We are all intimate with facial coatings to slow down the spread of coronavirus. Some can be recycled and others become waste after one use. [Dr. Ye Ruquan] and a team of researchers from City University in Hong Kong, CityU, are developing an inexpensive recyclable mask with excellent antibacterial properties, and get it, the graphene it contains will generate a small current when moistened with human breath. There is not enough power to charge your phone or anything, but the voltage drops when the masks get dirty, so it can help decide when to clean it. The video after the break shows the voltage test and it reminds us of these batteries.
All the remarkable qualities of this mask come from laser-induced graphene. The laboratory produces LIG by lasing polyimide films with a commercial CO2-infrared model. In a speed test, the process can convert 1
An overly moist mask is nothing to sneeze at, so keep yourself in check and stay great.
Thanks for the tip, [Qes].