Anthony Galante, University of Pittsburgh
Superhemophobic and Antivirofouling Coating for Mechanically Durable and Wash-Stable Medical Textiles
Written by Jessalyn Low
The development of fluid-repellent textiles in the medical field such as masks and gowns are highly favorable to reduce the spread of infectious diseases. In this presentation, Galante presents the development of a self-cleaning surface on nonwoven polypropylene (PP) with the ability to repel various liquids. This is achieved by coating polytetrafluoroethylene (PTFE) nanoparticles, which have low surface energy, onto the surface of the PP textiles. As such, the treated surfaces are superhydrophobic and superhemophobic with high static contact angle, thus allowing the surface to repel liquids. This was found to significantly reduce the attachment of proteins and viruses. In addition, the surface roughness of the treated textiles ensured that the surfaces remain durable after harsh abrasion, where static contact angle was found to remain stable even after abrasion of the surface.