Detection of Plastic Nanoparticles in Aqueous Enviroment Based on Optical Manipulation in Combination with Raman Spectroscopy

0567619 - ÚPT 2023 RIV US eng C - Conference Paper (international conference)
Bernatová, Silvie - Kizovský, Martin - Donato, M. G. - Foti, A. - Zemánek, Pavel - Samek, Ota - Marago, O. M. - Ježek, Jan - Gucciardi, P. G. … Total 10 authors
Detection of Plastic Nanoparticles in Aqueous Enviroment Based on Optical Manipulation in Combination with Raman Spectroscopy.
2022 IEEE International Workshop on Metrology for the Sea, Learning to Measure Sea Health Parameters (MetroSea). Proceedings. New York: IEEE, 2022, (2022), s. 349-352. ISBN 978-1-6654-9942-2.
[2022 IEEE International Workshop on Metrology for the Sea. Milazzo (IT), 03.10.2022-05.10.2022]
Grant - others:AV ČR(CZ) MSM100652101
Program: Program na podporu mezinárodní spolupráce začínajících výzkumných pracovníků
Institutional support: RVO:68081731
Keywords : microplastics * nanoplastics * plasmonics * Surface Enhanced Raman Spectroscopy * thermoplasmonics
OECD category: Optics (including laser optics and quantum optics)
https://ieeexplore.ieee.org/document/9950839

Our planet's ecosystem is supersaturated with non-degradable plastic waste. The degradation of plastic items results in the generation of microplastic and nanoplastic particles. Detection of these kinds of particles still faces challenges due to the limitations of current detection methods and instruments, especially for what concerns the sub-10 mu m fraction. Herein, we report on a new optical method for optical aggregation that allows us to detect nanoplastics. We summarize recent progress in our experiments that use optical nanoimprinting of plasmonic metal nanoparticles to create the active aggregates that can be used for Surface Enhanced Raman Spectroscopy (SERS) detection of biomolecules in microfluidic circuits and as plasmon-enhanced thermoplasmonic concentrators for nanoscale particulate matter such as nanoplastics. In both cases enhanced sensitivity is demonstrated, enabling the detection of nanoparticles/molecules of size/concentration orders of magnitude lower than what can be done by Raman spectroscopy or Raman Tweezers.
Permanent Link: https://hdl.handle.net/11104/0338854