus spray is an aerosol with an average particle size of 2 μm, which is the size that the droplets fly further Yes, the virus residence time in the device from spray to recovery is about 30 seconds.
The experiment used a security cabinet in the BSL-3 test facility at Nagasaki University. An experiment was conducted by installing a test device in the hood. The recovered virus was placed in a 10-fold serially diluted virus solution and then cultured on agar medium for 2 to 3 days. The virus spreads to adjacent cells, but the virus infects and the broken cells do not stain the stain. We compare the results. ”
Without plasma pool ions, the number of infectious virus (plaque number) was 17,600, while with plasma pool ions it was 1,540, and the number of infectious virus particles decreased by 91.3%.
“By generating prize pools for 30 seconds, we deactivated 91.3% of the new coronavirus,” he said.
The plasma cluster generator used in the actual product is approximately 1 to 2 million / cubic cm near the outlet, and in this test, a device that generates a higher concentration was used. doing.
In the experiment, the irradiation was performed for 30 seconds, but “This time, we gave top priority to safety, and since we do not irradiate for more than 30 seconds, we cannot show specific values, but we can irradiate longer or repeat” . We have confirmed the agreement that irradiation will increase the effect ”(Masahiro Okizu, Senior Executive Director, Managing Director of Smart Life Group and Managing Director of Smart Appliances & Solutions Business Headquarters).
Asuka Minamibo, a professor at the Nagasaki University Joint Research Center for Infectious Diseases, said: “New coronavirus infections are transmitted by contact, droplets and aerosols. Among them, those who are infected by aerosols are in the same space. closed Shows that there is a possibility of getting infected immediately.
It shows high infectivity in the initial stage of infection, and there is also a peculiar phenomenon of the new corona virus that the infection is spread by asymptomatic virus carriers. Countermeasures are limited to dealing with therapies such as avoiding density 3, maintaining a safe distance, washing hands frequently, and wearing ventilation and masks indoors. To promote coexistence with viruses, it is also necessary to seek other infection control methods. This announcement will lead to that. “
Furthermore, Professor Yasuda from Nagasaki University said: “By demonstrating that plasma cluster technology inactivates the new corona virus floating in the air, it can be used not only in ordinary homes but also in real spaces such as medical institutions. It is expected to exert a viral effect. It also affects the amount of plasma cluster ion concentration that can be generated in real space. If an effective concentration can be generated and maintained, it will also be effective in real space. I would like to clearly hope how this will be implemented in society in the future. ”
Plasma cluster technology developed by Sharp
Sharp’s plasma cluster technology simultaneously releases cations (H + (H2O) m) and anions (O2- (H2O) n) into the air, instantly on the surface of floating bacteria, molds, viruses, allergens, etc. A cation and an anion combine with each other to become an OH (hydroxyl) radical with extremely high oxidizing power. It is a unique air purification technology that breaks down surface proteins, such as bacteria, through a chemical reaction and suppresses their action. The extracted hydrogen (H) and OH radical combine to form water (H2O) and return to the air.
Since the successful technological development in 2000, it has become a 10th generation device. The ion concentration has increased by approximately 20 times, the volume has been reduced to approximately 1/6, and the energy consumption has been reduced to approximately 1/5. In addition to adopting this technology in air purifiers, air conditioners, washing machines, etc. Nissan is also used in cars such as Honda, Hokuriku Shinkansen, and Midosuji Subway Line, and has shipped a total of 90 million units worldwide. Cumulative shipments of 100 million units are expected in 2021.
In 2004, it demonstrated its effect on the “floating cat coronavirus”, and in 2005, it also demonstrated its effect on the “SARS coronavirus (SARS-CoV)”. Also, it has been shown to be effective for odor, pet odor, beautiful skin, beautiful hair, and skin hydration.
To formulate these effects, we adopt an academic marketing method that is proven in collaboration with third-party testing institutions around the world. Proven clinical effects such as suppression of the action of harmful substances such as drug-resistant bacteria and the allergen dania, and reduction of the level of tracheal inflammation in pediatric asthma patients. At the same time, it has confirmed the safety of plasma clusters.
Masahiro Okizu, Senior Executive Director, Managing Director of Smart Life Group and Managing Director of Smart Appliances & Solutions Business Headquarters, said: “We have completed the verification of the effects on the new corona virus that we have been promoting since April 2020. Sharp already At the time of the experiment, we have taken three steps: verification of the effect in a small space, verification of the effect in a space equivalent to actual use, and clinical trials.
Since the verification of the floating novel coronavirus is a test in the absence of an effective therapeutic drug or vaccine, safety is prioritized and the effect is verified in a confined space. We would like to check the effect of conditions closer to actual use, but at the moment, we think it will be difficult to check in actual space. However, I would like to run an experiment as soon as the testable situation is ready. “
In addition, “this time, we were able to show that plasma cluster technology has the effect of reducing the infectious titer against the new corona virus floating in the air, which is effective in reducing the risk of infection from the new corona virus.” We would like to study the application and utilization method of plasma cluster technology and make proposals.
We want to bring a healthy, hygienic and comfortable air environment to the world through plasma cluster technology. To that end, we would like to elucidate various mechanisms of action, listen to various air problems in the domestic and commercial fields in general, continue to evolve and verify the effects of plasma cluster technology and solve them. “
Regarding the inhibitory effect on the new corona virus, Panasonic exposed the charged fine particle water used in Nanoe, a proprietary technology developed by the company, with the gauze on which the virus solution installed in the chalet was dropped, and as a result. In addition to announcing that the suppression rate was 99.7% to 99.9%, Daikin confirmed that the new corona virus was inactivated 99.9% or more by irradiation for 3 hours with streaming technology. original company. It has been announced.
Sharp emphasizes that this demonstration of effect is characterized by targeting airborne bacteria and is different from these demonstration results targeting naturally decomposing adherent bacteria.
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