Poster De Conférence Année : 2024

Evaluating Cadmium-Induced Toxicity in Marine Mussels (Mytilus edulis) by Raman Spectroscopy and Chemometrics

Résumé

Evaluating Cadmium-Induced Toxicity in Marine Mussels (Mytilus edulis) by Raman Spectroscopy and ChemometricsDib Omar1, Assaf Ali1, Pean Alexia1, Zalouk-Vergnoux Aurore 2, Thouand Gérald1 and Durand Marie-José1.1Nantes Université, ONIRIS, CNRS, GEPEA, UMR 6144, La Roche-sur-Yon, F-85000, FranceE-mail: omar.dib@univ-nantes.fr2Nantes Université, Institut des Substances et Organismes de la Mer, ISOMer, UR 2160, Nantes, F-44000, FranceRaman spectroscopy is widely used in biology due to its non-invasive analytical capabilities. Several studies have been conducted for medical application, such as the development of cellular markers of carcinogenesis and detection of pathogenic bacteria. In the environmental field, this technique has been used for the detection of microplastic/nanoparticles in organisms. However, only few studies have focused on assessing toxic effects using Raman spectroscopy, reporting its ability to discriminate copper-tolerant yeast isolated from contaminated soil and monitor arsenic toxicity on bacteria. The European Water Framework Directive (WFD) and the Marine Strategy Framework Directive (MSFD) both aim to achieve and maintain a good general water status by 2027. For this, an assessment of the environmental status is necessary, considering chemical pollution and their effects on living organisms. In this context we propose using Raman spectroscopy as a diagnostic tool for evaluating the toxic impact on marine invertebrates. To test this hypothesis, mussels (Mytilus edulis) were exposed to two concentrations of cadmium (50 and 500 µg/L), alongside control groups. Then, the gills and the mantle were analyzed using Raman micro-spectroscopy. Results showed that it is possible to discriminate the mantle of the exposed mussels from the controls, as well as differentiate the two concentrations of exposure.Our results show that Raman spectrometry, coupled with chemometric tools, holds promise and could be used to define a toxic fingerprint for marine invertebrates in environmental risk assessment.

Moule_Poster Primo 2024 (1).pdf (1.72 Mo) Télécharger le fichier

Dates et versions

hal-04654048 , version 1 (19-07-2024)

Identifiants

  • HAL Id : hal-04654048 , version 1

Citer

Marie-José Durand, Omar Dib, Ali Assaf, Alexia Pean, Aurore Zalouk-Vergnoux, et al.. Evaluating Cadmium-Induced Toxicity in Marine Mussels (Mytilus edulis) by Raman Spectroscopy and Chemometrics. PRIMO22, May 2024, Nantes, France. ⟨hal-04654048⟩
131 Consultations
37 Téléchargements

Partager

  • More