Destroys pathogenic micro-organisms by cold plasma without using corrosive chemical like sodium hypocloride or detrimental UV rays.
Safe to operator and environment friendly.
Proven capability of destroying bacteriophage, touted as more difficult to destroy than coronavirus.
Ideal for sanitization of sensitive medical/ any other equipments and personal belongings (tiffin boxes, purse, cell phones, key rings etc.) of frontline health workers.
|Input||240 V, 50Hz|
|Output||13.56 MHz, 300 watt|
|Cooling||Normal tap water (~ 5 LPM)|
|Attachment||Nebulizer to create mist|
|Quick||Sterilization achieved in 10 minutes.|
|Safe||Does not produce toxic by-products|
|Cost effective||10 min cycle cost ~ Rs 8.5.|
|Energy efficient||0.7 units used for 8 hr|
The proposed technology provides as a means of disinfection of pathogenic micro-organisms through cold plasma sterilization technique. Cold plasma produces different reactive oxygen species (ROS), superoxides required for disinfection without requiring any corrosive chemical like sodium hypocloride or additional UV rays.This process is safe to operator and environment friendly. Only Argon gas and Deionized H2O is needed for disinfection. The device is ideal for sanitization of sensitive medical/ any other equipments and personal belongings (tiffin boxes, purse, cell phones, files, documents, key rings etc.) of frontline health workers.
This cold plasma sterilization process has already been made into a device which has demonstrated its germicidal efficiency. Cold plasma is produced here by hollow cathode mechanism. In this process, two electrodes are kept at equal potential and the distance between them is less than the mean free path of electron-neutral collision. Under this condition, an electron will make an oscillatory motion between two electrodes gaining energy and when collides with a neutralwill transfer this energy. Under favorable experimental conditions, this mechanism generates plasma. In this present device, this condition is achieved by spiral groove inside a metallic sheet in such a manner that both sides of the groove remain at equal potential. This electrode is kept live with and plasma is generated in spiral gaps. Here cold plasma dissociates Deionizedwater inside the device to generate ROS and superoxides to disinfect any surface by destroying pathogens. Figure below shows a typical optical emission spectrum (OES) obtained from the device. The spectrum shows presence of OH, O I (both germicidal ROS) along with different molecular bands of N2 and NO in UV region. The device has showed the capability of dissociating atmospheric moisture and air resulting in signature of the above important germicidal species.OES study also detected emission of UV bands. However, for the ultraviolet/ near ultraviolet spectral region, exposure dose to the eye should not exceed 1.0 J/cm2. In this device, total dose ~ 0.03 mJ/cm2which is ~3330 times below the limit. Thus, No additional precaution was necessary for operation of the devices.