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Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments
The antibacterial properties of nanosilver have led to a versatile application spectrum including medical purposes and personal care products. However, the increasing use of nanosilver has raised concerns about its environmental impacts. Long-term exposure studies with aquatic invertebrates are esse...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3792065/ https://www.ncbi.nlm.nih.gov/pubmed/24116021 http://dx.doi.org/10.1371/journal.pone.0075026 |
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author | Völker, Carolin Boedicker, Cathinka Daubenthaler, Jan Oetken, Matthias Oehlmann, Jörg |
author_facet | Völker, Carolin Boedicker, Cathinka Daubenthaler, Jan Oetken, Matthias Oehlmann, Jörg |
author_sort | Völker, Carolin |
collection | PubMed |
description | The antibacterial properties of nanosilver have led to a versatile application spectrum including medical purposes and personal care products. However, the increasing use of nanosilver has raised concerns about its environmental impacts. Long-term exposure studies with aquatic invertebrates are essential to assess possible adverse effects on aquatic ecosystems. In the present study, acute (48 h), chronic (21 d) and long-term effects of nanosilver (primary size 15 nm) on five successive generations of three Daphnia species (D. magna, D. pulex, and D. galeata) were investigated. Acute EC(50) values of nanosilver were 121 µg Ag L(−1) for D. magna being the least sensitive species and 8.95 and 13.9 µg Ag L(−1) for D. pulex and D. galeata, respectively. Chronic exposure provided EC(10) values of 0.92 µg Ag L(−1) for D. magna showing the most sensitive chronic reaction and 2.25 and 3.45 µg Ag L(−1) for D. pulex and D. galeata, respectively. Comparative exposure to AgNO(3) revealed a generally higher toxicity of the soluble form of silver. The multi-generation experiments resulted in effects on the population level for all tested species. Exposure of D. magna indicated an increased toxicity of nanosilver in the fifth generation of animals exposed to 10 µg Ag L(−1). Neonates from pre-exposed parental daphnids did not completely recover when transferred into clean water. Exposure of D. pulex and D. galeata revealed not only increasing toxicity in some generations, but also greater tolerance to nanosilver. This study contributes to the assessment of the risk potential of nanosilver on aquatic ecosystems. It shows that effects of nanosilver vary within one genus and change with exposure duration. Therefore, long-term studies considering different aquatic species are needed to better understand the possible effects of nanosilver on aquatic ecosystems. |
format | Online Article Text |
id | pubmed-3792065 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-37920652013-10-10 Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments Völker, Carolin Boedicker, Cathinka Daubenthaler, Jan Oetken, Matthias Oehlmann, Jörg PLoS One Research Article The antibacterial properties of nanosilver have led to a versatile application spectrum including medical purposes and personal care products. However, the increasing use of nanosilver has raised concerns about its environmental impacts. Long-term exposure studies with aquatic invertebrates are essential to assess possible adverse effects on aquatic ecosystems. In the present study, acute (48 h), chronic (21 d) and long-term effects of nanosilver (primary size 15 nm) on five successive generations of three Daphnia species (D. magna, D. pulex, and D. galeata) were investigated. Acute EC(50) values of nanosilver were 121 µg Ag L(−1) for D. magna being the least sensitive species and 8.95 and 13.9 µg Ag L(−1) for D. pulex and D. galeata, respectively. Chronic exposure provided EC(10) values of 0.92 µg Ag L(−1) for D. magna showing the most sensitive chronic reaction and 2.25 and 3.45 µg Ag L(−1) for D. pulex and D. galeata, respectively. Comparative exposure to AgNO(3) revealed a generally higher toxicity of the soluble form of silver. The multi-generation experiments resulted in effects on the population level for all tested species. Exposure of D. magna indicated an increased toxicity of nanosilver in the fifth generation of animals exposed to 10 µg Ag L(−1). Neonates from pre-exposed parental daphnids did not completely recover when transferred into clean water. Exposure of D. pulex and D. galeata revealed not only increasing toxicity in some generations, but also greater tolerance to nanosilver. This study contributes to the assessment of the risk potential of nanosilver on aquatic ecosystems. It shows that effects of nanosilver vary within one genus and change with exposure duration. Therefore, long-term studies considering different aquatic species are needed to better understand the possible effects of nanosilver on aquatic ecosystems. Public Library of Science 2013-10-07 /pmc/articles/PMC3792065/ /pubmed/24116021 http://dx.doi.org/10.1371/journal.pone.0075026 Text en © 2013 Völker et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Völker, Carolin Boedicker, Cathinka Daubenthaler, Jan Oetken, Matthias Oehlmann, Jörg Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title | Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title_full | Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title_fullStr | Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title_full_unstemmed | Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title_short | Comparative Toxicity Assessment of Nanosilver on Three Daphnia Species in Acute, Chronic and Multi-Generation Experiments |
title_sort | comparative toxicity assessment of nanosilver on three daphnia species in acute, chronic and multi-generation experiments |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3792065/ https://www.ncbi.nlm.nih.gov/pubmed/24116021 http://dx.doi.org/10.1371/journal.pone.0075026 |
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