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dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMARTINEZ ALVAREZ, Ignacio
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLE MENACH, Karyn
IDREF: 256879966
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDEVIER, Marie-Helene
IDREF: 072746092
dc.contributor.authorBARBARIN, Iranzu
hal.structure.identifierKERBASQUE, Basque Foundation of Science, Plaza Euskadi, 5, Bilbao 48009, Spain
dc.contributor.authorTOMOVSKA, Radmila
dc.contributor.authorCAJARAVILLE, Miren
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBUDZINSKI, Hélène
ORCID: 0000-0003-1028-9154
IDREF: 070478090
dc.contributor.authorORBEA, Amaia
dc.date.accessioned2024-02-14T09:44:02Z
dc.date.available2024-02-14T09:44:02Z
dc.date.issued2021-06
dc.identifier.issn0048-9697en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188118
dc.description.abstractEnBecause of its surface characteristics, once in the aquatic environment, graphene could act as a carrier of pollutants, such as polycyclic aromatic hydrocarbons (PAHs), to aquatic organisms. In this study we aimed to (1) assess the capacity of graphene oxide (GO) to sorb PAHs and (2) to evaluate the toxicity of GO alone and in combination with PAHs on zebrafish embryos and adults. GO showed a high sorption capacity for benzo(a)pyrene (B(a)P) (98% of B(a)P sorbed from a nominal concentration of 100 μg/L) and for other PAHs of the water accommodated fraction (WAF) of a naphthenic North Sea crude oil, depending on their log Kow (95.7% of phenanthrene, 84.4% of fluorene and 51.5% of acenaphthene). In embryos exposed to different GO nanomaterials alone and with PAHs, no significant mortality was recorded for any treatment. Nevertheless, malformation rate increased significantly in embryos exposed to the highest concentrations (5 or 10 mg/L) of GO and reduced GO (rGO) alone and with sorbed B(a)P (GO-B(a)P). On the other hand, adults were exposed for 21 days to 2 mg/L of GO, GO-B(a)P and GO co-exposed with WAF (GO + WAF) and to 100 μg/L B(a)P. Fish exposed to GO presented GO in the intestine lumen and liver vacuolisation. Transcription level of genes related to cell cycle regulation and oxidative stress was not altered, but the slight up-regulation of cyp1a measured in fish exposed to B(a)P for 3 days resulted in a significantly increased EROD activity. Fish exposed to GO-B(a)P and to B(a)P for 3 days and to GO + WAF for 21 days showed significantly higher catalase activity in the gills than control fish. Significantly lower acetylcholinesterase activity, indicating neurotoxic effects, was also observed in all fish treated for 21 days. Results demonstrated the capacity of GO to carry PAHs and to exert sublethal effects in zebrafish.
dc.language.isoENen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/
dc.subject.enAdsorption
dc.subject.enAquatic nanotoxicity
dc.subject.enCarbon based nanomaterials
dc.subject.enOrganic pollutants.
dc.title.enUptake and effects of graphene oxide nanomaterials alone and in combination with polycyclic aromatic hydrocarbons in zebrafish
dc.title.alternativeSci. Total Environ.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.scitotenv.2021.145669en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalScience of the Total Environmenten_US
bordeaux.page145669en_US
bordeaux.volume775en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamLPTCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03170877
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccCC BY-NC-NDen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20of%20the%20Total%20Environment&rft.date=2021-06&rft.volume=775&rft.spage=145669&rft.epage=145669&rft.eissn=0048-9697&rft.issn=0048-9697&rft.au=MARTINEZ%20ALVAREZ,%20Ignacio&LE%20MENACH,%20Karyn&DEVIER,%20Marie-Helene&BARBARIN,%20Iranzu&TOMOVSKA,%20Radmila&rft.genre=article


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