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Hyperspectral TERS Imaging Reveals Strain Heterogeneity in Individual Nanoplastic Particles
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Hyperspectral TERS Imaging Reveals Strain Heterogeneity in Individual Nanoplastic Particles
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Using AFM-based tip-enhanced Raman spectroscopy (TERS) with hyperspectral imaging, researchers characterized the chemical heterogeneity of individual polystyrene nanoplastic particles at nanoscale resolution. The technique revealed unexpected strain and chemical variation within single particles—information inaccessible to bulk spectroscopy—demonstrating TERS as a powerful label-free tool for nanoplastic characterization.
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This study used AFM-based tip-enhanced Raman spectroscopy to map chemical heterogeneity within individual polystyrene nanoplastic particles with nanometer resolution. The results revealed significant internal strain variation across single particles, demonstrating that nanoplastics are not chemically uniform and that TERS can characterize this variability.
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