Responses of Algal Cells to Engineered Nanoparticles Measured as Algal Cell Population, Chlorophyll a, and Lipid Peroxidation: Effect of Particle Size and Type
Rattachement africain : tr, tw. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
This paper investigated toxicity of three engineered nanoparticles (ENP), namely, Al 2 O 3 , SiO 2 , and TiO 2 to the unicellular green algae, exemplified by Pseudokirchneriella subcapitata with an emphasis on particle size. The changes in pH, cell counts, chlorophyll a, and lipid peroxidation were used to measure the responses of the algal species to ENP. The most toxic particle size was TiO 2 at 42 nm with an EC20 of 5.2 mg/L and Al 2 O 3 at 14–18 nm with an EC20 of 5.1 mg/L. SiO 2 was the least toxic with an EC20 of 318 mg/L. Toxicity was positively related to the surface charge of both ENP and algae. The chlorophyll content of the algal cells was influenced by the presence of ENP, which resulted in limited light and availability of nutrients due to increase in turbidity and nutrient adsorption onto the ENP surface, separately. Lipid peroxidation was attributed to reactive oxygen species (ROS). Fast reaction between algal cells and ROS due to direct contact between TiO 2 and algal cells is an important factor for lipid peroxidation.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Responses of Algal Cells to Engineered Nanoparticles Measured as Algal Cell Population, Chlorophyll a, and Lipid Peroxidation: Effect of Particle Size and Type
- Date Crossref
- 01/01/2012
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Akdeniz University Department of Environmental Engineering pays non établi dans la noticeUniversité ou école supérieure
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National Taiwan University of Science and Technology Department of Chemical Engineering pays non établi dans la noticeUniversité ou école supérieure
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University of Delware Department of Civil and Environmental Engineering pays non établi dans la noticeUniversité ou école supérieure
Department of Environmental Engineering — Akdeniz University, Department of Chemical Engineering — National Taiwan University of Science and Technology et Department of Civil and Environmental Engineering — University of Delware.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.