Ecotoxic Effects of Cerium Oxide Nanoparticles on Bacteria
| Autor: | Ayca Erdem, Merve Özkaleli Akçetin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Cerium oxide
synthetic water solutions Nanoparticle Bacillus subtilis Bacterial growth medicine.disease_cause bacillus subtilis medicine inhibisyon ceo2 nanoparticle lcsh:Science lcsh:Science (General) Environmental scanning electron microscope Escherichia coli sentetik su çözeltisi biology Chemistry General Medicine biology.organism_classification inhibition Ionic strength lcsh:TA1-2040 lcsh:Q escherichia coli ceo2 nanopartikülü lcsh:Engineering (General). Civil engineering (General) Bacteria Nuclear chemistry lcsh:Q1-390 |
| Zdroj: | Cumhuriyet Science Journal, Vol 40, Iss 2, Pp 544-553 (2019) |
| ISSN: | 2587-2680 |
| Popis: | In this study, the ecotoxic effects of cerium oxide nanoparticles (CeO2 NPs) on both gram positive Bacillus subtilis and gram negative Escherichia coli bacteria were investigated. CeO2 NPs were prepared in synthetic water solutions having different water contents (low, median and high ionic strength and conductivity, pH 5.5 and 6.5). Bacteria were exposed to CeO2 NP solutions in absence and presence of light conditions for 1 h. Different NP concentrations (10, 100, 500 and 1000 mg/L) were used, and environmental scanning electron microscopy imaging was performed for morphological examination of the bacteria. Results showed an aggregation of NPs relating to both high NP concentrations and high ionic strength of the water solutions. Regardless of the test condition, CeO2 NPs highly inhibited the bacterial growth. |
| Databáze: | OpenAIRE |
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