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Assessment of the toxicity of chromium oxide III nanoparticles on the marine microcrustacean Mysidopsis juniae

2016; Frontiers Media; Volume: 3; Linguagem: Inglês

10.3389/conf.fmars.2016.05.00222

2296-7745

Oliveira Therezinha, Fugazza Jonas, Cleiton Vaz, Kleine Tamila, De Almeida Ana, M Burks William,

Nanoparticles: synthesis and applications

Event Abstract Back to Event Assessment of the toxicity of chromium oxide III nanoparticles on the marine microcrustacean Mysidopsis juniae Therezinha M. Oliveira1*, Jonas Fugazza1*, Cleiton Vaz2*, Tamila Kleine1*, Ana C. De Almeida3* and William G. Matias4* 1 Universidade da Região de Joinville- Univille, Programa de Pós-Graduação em Saúde e Meio Ambiente, Brazil 2 Universidade do Estado de Santa Catarina, Brazil 3 Universidade Federal do Parana - UFPR, Brazil 4 Universidade Federal de Santa Catarina, Engenharia Ambiental e Sanitária, Brazil Nanotechnology is currently regarded as an innovative scientific and economic growth area; it arouses interest in diverse sectors, and its application has already been spread through many areas, including pharmaceutics, electronic equipment, paint and manufacture industries, among others. However, the available toxicological data are insufficient to identify precisely the effects to health and environment resulting from nanocompound usage. Among the nanoparticles, those of chromium oxide III (NP Cr203) show a great diversity of applications, including its usage by the navigation sector. Therefore, this work aims to assess the toxicity of NP Cr203 in reconstituted marine water by using toxicological employing the Mysidopsis juniae microcrustacean. In order to do so, characterization of NP Cr2O3 was performed through different physical-chemical techniques, in different environments, toxicological evaluation through toxicity tests of the NP Cr203, of acute and chronic exposure with CL50(96h) definition (5 mg.L-1). The results of the NP Cr203 characterization by Transmission Electric Microscopy (TEM), Scanning Electric Microscopy with Field Emission (SEM-FE) and x-ray Diffractometry showed that the particle diameter is in nanometric scale (21.8mm), showing further that there is a suspended formation of great aggregates of NP, especially in saline environment, which was confirmed by the analysis of the hydrodynamic diameter. The CL50(96h) found for the tested organism exposed to NP Cr2O3 was of 58,86 mg.L-1. The chronic and transgenerational test showed that only the 2nd generation mortality pattern exposed to a concentration of 5 mg.L-1 of NP Cr2O3 was affected by the substance under study (p<0,05). Finally, it was possible to verify, in the chromium ion analyses, for the acute tests as well as for the chronic ones, the presence of Cr (VI), keeping in mind that the in 5 mg.L-1 of NP Cr2O3 he concentration of Cr (VI) as of 0,25 mg.L-1, a result above the standard threshold for the effluent emission defined by the resolution CONAMA 430/2011, exponentially increasing for the other assessed concentrations. Thus, this study shows that NP Cr2O3, when dispersed in a saline environment and found in a very small diameter, tend to present low stability, being able to contribute to the accumulation of NP, and being a possible cause for the lessening of toxicity, since it could hamper organism absorption; however, this very instability also contributes to the release of ions, and, in this study, the presence of Cr (VI) was verified, which may be, in this case, the greatest cause for the toxicity that was found. References ZARBIN, A. J. G. Química de (nano)materiais. Química Nova, São Paulo, v. 30, n. 6, p. 1469-1479, 2007. WIŚNIEWSKA, M. & SZEWCZUK-KARPISZ, K. Removal possibilities of colloidal chromium (III) oxide from water using polyacrylic acid. Environ Sci Pollut Res Int. 3657–3669. 2013. WIECHERS, J. W.; MUSEE, N. Engineered Inorganic Nanoparticles and Cosmetics: Facts, Issues, Knowledge Gaps and Challenges. Journal of Biomedical Nanotechnology. v. 6, n. 5, p. 408-431, 2010. VAZ, C. Desenvolvimento de metodologia para teste de toxicidade crônica com Mysidopsis juniae (silva, 1979) para aplicações em análises de ambientes marinhos. Tese de Doutorado do Programa de Pós Graduação em Engenharia Ambiental - Universidade Federal de Santa Catarina – UFSC, Florianópolis, 2012. SCHERINGER, M. Environmental Risks of Nanomaterials. Nat. Nanotechnol, n. 3, p. 322-323, 2008 ROSSETTO, A. L. de O. F.; MELEGARI, S. P.; OURIQUES, L. C.; MATIAS, W. G. Comparative evaluation of acute and chronic toxicities of CuO nanoparticles and bulk using Daphnia magna and Vibrio fischeri. Science of the Total Environment, v. 490, p. 807-814, 2014. Keywords: Toxicity, Nanoparticles, Mysidopsis juniae, Nanotechnology, marine Conference: XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016. Presentation Type: Poster Presentation Topic: 1. ECOLOGY, BIODIVERSITY AND VULNERABLE ECOSYSTEMS Citation: Oliveira TM, Fugazza J, Vaz C, Kleine T, De Almeida AC and Matias WG (2016). Assessment of the toxicity of chromium oxide III nanoparticles on the marine microcrustacean Mysidopsis juniae. Front. Mar. Sci. Conference Abstract: XIX Iberian Symposium on Marine Biology Studies. doi: 10.3389/conf.FMARS.2016.05.00222 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 02 Sep 2016; Published Online: 03 Sep 2016. * Correspondence: Dr. Therezinha M Oliveira, Universidade da Região de Joinville- Univille, Programa de Pós-Graduação em Saúde e Meio Ambiente, Joinville, Brazil, tnovais@univille.br MD. Jonas Fugazza, Universidade da Região de Joinville- Univille, Programa de Pós-Graduação em Saúde e Meio Ambiente, Joinville, Brazil, jonasfugazza@hotmail.com Dr. Cleiton Vaz, Universidade do Estado de Santa Catarina, Pinhalzinho, Brazil, cleitonvaz@yahoo.com MD. Tamila Kleine, Universidade da Região de Joinville- Univille, Programa de Pós-Graduação em Saúde e Meio Ambiente, Joinville, Brazil, tamila.kleine@gmail.com Miss. Ana C De Almeida, Universidade Federal do Parana - UFPR, Pontal do Paraná, Brazil, ana.oceanografia@gmail.com Dr. William G Matias, Universidade Federal de Santa Catarina, Engenharia Ambiental e Sanitária, Florianópolis, Brazil, william.g.matias@ufsc.br Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Therezinha M Oliveira Jonas Fugazza Cleiton Vaz Tamila Kleine Ana C De Almeida William G Matias Google Therezinha M Oliveira Jonas Fugazza Cleiton Vaz Tamila Kleine Ana C De Almeida William G Matias Google Scholar Therezinha M Oliveira Jonas Fugazza Cleiton Vaz Tamila Kleine Ana C De Almeida William G Matias PubMed Therezinha M Oliveira Jonas Fugazza Cleiton Vaz Tamila Kleine Ana C De Almeida William G Matias Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.