Limits of the detection of microplastics in fish tissue using stimulated Raman scattering microscopy

We demonstrate the detection sensitivity of microplastic beads within fish tissue using stimulated Raman scattering (SRS) microscopy. The intrinsically provided chemical contrast distinguishes different types of plastic compounds within fish tissue. We study the size-dependent signal-to-noise ratio...

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Bibliographic Details
Published in:Biomedical optics express 2024-03, Vol.15 (3), p.1528-1539
Main Authors: Floess, Moritz, Fagotto-Kaufmann, Marie, Gall, Andrea, Steinle, Tobias, Ehrlich, Ingrid, Giessen, Harald
Format: Article
Language:English
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Summary:We demonstrate the detection sensitivity of microplastic beads within fish tissue using stimulated Raman scattering (SRS) microscopy. The intrinsically provided chemical contrast distinguishes different types of plastic compounds within fish tissue. We study the size-dependent signal-to-noise ratio of the microplastic beads and determine a lower boundary for the detectable size. Our findings demonstrate how SRS microscopy can serve as a complementary modality to conventional Raman scattering imaging in order to detect and identify microplastic particles in fish tissue.
ISSN:2156-7085
2156-7085
DOI:10.1364/BOE.519561