Iqrar, Syed, Bibi, Aisha, Chinnambedu Murugesan, Raghavan, Hill, Daniel and Rozhin, Alex (2024). Excitation–Emission Fluorescence Mapping Analysis of Microplastics That Are Typically Pollutants. Photochem, 4 (4), pp. 488-500.
Abstract
Micro- and nanoplastics (MNPs) pose a significant threat to marine and human life due to their immense toxicity. To protect these ecosystems, the development of reliable technologies for MNP detection, characterisation, and removal is vital. While FTIR and Raman spectroscopy are established methods for MNP analysis, fluorescence (FL) spectroscopy has recently emerged as a promising alternative. However, most prior research relies on FL emission probing with a single excitation wavelength for MNP detection. In this study, we introduce a two-dimensional (2D) fluorescence excitation–emission (FLE) mapping method for the detection of commonly found microplastics, namely polystyrene (PS), polyethylene terephthalate (PET), and polypropylene (PP). The FLE mapping technique enables the collective recording of emission spectra across a range of excitation wavelengths, revealing the dominant excitation–emission features of different microplastics. This research advances the field by offering a non-destructive and label-free identification of MNP contamination through the use of FL spectral fingerprints.
Publication DOI: | https://doi.org/10.3390/photochem4040030 |
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Divisions: | College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT) College of Engineering & Physical Sciences College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies Aston University (General) |
Funding Information: | This work has received funding from the European Union’s Horizon 2020, under the Marie Skłodowska-Curie Innovative Training Networks (MSCA-ITN-ETN) grant agreement number 860775. |
Additional Information: | Copyright © 2024 World Health Organization. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the terms of the Creative Commons Attribution IGO License (https://creativecommons.org/licenses/by/3.0/igo/legalcode), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In any reproduction of this article there should not be any suggestion that WHO or this article endorse any specific organisation or products. The use of the WHO logo is not permitted. This notice should be preserved along with the article's original URL. |
Uncontrolled Keywords: | fluorescence spectroscopy,label-free sensing,microplastic detection,Chemistry (miscellaneous) |
Data Access Statement: | The raw data supporting the conclusions of this article will be made available by the authors on request. |
Last Modified: | 01 Apr 2025 07:11 |
Date Deposited: | 29 Nov 2024 14:44 |
Full Text Link: | |
Related URLs: |
https://www.mdp ... 673-7256/4/4/30
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2024-12 |
Published Online Date: | 2024-11-28 |
Accepted Date: | 2024-11-25 |
Authors: |
Iqrar, Syed
Bibi, Aisha Chinnambedu Murugesan, Raghavan Hill, Daniel ( ![]() Rozhin, Alex ( ![]() |