Raman Tweezers for Small Microplastics and Nanoplastics Identification in Seawater
| Autor: | Alessandro Magazzù, Fabienne Lagarde, Florent Colas, Quentin Deshoules, Morgan Tardivel, Gireeshkumar Balakrishnan, Marc Lamy de la Chapelle, Onofrio M. Maragò, Maria Grazia Donato, Pietro Giuseppe Gucciardi, Raymond Gillibert |
|---|---|
| Přispěvatelé: | Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 13 (UP13)-Institut Galilée-Université Sorbonne Paris Cité (USPC), Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), CNR Istituto per i Processi Chimico-Fisici (IPCF), Consiglio Nazionale delle Ricerche [Messina] (CNR) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Nanotechnology Environmental pollution 010501 environmental sciences 01 natural sciences Light scattering symbols.namesake chemistry.chemical_compound Microscopy Tweezers Environmental Chemistry Seawater ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences chemistry.chemical_classification [PHYS]Physics [physics] General Chemistry Polymer chemistry Optical tweezers 13. Climate action symbols Polystyrenes Polystyrene Raman spectroscopy microplastiche Plastics Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Environmental Science and Technology Environmental Science and Technology, American Chemical Society, 2019, 53 (15), pp.9003-9013. ⟨10.1021/acs.est.9b03105⟩ Environmental science & technology 53 (2019): 9003–9013. doi:10.1021/acs.est.9b03105 info:cnr-pdr/source/autori:Gillibert, Raymond; Balakrishnan, Gireeshkumar; Deshoules, Quentin; Tardivel, Morgan; Magazzu, Alessandro; Donato, Maria Grazia; Marago, Onofrio M.; de La Chapelle, Marc Lamy; Colas, Florent; Lagarde, Fabienne; Gucciardi, Pietro G./titolo:Raman Tweezers for Small Microplastics and Nanoplastics Identification in Seawater/doi:10.1021%2Facs.est.9b03105/rivista:Environmental science & technology/anno:2019/pagina_da:9003/pagina_a:9013/intervallo_pagine:9003–9013/volume:53 Environmental Science & Technology (0013-936X) (Amer Chemical Soc), 2019-08, Vol. 53, N. 15, P. 9003-9013 |
| ISSN: | 0013-936X 1520-5851 |
| DOI: | 10.1021/acs.est.9b03105⟩ |
| Popis: | Our understanding of the fate and distribution of micro- and nano- plastics in the marine environment is limited by the intrinsic difficulties of the techniques currently used for the detection, quantification, and chemical identification of small particles in liquid (light scattering, vibrational spectroscopies, and optical and electron microscopies). Here we introduce Raman Tweezers (RTs), namely optical tweezers combined with Raman spectroscopy, as an analytical tool for the study of micro- and nanoplastics in seawater. We show optical trapping and chemical identification of sub-20 mu m plastics, down to the 50 nm range. Analysis at the single particle level allows us to unambiguously discriminate plastics from organic matter and mineral sediments, overcoming the capacities of standard Raman spectroscopy in liquid, intrinsically limited to ensemble measurements. Being a microscopy technique, RTs also permits one to assess the size and shapes of particles (beads, fragments, and fibers), with spatial resolution only limited by diffraction. Applications are shown on both model particles and naturally aged environmental samples, made of common plastic pollutants, including polyethylene, polypropylene, nylon, and polystyrene, also in the presence of a thin ecocorona. Coupled to suitable extraction and concentration protocols, RTs have the potential to strongly impact future research on micro and nanoplastics environmental pollution, and enable the understanding of the fragmentation processes on a multiscale level of aged polymers. |
| Databáze: | OpenAIRE |
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