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    Antibacterial activity of silver and titania nanoparticles on glass surfaces

    Year: 2019

    Journal: Adv. Nat. Sci.-Nanosci Nanotechnol, Volume 10, MAR

    Authors: Kummala, Ruut; Brobbey, Kofi J.; Haapanen, Janne; Makela, Jyrki M.; Gunell, Marianne; Eerola, Erkki; Huovinen, Pentti; Toivakka, Martti; Saarinen, Jarkko J.

    Organizations: Academy of FinlandAcademy of FinlandEuropean Commission [275 475]; UEF Faculty of Science and Forestry [579/2017]

    Keywords: nanoparticle; antibacterial; glass; E coli; S aureus

    A( )liquid flame spray (LFS) nanoparticle deposition process was used to generate glass surfaces with silver (Ag) and titania (TiO2) nanoparticles for antibacterial activity against two common pathogenic bacteria causing community-associated and hospital-acquired infections, gram positive Staphylococcus aureus (S aureus) and gram negative Escherichia coli (E coli). All nanoparticle coatings increased antibacterial activity compared to a reference glass surface. The Ag nanoparticle coatings showed the highest antibacterial activity with E coli. On the contrary, TiO2 nanoparticle coatings were found to have a higher antibacterial activity against S aureus than E coli. No significant differences in antibacterial activity were observed between the two used nanoparticle deposition amounts.
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