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Materials 2019, 12(1), 186; https://doi.org/10.3390/ma12010186

Comparative Study of Physicochemical and Antibacterial Properties of ZnO Nanoparticles Prepared by Laser Ablation of Zn Target in Water and Air

1
Siberian Physical Technical Institute, Tomsk State University, Lenina, 36, Tomsk 634050, Russia
2
Laboratory of Biopolymers and Biotechnology, Tomsk State University, Lenina, 36, Tomsk 634050, Russia
3
Institute of Innovative Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1259, Japan
4
Department of Mechanical Engineering, Tokai University, Hiratsuka, Kanagawa 259-1259, Japan
5
Department of Chemistry, University of Mining and Geology, 1700 Sofia, Bulgaria
6
Research Institute of Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1259, Japan
*
Authors to whom correspondence should be addressed.
Received: 7 December 2018 / Revised: 30 December 2018 / Accepted: 3 January 2019 / Published: 8 January 2019
(This article belongs to the Special Issue Laser Ablation in the Synthesis of Novel Nanostructured Materials)
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Abstract

Here, we report on ZnO nanoparticles (NPs) generated by nanosecond pulsed laser (Nd:YAG, 1064 nm) through ablation of metallic Zn target in water and air and their comparative analysis as potential nanomaterials for biomedical applications. The prepared nanomaterials were carefully characterized in terms of their structure, composition, morphology and defects. It was found that in addition to the main wurtzite ZnO phase, which is conventionally prepared and reported by others, the sample laser generated in air also contained some amount of monoclinic zinc hydroxynitrate. Both nanomaterials were then used to modify model wound dressings based on biodegradable poly l-lactic acid. The as-prepared model dressings were tested as biomedical materials with bactericidal properties towards S. aureus and E. coli strains. The advantages of the NPs prepared in air over their counterparts generated in water found in this work are discussed. View Full-Text
Keywords: pulsed laser ablation in water; pulsed laser ablation in air; ZnO nanoparticles; biomedical materials; PLLA-scaffold; antibacterial properties pulsed laser ablation in water; pulsed laser ablation in air; ZnO nanoparticles; biomedical materials; PLLA-scaffold; antibacterial properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gavrilenko, E.A.; Goncharova, D.A.; Lapin, I.N.; Nemoykina, A.L.; Svetlichnyi, V.A.; Aljulaih, A.A.; Mintcheva, N.; Kulinich, S.A. Comparative Study of Physicochemical and Antibacterial Properties of ZnO Nanoparticles Prepared by Laser Ablation of Zn Target in Water and Air. Materials 2019, 12, 186.

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