Back to Search
Start Over
Raman Tweezers for Small Microplastics and Nanoplastics Identification in Seawater
- Source :
- 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
- Publication Year :
- 2019
- Publisher :
- HAL CCSD, 2019.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- Language :
- English
- ISSN :
- 0013936X and 15205851
- Database :
- OpenAIRE
- Journal :
- 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
- Accession number :
- edsair.doi.dedup.....138b9b872df92d62ec7fb46a2f240b10