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Environmental behaviour and ecotoxicity of quantum dots at various trophic levels: A review

2017-01Journal article Restricted access
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dc.contributor.authorRocha, Thiago Lopes
dc.contributor.authorMestre, Nélia
dc.contributor.authorTeixeira Saboia-Morais, Simone Maria
dc.contributor.authorBebianno, Maria João
dc.date.accessioned2019-11-20T15:08:06Z
dc.date.available2019-11-20T15:08:06Z
dc.date.issued2017-01
dc.description.abstractDespite the wide application of quantum dots (QDs) in electronics, pharmacy and nanomedicine, limited data is available on their environmental health risk. To advance our current understanding of the environmental impact of these engineered nanomaterials, the aimof this review is to give a detailed insight on the existing information concerning the behaviour, transformation and fate of QDs in the aquatic environment, as well as on its mode of action (MoA), ecotoxicity, trophic transfer and biomagnification at various trophic levels (micro-organisms, aquatic invertebrates and vertebrates). Data show that several types of Cd-based QDs, even at low concentrations (bmg Cd L-1), induce different toxic effects compared to their dissolved counterpart, indicating nano-specific ecotoxicity. QD ecotoxicity at different trophic levels is highly dependent on its physico-chemical properties, environmental conditions, concentration and exposure time, as well as, species, while UV irradiation increases its toxicity. The state of the art regarding the MoA of QDs according to taxonomic groups is summarised and illustrated. Accumulation and trophic transfer of QDs was observed in freshwater and seawater species, while limited biomagnification and detoxification processes were detected. Finally, current knowledge gaps are discussed and recommendations for future research identified. Overall, the knowledge available indicates that in order to develop sustainable nanotechnologies there is an urgent need to develop Cd-free QDs and new "core-shell-conjugate" QD structures. (C) 2016 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScience Without Borders Program from the Brazilian National Council for Scientific and Technological Development (CNPq) [239524/2012-8]
dc.description.sponsorshipPostdoctoral National Program (PNPD) from the Coordination for the Improvement of Higher Education Personnel (CAPES)
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT) project (NANOECOTOX) [PTDC/AAC-AMB/121650/2010]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.envint.2016.09.021
dc.identifier.issn0160-4120
dc.identifier.issn1873-6750
dc.identifier.urihttp://hdl.handle.net/10400.1/13366
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPergamon-Elsevier Science Ltd
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMussel Mytilus-Galloprovincialis
dc.subjectYeast saccharomyces-cerevisiae
dc.subjectCaenorhabditis-elegans
dc.subjectEscherichia-coli
dc.subjectCdte qds
dc.subjectSemiconductor Crystallites
dc.subjectChlamydomonas-reinhardtii
dc.subjectEngineered nanomaterials
dc.subjectToxicity assessment
dc.subjectCeriodaphnia-dubia
dc.titleEnvironmental behaviour and ecotoxicity of quantum dots at various trophic levels: A review
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PTDC%2FAAC-AMB%2F121650%2F2010/PT
oaire.citation.endPage17
oaire.citation.startPage1
oaire.citation.titleEnvironment International
oaire.citation.volume98
oaire.fundingStreamCOMPETE
person.familyNameLopes Rocha
person.familyNameMestre
person.familyNameBebianno
person.givenNameThiago
person.givenNameNélia
person.givenNameMaria
person.identifier195864
person.identifier.ciencia-idD71D-759D-F6FC
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0003-0551-6842
person.identifier.orcid0000-0001-6871-9984
person.identifier.orcid0000-0003-1492-8566
person.identifier.ridA-3864-2015
person.identifier.ridC-1943-2009
person.identifier.scopus-author-id37007842200
person.identifier.scopus-author-id35237689600
person.identifier.scopus-author-id7004152715
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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