Label-free vibrational imaging of microplastics in environmental and biological samples
발표자
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초록
내용
Label-free vibrational imaging technology is increasingly attracting attention in microplastic (MP) research areas because of its non-destructive, non-invasive, and direct chemical imaging capabilities. Here, we demonstrate that a coherent anti-Stokes Raman scattering (CARS) microspectroscopy enables rapid detection and identification of MPs (＜30 μm) in non-chemically treated environmental and biological samples, where many chemically different particles with indistinguishable shapes and sizes coexist. A feasibility study was conducted on MPs in soil and MP-internalized biological samples (e.g. marine life, live cells, etc.). We anticipate that our CARS technique will be of great use for investigating the bioaccumulation and biotransport of MPs without pre-labeling or analyzing MPs in environmental samples without complex chemical treatments.