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Cited by 348

The DOI matches its Crossref record; 90 of the 90 references it cites were found in a registry or an index.

Raman Tweezers for Small Microplastics and Nanoplastics Identification in Seawater

Open access
Gillibert, Raymond, Balakrishnan, Gireeshkumar, Deshoules, Quentin, Tardivel, Morgan, Magazzù, Alessandro, Donato, Maria Grazia, Maragò, Onofrio M., Lamy de La Chapelle, Marc, Colas, Florent, Lagarde, Fabienne, Gucciardi, Pietro G.·2019·Environmental Science & Technology

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 μm 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 eco-corona. 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.

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Crossref · 10.1021/acs.est.9b03105

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Metadata

Authors
Gillibert, R., Balakrishnan, G., Deshoules, Q., Tardivel, M., Magazzù, A., Donato, M. G., Maragò, O. M., Lamy de La Chapelle, M., Colas, F., Lagarde, F., & Gucciardi, P. G.
Venue
Environmental Science & Technology
Published
2019-07-01
Volume
53
Issue
15
Pages
9003-9013
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2955409949
Cited by
348
References
90
FWCI
9.42
Type
journal article
Language
en
Open access
green

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