Toxicity study of silver nanoparticles synthesized using seaweed Sargassum angustifolium in common carp, Cyprinus carpio


1 Department of Fisheries, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar- Iran

2 Department of Clinical Sciences, Faculty of Veterinary, Shahid Chamran University of Ahvaz, Ahvaz- Iran

3 Department of Basic Sciences, Faculty of Veterinary, Shahid Chamran University of Ahvaz, Ahvaz- Iran

4 Department of Pathobiology, Faculty of Veterinary, Shahid Chamran University of Ahvaz, Ahvaz- Iran


BACKGROUND: Application of green chemistry to the synthesis of nanomaterials is of vital importance in medicinal and technological aspects. Recently, synthesis of silver nanoparticles using plants and marine macro algae to adapt this approach to the environment, has become  more popular. Objectives: The purpose of this study is biological synthesis of silver nanoparticles using seaweed, Sargassum angustifolium, and determining its toxicity in common carp. Methods: First, synthesis of silver nanoparticles using Sargassum algae was conducted and then acute toxicity of these silver nanoparticles was investigated at static renewal condition during 96 hours in common carp according to standard methods (1998) OECD. Results: TEM analysis showed that the average size of the bionanoparticles was found to be 32.54 nm and spherical in shape. The toxicity results showed that the LC50 at 24, 48, 72 and 96-h after exposure was 79.54 ± 0.007, 52.17 ± 0.006, 30.62 ± 0.008 and 11.34 ± 0.016 mg/l respectively. Conclusions: Analysis related to the characterization of the properties of silver nanoparticles proves bioreduction of silver ions by sargassum seaweed extract. According to the results the mortality rates of common carp showed an increasing trend with increasing concentration and exposure time, which indicates the toxicity of this substance in high concentration for common carp.


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