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Gold nanoparticle trophic transfer from natural biofilm to grazer fish

hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorPERRIER, Fanny
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBAUDRIMONT, Magalie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMORNET, Stéphane
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMESMER-DUDONS, Nathalie
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorLACOMME, Sabrina
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorETCHEVERRIA, Bruno
hal.structure.identifierLaboratoire d'écotoxicologie des radionucléides [IRSN/PRP-ENV/SERIS/LECO]
dc.contributor.authorSIMON, Olivier
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFEURTET-MAZEL, Agnès
dc.date.issued2018-12
dc.identifier.issn2364-821X
dc.description.abstractEnNanoparticle (NP) trophic transfer is reported as an important exposure route for organisms in aquatic ecosystems. This study focused on gold nanoparticle (AuNP, PEG-coated, 10 nm diameter) transfer using an experimental benthic food chain which included two trophic levels: natural river biofilm and grazer fish Hypostomus plecostomus. AuNP biofilm accumulation was assessed via water AuNP concentrations and total biofilm mass. An extended range of six AuNP concentrations in water (0, 0.0048, 0.048, 0.48, 4.8, and 48 mg Au L−1) was set. A dose-dependent relation between gold concentrations in water and natural river biofilm was observed after a 48-h exposure. This pointed out the high propensity of natural biofilms to accumulate gold. Additionally, total biofilm mass appeared to influence AuNP accumulation at the highest exposure levels. This first step enables the set-up of the transfer experiment in which grazer fish were exposed for 21 days to natural biofilms, previously contaminated by low AuNP concentrations in water (NP0.1: 0.48 and NP1: 4.8 mg Au L−1). Gold was quantified in eight fish organs, and histology was observed. Gold was transferred from biofilms to fish; bioaccumulation was organ- and exposure level-dependent. Interestingly, the brain showed significant gold accumulation at the highest exposure level (NP1). Histological observations indicated distinct inflammatory responses in fish liver, spleen, and muscle. The overall results suggest the potential hazards of subchronic nanoparticle exposure in aquatic organisms.
dc.description.sponsorshipApproches à différentes échelles pour caractériser les interactions cellulaires, le transfert trophique et les impacts toxiques de nanoparticules métalliques chez les organismes aquatiques
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.description.sponsorshipDéveloppement d'une infrastructure française distribuée coordonnée - ANR-10-INBS-0004
dc.language.isoen
dc.publisherSpringer
dc.subject.enGold nanoparticle
dc.subject.enTrophic transfer
dc.subject.enToxicity
dc.subject.enNatural biofilm
dc.subject.enFish
dc.subject.enHypostomus plecostomu
dc.title.enGold nanoparticle trophic transfer from natural biofilm to grazer fish
dc.typeArticle de revue
dc.identifier.doi10.1007/s13404-018-0241-4
dc.subject.halChimie/Matériaux
bordeaux.journalGold Bulletin : The journal of gold science, technology and applications
bordeaux.page163-173
bordeaux.volume51
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-02337715
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02337715v1
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