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Communication Dans Un Congrès Année : 2018

Polymer science for an overall study of micro and nanoplastic hazards: Sources, fate and effects

Résumé

Novel samplers have been developed to sequester and conc. org. pollutant and contaminants. They differ from classic samplers by their unique geometry as a result of the manufg. technique. A droplet-​flow millifluidic process allowed precise control of the size and the geometry and the sensors have been called Diffusive Milligel Beads (DMG)​. DMG opens a lot of perspectives and opportunities in environmental monitoring. Developed in a first approach to detect heavy metal in soils, they are now dedicated to better understand the dynamic and the fate of nanoplastics (NPs) in freshwater and seawater. Not only is the toxicity of NPs of major concern, but also NPs assocd.-​toxicants. DMG are designed to give a comprehensive approach of the Trojan horse effect of nanoplastics (NPs)​. This term was recently used to warn the community about the notion of microplastic and a fortiori NPs concg. pollutants acquired from the surrounding environment and potentially releasing them into tissues or cells of the ingesting organism as bioavailable contaminants. The study includes an overall approach to address several issues: the elaboration of representative NPs in terms of size, size distribution, morphol. and chem. compn., the NPs characterization via hyphenated methods, and to the evaluation of the pollution level, the evaluation of the biodisponibility and the toxicity of metals mediated by NPs.
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Dates et versions

hal-01975311 , version 1 (09-01-2019)

Identifiants

  • HAL Id : hal-01975311 , version 1

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Stephanie Reynaud, Bruno Grassl, Hind El-Hadri, Julien Gigault. Polymer science for an overall study of micro and nanoplastic hazards: Sources, fate and effects. 256th ACS National Meeting Exposition, Aug 2018, Boston, United States. pp.POLY-173. ⟨hal-01975311⟩
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