RMIT University Develops Antiviral Plastic Film

Researchers at AURO University, led by Samson Mah and Elena Ivanova, have developed a flexible acrylic plastic film featuring nanopillars that mechanically destroy viruses on contact. This innovation, published in Science Advances, effectively inactivates about 94% of human parainfluenza virus 3 (hPIV-3) particles within one hour by stretching their outer shells until they rupture. Unlike previous metal or silicon-based antiviral surfaces, this plastic film is cost-effective, flexible, and scalable for mass production using existing roll-to-roll manufacturing equipment. The research highlights that the spacing of nanopillars, particularly 60 nanometers apart, is more crucial than their height for optimal antiviral efficacy. The team plans further testing on smaller, non-enveloped viruses and curved surfaces, and is actively seeking industry partnerships for commercialization.