University of Oulu

Asamoah, Benjamin O.; Uurasjärvi, Emilia; Räty, Jukka; Koistinen, Arto; Roussey, Matthieu; Peiponen, Kai-Erik. 2021. "Towards the Development of Portable and In Situ Optical Devices for Detection of Micro-and Nanoplastics in Water: A Review on the Current Status" Polymers 13, no. 5: 730.

Towards the development of portable and in situ optical devices for detection of micro-and nanoplastics in water : a review on the current status

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Author: Asamoah, Benjamin O.1; Uurasjärvi, Emilia2; Räty, Jukka3;
Organizations: 1Department of Physics and Mathematics, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu, Finland
2SIB Labs, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
3MITY, University of Oulu, Technology Park, P.O. Box 127, FI-87400 Kajaani, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 3.7 MB)
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Language: English
Published: Multidisciplinary Digital Publishing Institute, 2021
Publish Date: 2021-04-15


The prevalent nature of micro and nanoplastics (MP/NPs) on environmental pollution and health-related issues has led to the development of various methods, usually based on Fourier-transform infrared (FTIR) and Raman spectroscopies, for their detection. Unfortunately, most of the developed techniques are laboratory-based with little focus on in situ detection of MPs. In this review, we aim to give an up-to-date report on the different optical measurement methods that have been exploited in the screening of MPs isolated from their natural environments, such as water. The progress and the potential of portable optical sensors for field studies of MPs are described, including remote sensing methods. We also propose other optical methods to be considered for the development of potential in situ integrated optical devices for continuous detection of MPs and NPs. Integrated optical solutions are especially necessary for the development of robust portable and in situ optical sensors for the quantitative detection and classification of water-based MPs.

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Series: Polymers
ISSN: 2073-4360
ISSN-E: 2073-4360
ISSN-L: 2073-4360
Volume: 13
Issue: 5
Article number: 730
DOI: 10.3390/polym13050730
Type of Publication: A2 Review article in a scientific journal
Field of Science: 114 Physical sciences
Funding: This work is part of the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision 320166.
Copyright information: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (