51. Anti-Acanthamoeba Effects of Silver and Gold Nanoparticles and Contact Lenses Disinfection Solutions.
- Author
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NIYYATI, Maryam, SASANI, Roghayeh, MOHEBALI, Mehdi, GHAZIKHANSARI, Mahmoud, KARGAR, Faranak, HAJIALILO, Elham, and REZAEIAN, Mostafa
- Subjects
ACANTHAMOEBA ,NANOPARTICLES ,CONTACT lenses ,DISINFECTION & disinfectants ,CHLORHEXIDINE - Abstract
Background: This study aimed to investigate the anti-Acanthamoeba effects of the most used marketed disinfecting solutions in Iran. Moreover, the efficacy of some nano-compounds was tested against pathogenic Acanthamoeba. Methods: The present study was conducted in the School of Public Health, Tehran University of Medical sciences, Tehran, Iran during 2015-2016. Cysts of Acanthamoeba T4 genotype (7 × 10
4 /ml) mixed at the equal volume with contact lens solutions including Opti-free, Ginza, ReNu, Maxima, Light, and Cyclean for the recommended time by the manufacturers. Nano-silver and nano-gold compounds were also treated with the amoebae. Chlorhexidine 0.02% and normal saline were used as positive and negative controls, respectively. Dead and alive amoebae were determined using vital stain and suspension was cultured in non-nutrient agar. The entire process was repeated at least three times. Results: In none of the solutions in the manufacturer's brochure recommended time, full cytotoxic effect was observed on the cysts of Acanthamoeba. Opti free express solution destroyed the cysts after 6 days. Nanosilver and nano-gold compounds showed no cytotoxic effect on the cysts of Acanthamoeba. Conclusion: None of the Nanoparticles compounds as well as contact lenses disinfecting solutions which studied was effective on Acanthamoeba cysts in the manufacturer's brochure recommended time. However, continuing study on Nano-silver and Nano-gold compounds to find effective ingredients against Acanthamoeba are highly recommended. [ABSTRACT FROM AUTHOR]- Published
- 2018