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Detecting polystyrene nanoplastics using filter paper-based surface-enhanced Raman spectroscopy
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Researchers developed a filter paper-based surface-enhanced Raman spectroscopy (SERS) method for detecting polystyrene nanoplastics, achieving a detection limit of 10 μg/mL using gold nanoparticles deposited on filter paper with only 50 μL sample volume.
This work presents a novel filter paper-based method using surface-enhanced Raman spectroscopy (SERS), for detecting polystyrene nanoplastics (PSNPs). The SERS system used a simple mixture of spherical Au nanoparticles (AuNPs) and 20 nm nanoplastics deposited onto a filter paper which offered a detection limit of 10 μg mL-1 with a sample volume of 50 μL, and in a rare case 5.0 μg mL-1 (with four aliquits of 50 μL).
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This paper demonstrates the detection of 100 nm polystyrene nanoplastic particles using surface-enhanced Raman spectroscopy (SERS) with gold nanoparticles. The method provides an efficient approach for detecting nanoplastics below the size threshold detectable by conventional spectroscopy techniques.
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Researchers developed a surface-enhanced Raman spectroscopy (SERS) method capable of detecting and quantifying polystyrene plastic particles of various sizes — including nanoplastics — in real environmental water samples at ultrasensitive concentrations.
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This study developed an improved surface-enhanced Raman scattering (SERS) method for detecting and quantifying nanoplastics, overcoming the size-dependent limitations that previously hindered this technique. The method successfully quantified polystyrene nanoplastics ranging from 100 nm to 1 µm in size, offering a new analytical tool for environmental nanoplastic monitoring.
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