Assessment of impact of α‐Fe 2 O 3 and γ‐Fe 2 O 3 nanoparticles on phytoplankton species Selenastrum capricornutum and Nannochloropsis oculata
| Autor: | Mehmet Ates, Önder Aksu, Durali Danabas, Burcu Ertit Taştan, Ilkay Unal, Zikri Arslan, Banu Kutlu, Isil Canan Cicek Cimen |
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| Rok vydání: | 2019 |
| Předmět: |
biology
Health Toxicology and Mutagenesis Iron oxide Nanoparticle General Medicine Selenastrum Management Monitoring Policy and Law Toxicology biology.organism_classification Acute toxicity chemistry.chemical_compound chemistry Dynamic light scattering Toxicity Zeta potential Growth inhibition Nuclear chemistry |
| Zdroj: | Environmental Toxicology. 35:385-394 |
| ISSN: | 1522-7278 1520-4081 |
| DOI: | 10.1002/tox.22875 |
| Popis: | In this study, the impact of alpha-iron oxide (α-Fe2 O3 , 20-40 nm) and gamma iron oxide (γ-Fe2 O3 , 20-40 nm) nanoparticles (NPs) on phytoplankton species Selenastrum capricornutum and Nannochloropsis oculata was investigated Characterizations of the NPs were systematically carried out by TEM, dynamic light scattering, zeta potential, X-ray diffraction, SEM, and Fourier transformation infrared spectroscopy. Acute toxicity was tested between 0.2 and 50 mg/L for each NP for a period of 72 hours exposure. γ-Fe2 O3 NP inhibited development of N oculata at the rate of 54% in 0.2 mg/L group with a high mortality rate of up to 82%. α-Fe2 O3 NPs were less toxic that induced 97% mortality on N oculata at 10 mg/L suspensions. In contrast, α-Fe2 O3 NP inhibited growth of S capricornutum strongly (73%) in 0.2 mg/L group. γ-Fe2 O3 NPs showed similar growth inhibition (72%) on S capricornutum in 10 mg/L suspensions. Despite the differential effects, the results indicated acute toxicity of α-Fe2 O3 and γ-Fe2 O3 NPs on N oculata and S capricornutum. |
| Databáze: | OpenAIRE |
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