Plasmonic nanostructures for environmental monitoring and/or biological applications

Yifei Gao; Zhenyu Xu; Zilin Jiang; Natalie Earnhardt; Domna G. Kotsifaki

doi:10.1117/12.2689048

28 November 2023 Plasmonic nanostructures for environmental monitoring and/or biological applications

Yifei Gao, Zhenyu Xu, Zilin Jiang, Natalie Earnhardt, Domna G. Kotsifaki

Proceedings Volume 12774, Plasmonics VII; 127740J (2023) https://doi.org/10.1117/12.2689048
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

In this work, we have identified the size of microplastics collected from Shi Lake, China, using an optical tweezer micro-Raman spectroscopy (OTMRS) system. The microplastics were classified based on their size as products of degradation of large plastic material. Most of them were in the sub-20 μm regime. On the other hand, as nanoplastics may be more extensively distributed and hazardous than larger-sized plastics, their detection is a key point. Thus, we have designed a planar metamaterial structure and have studied the near-field enhancement in order to detect and analyze nanoplastics in aquatic environments with high sensitivity and selectivity. This study paves a way to improve our knowledge of small plastics abundance and pollution in freshwater around Shi Lake.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yifei Gao, Zhenyu Xu, Zilin Jiang, Natalie Earnhardt, and Domna G. Kotsifaki "Plasmonic nanostructures for environmental monitoring and/or biological applications", Proc. SPIE 12774, Plasmonics VII, 127740J (28 November 2023); https://doi.org/10.1117/12.2689048

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