Journal
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
Volume 243, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbpa.2020.110674
Keywords
Toxicity; Nanostructured materials; Mytilus galloprovincialis; Metals; Bioaccumulation; Remediated seawater
Categories
Funding
- Portuguese Science Foundation (FCT) [SFRH/BD/118582/2016, SFRH/BD/110478/2015]
- national funds (OE), through FCT -Fundacao para a Ciencia e a Tecnologia, I.P.
- REQUIMTE [UIDB/50006/2020]
- FCT/MEC
- TEMA [UID/EMS/00481/2013-FCT]
- FEDER, within the PT2020 Partnership Agreement
- project BISPECIAl: BIvalveS under Polluted Environment and ClImate chAnge - FEDER, through COMPETE2020 Programa Operacional Competitividade e Internacionalizacao (POCI) [POCI-01-0145-FEDER-028425]
- national funds (OE), through FCT/MCTES
- Regional Operational Program of the Center
- Programa Operacional Capital Humano (POCH) e da Uniao Europeia
- CESAM [UID/AMB/50017/2019]
- Foundation for Science and Technology [PTDC/NAN-MAT/30513/2017]
- FEDER component [CENTRO-01-0145-FEDER-030513]
- FSE
- Compete 2020
- Fundação para a Ciência e a Tecnologia [SFRH/BD/110478/2015, PTDC/NAN-MAT/30513/2017] Funding Source: FCT
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The modern technology brought new engineering materials (e.g. nanostructured materials) with advantageous characteristics such as a high capacity to decontaminate water from pollutants (for example metal(loid)s). Among those innovative materials the synthesis of nanostructured materials (NSMs) based on graphene as graphene oxide (GO) functionalized with polyethyleneimine (GO-PEI) had a great success due to their metal removal capacity from water. However, research dedicated to environmental risks related to the application of these materials is still non-existent. To evaluate the impacts of such potential stressors, benthic species can be a good model as they are affected by several environmental constraints. Particularly, the mussel Mytilus galloprovincialis has been identified by several authors as a bioindicator that responds quickly to environmental disturbances, with a wide spatial distribution and economic relevance. Thus, the present study aimed to evaluate the impacts caused in M. galloprovincialis by seawater previously contaminated by Hg and decontaminated using GO-PEI. For this, histopathological and biochemical alterations were examined. This study demonstrated that mussels exposed to the contaminant (Hg), the decontaminant (GO-PEI) and the combination of both (Hg + GO-PEI) presented an increment of histopathological, oxidative stress and metabolic alterations if compared to organisms under remediated seawater and control conditions The present findings highlight the possibility to remediate seawater with nanoparticles for environmental safety purposes.
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