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The response of the Mediterranean mussel Mytilus galloprovincialis (Lamarck, 1819) exposed to copper-doped zinc nanoparticles

Research Square (Research Square) 2023 Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Imen Bouzidi, Imen Bouzidi, Rakia Ayari-Kliti, Hamouda BEYREM, Karine Mougin, Badreddine Sellami

Summary

This study is not about microplastics; it examines how copper-doped zinc oxide nanoparticles affect the physiology and biochemistry of Mediterranean mussels (Mytilus galloprovincialis) used as marine pollution bioindicators.

Abstract The aim of this study is to evaluate the exposure effects to copper-doped zinc oxide nanoparticles (Cu-ZnO NPs) on bivalves through physiological and biochemical multi- markers. To achieve this objective, the selected biological material is the bioindicator mussel Mytilus galloprovincialis used as sentinel of marine pollution. The evaluation of the physiological response has been established by the filtration and respiration capacity of the mussel. That of biochemical response has been studied through biomarkers such as superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA) and acetylcholinesterase (AChE). The estimation of the toxicity of Cu-ZnO NPs through physiological parameters showed that the impact depends on the considered chemical compound and on its concentration. In addition to the contaminant concentration effect, the oxidative stress and neurotoxicity parameters depend on the organ involved. Overall, the use of an integrative approach combining the physiological and biochemical responses represents a good way to understand the relational profile between contaminants and marine organisms that could be part of biomonitoring programs of coastal ecosystems.

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