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Published in: Lasers in Medical Science 5/2019

01-07-2019 | Original Article

The antifungal agent of silver nanoparticles activated by diode laser as light source to reduce C. albicans biofilms: an in vitro study

Authors: Suryani D. Astuti, Putri S. Puspita, Alfian P. Putra, Andi H. Zaidan, Mochamad Z. Fahmi, Ardiyansyah Syahrom, Suhariningsih

Published in: Lasers in Medical Science | Issue 5/2019

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Abstract

Candida albicans is a normal flora caused fungal infections and has the ability to form biofilms. The aim of this study was to improve the antifungal effect of silver nanoparticles (AgNPs) and the light source for reducing the biofilm survival of C. albicans. AgNPs were prepared by silver nitrate (AgNO3) and trisodium citrate (Na3C6H5O7). To determine the antifungal effect of treatments on C. albicans biofilm, samples were distributed into four groups; L + P+ was treatment with laser irradiation and AgNPs; L + P− was treatment with laser irradiation only; L − P+ was treatment with AgNPs only (control positive); L − P− was no treatment with laser irradiation or AgNPs (control negative). The growth of fungi had been monitored by measuring the optical density at 405 nm with ELISA reader. The particle size of AgNPs was measured by using (particle size analyzer) and the zeta potential of AgNPs was measured by using Malvern zetasizer. The PSA test showed that the particle size of AgNPs was distributed between 7.531–5559.644 nm. The zeta potentials were found lower than − 30 mV with pH of 7, 9 or 11. The reduction percentage was analyzed by ANOVA test. The highest reduction difference was given at a lower level irradiation because irradiation with a density energy of 6.13 ± 0.002 J/cm2 resulted in the biofilm reduction of 7.07 ± 0.23% for the sample without AgNPs compared to the sample with AgNPs that increased the biofilm reduction of 64.48 ± 0.07%. The irradiation with a 450-nm light source had a significant fungicidal effect on C. albicans biofilm. The combination of light source and AgNPs provides an increase of biofilm reduction compared to the light source itself.
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Metadata
Title
The antifungal agent of silver nanoparticles activated by diode laser as light source to reduce C. albicans biofilms: an in vitro study
Authors
Suryani D. Astuti
Putri S. Puspita
Alfian P. Putra
Andi H. Zaidan
Mochamad Z. Fahmi
Ardiyansyah Syahrom
Suhariningsih
Publication date
01-07-2019
Publisher
Springer London
Published in
Lasers in Medical Science / Issue 5/2019
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-018-2677-4

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