Researchers from seven countries, including Estonia, envision future reusable face masks to be based on smart nanotechnology. According to the plan, these 3D-printed masks will be more comfortable to wear, have excellent filtration efficiency, self-disinfection capacity and an integrated humidity dissipation system.
The coronavirus pandemic has shown that the rational use of face masks can drastically reduce infections and deaths. The currently used non-medical face masks have their disadvantages either in terms of efficiency, comfort or time of use. Moreover, we should not overlook the environmental impact of the production and use of disposable masks: an estimated 129 billion masks are produced every month, resulting in several tons of waste every day.
Taking all this into account, an international group of researchers, including Karin Kogermann, Associate Professor in Pharmacy of the University of Tartu Institute of Pharmacy, set out to develop new-generation reusable face masks. They have described their understanding of an innovative face mask in the article “Personalized Reusable Face Masks with Smart Nano-Assisted Destruction of Pathogens for COVID-19: a Visionary Road”, published in Chemistry—A European Journal.
According to Karin Kogermann, nanotechnology is a powerful tool that allows producing materials with unique physicochemical and anti-pathogen properties. “Multifunctional materials with unique properties can be fabricated by combining electrospun nanofibers, plasmonic nanoparticles, inorganic nanoclusters, and 3D printed structures,” said Kogermann.
The printed reusable face masks would have excellent filtration efficiency, the ability to dissipate humidity and on-demand light-triggered disinfection. “The electrospun layers help to dissipate the humidity typically generated into the mask, improving the comfort of mask users. The greatest value of these masks, however, would definitely be their self-disinfection properties,” Kogermann added.
Researchers believe that personalised nano-assisted face masks will bring enormous advantages to the entire global community, especially for front-line personnel.
Karin Kogermann’s research project PRG726 is funded by the Estonian Research Council.
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Communication Specialist of the University of Tartu Faculty of Medicine