Functionality of nanomaterials and its technological aspects - Used in preventing, diagnosing and treating COVID-19.

COVID-19 (Coronavirus) has severely affected the life of human beings since December 2019. Many difficulties are faced by human beings to prevent the spread of the corona virus. However, this unexpected evolution of COVID-19 has also thrown many challenges to scientists and researchers so as to develop technologies that can be used to combat COVID-19. In the effort to combat COVID-19, many research universities and academic laboratories are also contributing by developing many technologies like Facing masks, hand sanitizers, hand washing machines, etc., to control and prevent the spread of COVID-19 disease. The use of Nano-materials is proving to be very effective in prevention, detection and diagnosis of COVID-19. In this paper many such technologies that are used to combat COVID-19 are also discussed. Some of the technologies like the germ trap technology used in face masks and hoods are also discussed. The use of nano-coatings, nano materials like graphene and carbon nano materials is playing a key role in preventing the spread of the virus. Antimicrobial nano-materials like silver nanoparticles are also effectively contributing to preventing the spread of the virus. Nano bio-sensors and gold nanoparticles are used in RT-PCR (Reverse transcription polymerase chain reaction) testing devices which are used for detection of coronavirus. The use of many nano chemicals and compounds has helped in making vaccines and anti-viral drugs that are today showing a way to safeguard human beings against the attack of this deadly virus.