Antibacterial activity of silver and titania nanoparticles on glass surfaces

Ruut Kummala, Kofi Brobbey, Janne Haapanen, Jyrki M Mäkelä, Marianne Gunell, Erkki Eerola, Pentti Huovinen, Martti Toivakka, Jarkko J Saarinen

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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.

Original languageUndefined/Unknown
Pages (from-to)
JournalAdvances in Natural Sciences: Nanoscience and Nanotechnology
Issue number1
Publication statusPublished - 2019
MoE publication typeA1 Journal article-refereed

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