Effect of ZnO nanoparticle sizes and illumination on growth inhibition of Escherichia coli and Staphylococcus aureus bacteria in cultivation medium

0541821 - FZÚ 2022 RIV GB eng C - Conference Paper (international conference)
Jíra, J. - Rutherford, D. - Mičová, J. - Remeš, Zdeněk - Rezek, B.
Effect of ZnO nanoparticle sizes and illumination on growth inhibition of Escherichia coli and Staphylococcus aureus bacteria in cultivation medium.
IOP Conference Series: Materials Science and Engineering. Vol. 1050. Bristol: IOP Publishing Ltd, 2021 - (Kozisek, Z.; Behulova, Z.; Potucek, Z.), č. článku 012007. ISSN 1757-8981.
[Joint Seminar on Development of Materials Science in Research and Education /30./ DMSRE 2020. Pavlov (CZ), 07.09.2020-11.09.2020]
R&D Projects: GA MŠMT LM2018110; GA MŠMT(CZ) EF16_019/0000760; GA ČR GC19-02858J
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : ZnO * Escherichia coli * Staphylococcus aureus
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)

We study antibacterial effects of the zinc oxide nanoparticles (ZnO NPs) in cultivation medium (Mueller-Hinton broth) on Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria models. We compare synthesized ZnO hedgehog NPs and commercial ZnO NPs (50 nm and 20 um nominal size) in different concentrations (1 mg/mL and 0.1 mg/mL). Results show that E. coli are more sensitive to the ZnO presence in the cultivation media than S. aureus. We also characterize influence of visible and UV light on the ZnO NP effects.
Permanent Link: http://hdl.handle.net/11104/0319344