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Japan researchers say ozone effective in neutralizing coronavirus

Japanese researchers said on Wednesday (August 26, 2020) that low concentrations of ozone can neutralise coronavirus particles, potentially providing a way for hospitals to disinfect examination rooms and waiting areas.

Ozone, a type of oxygen molecule, is known to inactivate many pathogens, and previously experiments have shown that high concentrations, between 1-6 ppm, were effective against the coronavirus but potentially toxic to humans.

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History of Ozone

Ozone has been studied for centuries, and its history is rich and extense! Scroll down and learn more about the gas! Several chemists have been studying Ozone throughout the centuries!!!

1785 - The Dutch chemist, Van Marum noticed a strange odor near his electrostatic machine. Probably, the first person to detect the ozone, through the smell, was the Dutch chemist Martinus Van Marum (1750-1837). The description of his experiments mentioned the notion of a characteristic smell around his electrifier. In 1785 he “discovers” a light blue gas, with the help of an English instrument maker John Cuthbertson (1743-1821). The latter was hired to construct a giant double plate-glass frictional electrostatic generator. Marum certainly noted, “the odor of electrical matter,” determined that air or oxygen, subjected to an electrical discharge, tarnished mercury, but he did not identify the gas as an allotrope of oxygen.

1840 - The substance that gave off this odor is officially discovered and named ozone (from the Greek word “ozein” to smell), by a German scientist called Christian Friedrich Schönbein. However, the first time ozone was mentioned by name, it dates back to May 1840, in an essay of the German chemist Christian Friedrich Schönbein (1799-1868), consequently, this discovery was presented to the University of München. Similarly, Schönbein had noticed the same characteristic scent during his experiments, which Van Marum had measured and tried to identify before. He called this “ozone” gas, due to the Greek word for perfume – which is “Ozein”. Therefore, the discovery of ozone is usually attributed to Schönbein. Schönbein is still known as the first person to research the mechanisms of ozone and, organic matter reaction. Read “The History of Ozone – The Schönbein Period, 1839-1868”.

1857 - Werner Von Siemens designed an ozone generator, now known as the “Siemens Type” ozone generator. After 1840, many studies on the mechanism of disinfection of ozone were elaborated. But it was not until almost twenty years later that the new substance was revealed to be a triatomic allotrope of oxygen: in 1856 Thomas Andrews showed that ozone was formed only by oxygen, and in 1863 Soret established the relationship between oxygen and ozone by finding that three volumes of oxygen produce two volumes of ozone. The first ozone generator was manufactured in Berlin, by the German inventor Ernst Werner von Siemens (1816 – 1892), that also wrote a book on the application of ozone in water, which gave rise to a series of pilot projects, during which the ozone disinfection mechanism was researched. In 1857 Werner von Siemens built the first superior induction tube with which Kleinmann made the first attempt to destroy microorganisms and also performed the first gas insufflations in animals and humans.

1870 - C. Lender reports the first instance of ozone being used therapeutically, in Germany. In 1870, the German physician Lender published the first study about the practical biological effects related to ozone in the disinfection of water and its antimicrobial properties, which revolutionized medicine during this period, more than half a century before the appearance of penicillin. In 1873, Cornelius Benjamin Fox (1839-1922) discovered the ability of ozone for eliminating microorganisms. For him, there is perhaps no subject more attractive than that of Ozone. (Cornelius Benjamin Fox, “Ozone and Antozone” -1873).

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