The Acute Toxicity of Tin Dioxide Nanoparticles on Chlorella vulgaris Algae
محورهای موضوعی : Biotechnological Journal of Environmental Microorganismsفاطمه شریعتی 1 , مهروز زیکساری 2 , زهره رمضانپور 3
1 - گروه محیط زیست ، واحد لاهیجان ، دانشگاه آزاد اسلامی ، لاهیجان ، ایران
2 - گروه محیط زیست ، واحد لاهیجان ، دانشگاه آزاد اسلامی ، لاهیجان ، ایران
3 - انستیتو تحقیقاتی ماهیان خاویاری ، رشت ، ایران
کلید واژه: Algae, Chlorella vulgaris, Tin oxide nanoparticle, Toxicity,
چکیده مقاله :
Nowadays, nanotechnology and the use of its components, including nanoparticles, have successfully improved
the situation of industries in advancing production goals. Among these nanoparticles, SnO2, or tin
dioxide nanoparticle, which was used in this study, can be mentioned. Tin dioxide is used in the manufacture
of batteries and fuel cells, capacitors, and the negative effects of factory effluents entering rivers and other
water sources will affect catalysts, and the health of living organisms. In this study, the biotoxicity of tin oxide
nanoparticles on Chlorella vulgaris algae, which is one of the primary producers and most important levels
of the food chain, was investigated. This research was conducted using the OECD acute toxicity test method
(counting method for algae, method 201), and statistical probit analysis was performed in order to obtain toxicity
data using the probit method. The results of exposure for Chlorella vulgaris in 48 and 72 hours were EC50
and EC90 equal to 6.99, 57.54, and 13.08 and 1.07 x 1010 mg L-1, respectively. The highest growth decrease after
48 and 72 hours was observed in 5.5 mg L-1 SnO2NPs. During the test period, no morphological changes were
observed for any of the microorganisms, which are based on the toxicity of tin oxide nanoparticles.
Nowadays, nanotechnology and the use of its components, including nanoparticles, have successfully improved
the situation of industries in advancing production goals. Among these nanoparticles, SnO2, or tin
dioxide nanoparticle, which was used in this study, can be mentioned. Tin dioxide is used in the manufacture
of batteries and fuel cells, capacitors, and the negative effects of factory effluents entering rivers and other
water sources will affect catalysts, and the health of living organisms. In this study, the biotoxicity of tin oxide
nanoparticles on Chlorella vulgaris algae, which is one of the primary producers and most important levels
of the food chain, was investigated. This research was conducted using the OECD acute toxicity test method
(counting method for algae, method 201), and statistical probit analysis was performed in order to obtain toxicity
data using the probit method. The results of exposure for Chlorella vulgaris in 48 and 72 hours were EC50
and EC90 equal to 6.99, 57.54, and 13.08 and 1.07 x 1010 mg L-1, respectively. The highest growth decrease after
48 and 72 hours was observed in 5.5 mg L-1 SnO2NPs. During the test period, no morphological changes were
observed for any of the microorganisms, which are based on the toxicity of tin oxide nanoparticles.
