The research team has developed a reusable “nanotech mask” that can block 99.9 per cent of bacteria, viruses and particulate matter (PM), as well as kill germs just in 45 seconds. Its antimicrobial coating potency can last for at least 6 days, while its filtration efficiency surpasses those of standard N95 masks (95 per cent filtration of PM0.3). It can also be washed and reused over 10 times, making it more sustainable than conventional disposable masks, but just as easy to breathe in.
In mid-May, Singapore tightened its Covid-19 measures as the country was facing an increase in the number of infections, and the population was advised to use more effective face masks to help curb the spread of the coronavirus.
The made-in-NTU nanotech mask is made with two key components: an antimicrobial coating made from copper nanoparticles developed and patented by Professor Lam Yeng Ming, coated on a non-woven fabric mask invented by Associate Professor Liu Zheng, which has a unique static-electricity property that draws and traps all nanoparticles and germs.
The team is now looking to work with local industry partners who are keen to license and scale up the production of their 2-in-1 mask and are currently preparing scientific papers for submission in scientific journals.
Our heartiest congratulations to Prof Lam, Prof Liu and team on the excellent achievement!