Open AccessAntibacterial activity of ZnO nanoparticles fabricated using laser ablation in solution technique
Author(s) -
Nurfina Yudasari,
Pradita Ajeng Wiguna,
Maria Margaretha Suliyanti,
Cuk Imawan
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1245/1/012035
Subject(s) - wurtzite crystal structure , nanoparticle , zinc , laser ablation , materials science , nanotechnology , population , antibacterial activity , nuclear chemistry , chemical engineering , bacteria , laser , chemistry , optics , metallurgy , biology , physics , engineering , genetics , demography , sociology
The zinc oxide (ZnO) nanoparticles have been produced by using laser ablation in solution technique, resulting nanoparticles with hexagonal wurtzite structure and the size range of 20 – 50 nm. The optical characterization has predicted the nanoparticles band gap at least 3.16 eV. The ZnO nanoparticles were employed as an antibacterial agent for the growth of Escherichia coli (E. coli), and it shows a great potential. Total plate count (TPC) analysis was conducted by applying the ZnO nanoparticles with different concentration of 5%, 10%, 15%, 20%, 25% and 30% (portion of bacteria medium). The 5% concentration could reduce more than half of the E. coli population after 24 hours incubation time. There was no living bacteria detected for 20%, 25% and 30% ZnO concentration.