Created by scientists at Nanyang Technological University (NTU) in Singapore, the durable coating is made from a thin double-layered silicon dioxide and titanium dioxide film.
Anti-fogging sprays and wipes are popular products among spectacle or eyeglass wearers, especially since mask-wearing became a widespread practice during the Covid-19 pandemic. Anti-fogging coatings are also used in solar panels, windshields and displays or lenses that are used in humid environments.
However, current solutions in the market, such as anti-fogging sprays and wipes, are only temporary as they cannot withstand washing and must be reapplied regularly. In addition, they are prone to surface contamination by dirt or bacteria, which means replacement or maintenance is necessary.
Co-principal investigator of the study, Professor Chen Zhong of the NTU School of Materials Science and Engineering (MSE) said, “Most anti-fogging solutions today are temporary and have limited...