New Delhi,March 28 2020:  IIT graduate  Kharagpur Debayan Saha  & AIIMS alumnus Shashi Ranjan   have developed  a device "Airlens Minus Corona" that  can  travel on streets to sterilize  large areas of a city. It  can be used in hospitals, bus stops, railway stations, shopping malls and other public places to sterilize the surfaces which may cause the spread of the coronavirus.
How Does it Work? The power lies in electrifying water droplets to kill coronavirus. The duo invents a new way to kill coronavirus using charged/ionized water droplets. Water droplets can be ionized using Corona Discharge. Such ionized water droplets can help in the oxidation of viral proteins into non-harmful molecules. Oxidation is one of the most potent antimicrobial tools. This technique can potentially sterilize the entire city. 
There are several ways by which viruses can be inactivated - Alcohols (such as ethanol or IPA) is one of them and alcohol-based hand sanitizer are useful for individuals or for sanitizing surfaces at a smaller scale but insufficient in such an emergency to use them for sanitizing cities. 
The duo  came up with a solution naming this technology Airlens Minus Corona as it clears up the Coronavirus using the electrical energy of Corona - Fighting Corona With Corona.
Says Dr. Sashi Ranjan, Co-Founder of PerSapien Innovations: “Diving deeper into the scientific research I did at NUS, Singapore, I realized that oxidation is one of the most potent antimicrobial tools which can sterilize the entire city. Our technology uses an optimal combination of electric energy and water atomization techniques to induce a charge on water droplets while creating the most potent oxidative entities, Hydroxyl radicals that can oxidize and kill the coronavirus.”
Adds  co-founder  Debayan Saha:  “Alcohols (like ethanol or IPA) are known to inactivate viruses by denaturing their protein coat. But the alcohol-based hand sanitizer is useful for individuals or for sanitizing surfaces at a smaller scale (home, offices, etc.) in the fight against Coronavirus. However, this is insufficient in such an emergency as it is impractical to use alcohol for sanitizing cities.”
Earlier, the two inventors  has also invented devices like PM Minus 2.5 to help curb vehicular pollution and Airlens which is a car air sanitizer.