Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i>
Nanoparticles are man-made materials defined as materials smaller than 100 nm in at least one dimension. Titanium oxide nanoparticles are of great interest because of their extensive use in self-care products. There is a lack of nanotoxicological studies of TiO<sub>2</sub> NPs in benthic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Ecologies |
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| Online Access: | https://www.mdpi.com/2673-4133/4/1/11 |
| _version_ | 1827750181823578112 |
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| author | Stefani Cruz-Rosa Omar Pérez-Reyes |
| author_facet | Stefani Cruz-Rosa Omar Pérez-Reyes |
| author_sort | Stefani Cruz-Rosa |
| collection | DOAJ |
| description | Nanoparticles are man-made materials defined as materials smaller than 100 nm in at least one dimension. Titanium oxide nanoparticles are of great interest because of their extensive use in self-care products. There is a lack of nanotoxicological studies of TiO<sub>2</sub> NPs in benthic organisms to have evidence about the effects of these pollutants in freshwater ecosystems. <i>Atya lanipes</i> is a scraper/filter that can provide a good nanotoxicological model. This study aims to determine how the TiO<sub>2</sub> NPs can develop a toxic effect in the larvae of the <i>Atya lanipes</i> shrimp and to document lethal and sublethal effects after acute exposures to TiO<sub>2</sub> NP suspensions of: 0.0, 1.0, 10.0, 50.0, 100.0, and 150.0 mg/L. The results show that early exposure to TiO<sub>2</sub> NPs in <i>Atya lanipes</i> creates an increase in mortality at 48 and 72 h exposures, hypoactivity in movements, and morphological changes, such as less pigmentation and the presence of edema in exposed larvae. In conclusion, TiO<sub>2</sub> NPs are toxic contaminants in the larval stage of the <i>Atya lanipes</i>. It is necessary to regulate these nanoparticles for purposes of the conservation of aquatic biodiversity, especially for freshwater shrimp larvae and likely many other larvae of filter-feeding species. |
| first_indexed | 2024-03-11T06:40:01Z |
| format | Article |
| id | doaj.art-92c9f9be094747a89b19ac7405ec34ff |
| institution | Directory Open Access Journal |
| issn | 2673-4133 |
| language | English |
| last_indexed | 2024-03-11T06:40:01Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Ecologies |
| spelling | doaj.art-92c9f9be094747a89b19ac7405ec34ff2023-11-17T10:40:39ZengMDPI AGEcologies2673-41332023-02-014114115110.3390/ecologies4010011Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i>Stefani Cruz-Rosa0Omar Pérez-Reyes1Department of Environmental Sciences, College of Natural Sciences, University of Puerto Rico, Rio Piedras Campus, San Juan 00925, Puerto RicoDepartment of Environmental Sciences, College of Natural Sciences, University of Puerto Rico, Rio Piedras Campus, San Juan 00925, Puerto RicoNanoparticles are man-made materials defined as materials smaller than 100 nm in at least one dimension. Titanium oxide nanoparticles are of great interest because of their extensive use in self-care products. There is a lack of nanotoxicological studies of TiO<sub>2</sub> NPs in benthic organisms to have evidence about the effects of these pollutants in freshwater ecosystems. <i>Atya lanipes</i> is a scraper/filter that can provide a good nanotoxicological model. This study aims to determine how the TiO<sub>2</sub> NPs can develop a toxic effect in the larvae of the <i>Atya lanipes</i> shrimp and to document lethal and sublethal effects after acute exposures to TiO<sub>2</sub> NP suspensions of: 0.0, 1.0, 10.0, 50.0, 100.0, and 150.0 mg/L. The results show that early exposure to TiO<sub>2</sub> NPs in <i>Atya lanipes</i> creates an increase in mortality at 48 and 72 h exposures, hypoactivity in movements, and morphological changes, such as less pigmentation and the presence of edema in exposed larvae. In conclusion, TiO<sub>2</sub> NPs are toxic contaminants in the larval stage of the <i>Atya lanipes</i>. It is necessary to regulate these nanoparticles for purposes of the conservation of aquatic biodiversity, especially for freshwater shrimp larvae and likely many other larvae of filter-feeding species.https://www.mdpi.com/2673-4133/4/1/11ecotoxicologyaquatic toxicitynanotoxicologynanoparticlesbioassaysmacroinvertebrate |
| spellingShingle | Stefani Cruz-Rosa Omar Pérez-Reyes Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> Ecologies ecotoxicology aquatic toxicity nanotoxicology nanoparticles bioassays macroinvertebrate |
| title | Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> |
| title_full | Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> |
| title_fullStr | Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> |
| title_full_unstemmed | Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> |
| title_short | Titanium Oxide Nanoparticles as Emerging Aquatic Pollutants: An Evaluation of the Nanotoxicity in the Freshwater Shrimp Larvae <i>Atya lanipes</i> |
| title_sort | titanium oxide nanoparticles as emerging aquatic pollutants an evaluation of the nanotoxicity in the freshwater shrimp larvae i atya lanipes i |
| topic | ecotoxicology aquatic toxicity nanotoxicology nanoparticles bioassays macroinvertebrate |
| url | https://www.mdpi.com/2673-4133/4/1/11 |
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