Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity

J. N. Janice Low, W. Y. Wong, W. Rashmi, Abdul Amir H. Kadhum, Abu Bakar Mohamad

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The potential of zinc nanoparticles in various fields such as drug delivery, cancer treatment and food packaging has drawn great interest to the researchers in order to search for alternative production method with simpler set up. Antibacterial activities of zinc oxide nanoparticles were shown promising owing to its antibacterial properties over a wide range of bacteria strains and non-toxicity. In recent years, liquid-phase laser ablation was introduced as a modified method from conventional laser ablation with the advantage of providing a rapid quenching effect on the ablated metal surface, concurrently enable the ease of collection of metal nanoparticles ablated from the metal surface in the liquid medium. In most of the literature studies, the type of laser used for liquid-phase laser ablation of metal is Nd:YAG laser. For the first attempt, ytterbium fibre laser was used in this study for the liquid-phase laser ablation on zinc target to produce zinc oxide nanoparticles and its antibacterial activities will be investigated. In this study, the ablation parameters of laser power, frequency and ablation period were optimised to achieve zinc oxide with nano size. The nanoparticles were investigated on their particle size distribution using Zeta Sizer, morphology using TEM analysis, concentration using AAS analysis and antibacterial properties using agar disc diffusion with the presence of E. coli. The results show ZnO nanoparticles ranged 100-150 nm were synthesised from ytterbium fibre laser ablation using the optimised range of laser power, frequency and ablation period determined from this present work. ZnO nanoparticles revealed to be porous nano-sheets structures based on TEM analysis and they are in extreme low concentration based on AAS analysis. Relatively small inhibition zones observed from antibacterial analysis due to the extreme low concentration of ZnO nanoparticles.

Original languageEnglish
Pages (from-to)29-43
Number of pages15
JournalJournal of Engineering Science and Technology
Volume12
Issue numberSpecial Issue 2
Publication statusPublished - 1 Jan 2017

Fingerprint

Laser ablation
Zinc oxide
Nanoparticles
Liquids
Ablation
Ytterbium
Lasers
Fiber lasers
Zinc
Metals
Transmission electron microscopy
Rapid quenching
Oncology
Metal nanoparticles
Drug delivery
Particle size analysis
Escherichia coli
Bacteria
Packaging

Keywords

  • Antibacterial activity
  • Liquid-phase laser ablation
  • Ytterbium fiber laser
  • Zinc oxide nano-partices

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Janice Low, J. N., Wong, W. Y., Rashmi, W., Kadhum, A. A. H., & Mohamad, A. B. (2017). Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity. Journal of Engineering Science and Technology, 12(Special Issue 2), 29-43.

Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity. / Janice Low, J. N.; Wong, W. Y.; Rashmi, W.; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar.

In: Journal of Engineering Science and Technology, Vol. 12, No. Special Issue 2, 01.01.2017, p. 29-43.

Research output: Contribution to journalArticle

Janice Low, JN, Wong, WY, Rashmi, W, Kadhum, AAH & Mohamad, AB 2017, 'Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity', Journal of Engineering Science and Technology, vol. 12, no. Special Issue 2, pp. 29-43.
Janice Low JN, Wong WY, Rashmi W, Kadhum AAH, Mohamad AB. Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity. Journal of Engineering Science and Technology. 2017 Jan 1;12(Special Issue 2):29-43.
Janice Low, J. N. ; Wong, W. Y. ; Rashmi, W. ; Kadhum, Abdul Amir H. ; Mohamad, Abu Bakar. / Synthesis of zinc oxide nanoparticles using liquid-phase laser ablation and its antibacterial activity. In: Journal of Engineering Science and Technology. 2017 ; Vol. 12, No. Special Issue 2. pp. 29-43.
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