Novel Antibacterial Nanofiber Filter for Indoor Bioaerosol Removal

Strategic Insights -

Researchers from Istanbul Technical University have developed a novel antibacterial nanofiber filter that can effectively combat indoor bioaerosol threats. The filter is fabricated by integrating the glucose oxidase (GOx) enzyme into polyacrylonitrile/graphene nanoplatelet (PAN/GNP) electrospun nanofibers. This innovative filter has shown remarkable efficiency in removing aerosolized bacteria, with a 6.76-log reduction and nearly 100% efficiency.

Key Takeaways:

  • The developed filters exhibited a uniform nanofiber morphology, with average fiber diameters ranging from 240 to 377 nm.
  • The immobilization of GOx significantly enhances biocidal activity against aerosolized bacteria, achieving a remarkable 6.76-log reduction with an efficiency of nearly 100%.
  • The synergistic effect of GNP and immobilized GOx enhances antibacterial properties and improves bioaerosol removal capability of the filter.
  • This innovative filter has the potential to combat indoor bioaerosol threats and provide effective indoor air filtration solutions.
  • The research was financially supported by Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK), and it has been peer-reviewed.
  • The study highlights the importance of immobilizing enzymes on electrospun nanofibers for developing highly effective indoor air filters.

Statistics:

  • 6.76-log reduction in aerosolized bacteria removal efficiency
  • 100% efficiency in removing aerosolized bacteria
  • Average fiber diameters range from 240 to 377 nm
  • 240-377 nm: the average fiber diameter range of the developed filters
  • 100%: the efficiency of the filter in removing aerosolized bacteria

Sources:

  • Enzyme-integrated Polyacrylonitrile/graphene Nanoplatelet Antibacterial Nanofiber Air Filter for Indoor Bioaerosol Removal. Fibers and Polymers, 2025;26(7):2779-2791.
  • Istanbul Technical University, Dept. of Environmental Engineering, Tr-34469 Istanbul, Turkiye.
  • Korean Fiber Soc, Korea Science Technology Ctr #501 635-4 Yeogsam-Dong, Kangnam-Gu, Seoul 135-703, South Korea (Fibers and Polymers - www.springerlink.com/content/1229-9197/)
  • NewsRx LLC - NewsRx. New Findings from Istanbul Technical University in the Area of Nanofibers Reported (Enzyme-integrated Polyacrylonitrile/graphene Nanoplatelet Antibacterial Nanofiber Air Filter for Indoor Bioaerosol Removal). Nanotechnology Weekly. October 27, 2025; p 630.