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| Le Bihanic, Florane; Clérandeau, Christelle; Cormier, Bettie; Crebassa, Jean-claude; Keiter, Steffen H.; Beiras, Ricardo; Morin, Bénédicte; Bégout, Marie-laure; Cousin, Xavier; Cachot, Jerome. |
| The role of polyethylene microplastics 4–6 μm size (MPs) in the toxicity of environmental compounds to fish early life stages (ELS) was investigated. Marine medaka Oryzias melastigma embryos and larvae were exposed to suspended MPs spiked with three model contaminants: benzo(a)pyrene (MP-BaP), perfluorooctanesulfonic acid (MP-PFOS) and benzophenone-3 (MP-BP3) for 12 days. There was no evidence of MPs ingestion but MPs agglomerated on the surface of the chorion. Fish ELS exposed to virgin MPs did not show toxic effects. Exposure to MP-PFOS decreased embryonic survival and prevented hatching. Larvae exposed to MP-BaP or MP-BP3 exhibited reduced growth, increased developmental anomalies and abnormal behavior. Compared to equivalent waterborne concentrations,... |
| Tipo: Text |
Palavras-chave: Marine medaka; Microplastics; Developmental toxicity; Benzo(a)pyrene; Perfluorooctanesulfonic acid; Benzophenone-3. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00619/73112/74844.pdf |
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| Beiras, R; Bellas, J.; Cachot, J; Cormier, B.; Cousin, Xavier; Engwall, M.; Gambardella, C.; Garaventa, F.; Keiter, S.; Le Bihanic, F.; Lopez-ibanez, S.; Piazza, V.; Rial, D.; Tato, T.; Vidal-linan, L.. |
| Toxicity of polyethylene microplastics (PE-MP) of size ranges similar to their natural food to zooplanktonic organisms representative of the main taxa present in marine plankton, including rotifers, copepods, bivalves, echinoderms and fish, was evaluated. Early life stages (ELS) were prioritized as testing models in order to maximize sensitivity. Treatments included particles spiked with benzophenone-3 (BP-3), a hydrophobic organic chemical used in cosmetics with direct input in coastal areas. Despite documented ingestion of both virgin and BP-3 spiked microplastics no acute toxicity was found at loads orders of magnitude above environmentally relevant concentrations on any of the invertebrate models. In fish tests some effects, including premature or... |
| Tipo: Text |
Palavras-chave: Polyethylene; Marine litter; Marine zooplankton; Benzophenone-3; Embryo-larval bioassays. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00452/56369/57965.pdf |
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| Teixeira,Jessica; Freitas,Zaida Maria Farias de; Monteiro,Mariana Sato de Souza Bustamante; Vermelho,Alane Beatriz; Ricci Junior,Eduardo; Santos,Elisabete Pereira dos. |
| This work deals with development and evaluation of MFQ protective formulation, which contains two organic filters, namely: octyl-p-methoxycinnamate (OMC) and benzophenone-3 (BP-3); a photostabilizing agent called ethylhexylmethoxycrylene (EHMCR) and keratin particles. The MFQ formulation was evaluated in order to measure its pH, spin-spin lattice relaxation time (T2H), occlusivity factor, formulation efficacy, photostability and skin permeation, as well as keratin particle properties. Keratin particle size increased when incorporated to formulation, however, it did not affect pH. The MFQ formulation was found to be photostable and photoprotective, as evidenced by sunlight photostability test, sun protection factor (SPF), UVA/UVB ratio and critical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sunscreen; Keratin; Octylmethoxycinnamate; Benzophenone-3; Ethylhexylmethoxycrylene. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100597 |
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| Silva,Débora Granemann e; Sarruf,Fernanda Daud; Oliveira,Larissa Carolina Diniz de; Arêas,Elizabeth Pinheiro Gomes; Kaneko,Telma Mary; Consiglieri,Vladi Olga; Velasco,Maria Valéria Robles; Baby,André Rolim. |
| Nanotechnology applies to diverse sectors of science. In cosmetic area, investments have strengthened the idea that nanoproducts provide innumerable benefits to consumers. Extreme exposition to solar light can cause undesirable effects, thus, adding UV filters in cosmetic products are often used as prevention. Ethylhexyl methoxycinnamate and benzophenone-3 are UV filters widely used in sunscreen formulations, this UV filters absorb UVB and UVA radiation, respectively. In this study, sunscreen formulations were developed as nano and macroemulsion, but composed by the same raw material. Nanoemulsion was obtained by phase inversion temperature method (PIT). Physical and functional properties were evaluated by visual analysis, particle size distribution and by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nanoemulsion; PIT method; Benzophenone-3; Ethylhexyl methoxycinnamate. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000200007 |
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