DĚDKOVÁ Kateřina VSB - Technical University of Ostrava

Acute Aquatic Toxicity of Gold Nanoparticles to Freshwater Green Algae

Co-authors BUREŠ Zdeněk, PALARČÍK Jiří, VLČEK Miroslav, KUKUTSCHOVÁ Jana

Gold nanoparticles are extensively being prepared and studied due to their unique physicochemical properties. Gold nanoparticles are used in biomedical fields, optical engineering, catalysis and other fields of human interest. It is widely known that these materials have adverse effects to various organisms including green algae. Gold may be released from commercially available products and pose an environmental risk to water organisms e.g. Desmodesmus subspicatus. The paper describes the study of acute aquatic toxicity of gold nanoparticles prepared via reduction with ascorbic acid to freshwater green algae. These nanoparticles are capable of interacting with freshwater green algae and thus have potential adverse effects to freshwater phytoplankton. ACKNOWLEDGEMENTS: The study was supported by projects Reg.No.SP2014/52, LH12184, P204/11/0832 (Czech Science Foundation),0021627501 (the Czech Ministry of Education, Youth and Sports) and was elaborated in the framework of the Nanotechnology – the basis for international cooperation project, reg. no. CZ.1.07/2.3.00/20.0074 supported by Operational Programme 'Education for competitiveness' funded by Structural Funds of the European Union and state budget of the Czech Republic.