Identification and visualisation of microplastics/nanoplastics by Raman imaging (i): Down to 100 nm

Water Research
Zahra SobhaniCheng Fang

Abstract

While microplastics (1 μm-5 mm) contamination is creating public concern, nanoplastics (<1000 nm) might create even more serious environmental contamination issues. This is likely due to the smaller size/higher specific surface area of nanoplastics which works more efficiently as a vector for other contaminants' transportation and fate, to release the formulation additives and to be accumulated in the human body. The research on nanoplastics is currently hampered by the absence of an effective characterisation method, although X-ray photoelectron spectroscopy/Scanning Electron Microscopy (XPS/SEM) is reportedly dominating the nanoplastics characterisation approaches. Recently, imaging technology, which provides direct visualisation of the targets, is attracting increased attention. In this study, we demonstrate that Raman imaging can be employed to visualise and identify microplastics and nanoplastics down to 100 nm, by distinguishing the laser spot, the pixel size/image resolution, the nanoplastics size/position (within a laser spot), the Raman signal intensity, and via the sample preparation etc. We also validate this technique for the analysis of paint-polishing dust samples that have been collected from a driveway when a ve...Continue Reading

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Citations

Feb 1, 2021·Journal of Hazardous Materials·Manish KumarMohammad J Taherzadeh
Dec 3, 2020·International Journal of Environmental Research and Public Health·Andreas BrachnerWinfried Neuhaus
Dec 8, 2020·The Science of the Total Environment·Bin ZhangQing Wang
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Apr 12, 2021·Marine Pollution Bulletin·Agnieszka Dąbrowska
May 3, 2021·Water Research·Kunsheng HuShaobin Wang
May 20, 2021·Scientific Reports·Ahmed A ElsayedTarik Bourouina
May 31, 2021·Environmental Pollution·Mercedes Lavoy, Jill Crossman
Jun 13, 2021·The Science of the Total Environment·Lina Ramirez ArenasSerge Stoll
Jul 11, 2021·Marine Pollution Bulletin·Maria MasryPascal Wong-Wah-Chung
Jul 13, 2021·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Tohru Saitoh
Aug 1, 2021·Environmental Pollution·Matthew Ming-Lok LeungJames Kar-Hei Fang
Sep 15, 2021·Chemistry : a European Journal·Chiara CapolungoLuca Prodi

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