Rapid single-particle chemical imaging of nanoplastics by SRS microscopy
Abstract
Micro-nano plastics originating from the prevalent usage of plastics have raised increasingly alarming concerns worldwide. However, there remains a fundamental knowledge gap in nanoplastics because of the lack of effective analytical techniques. This study developed a powerful optical imaging technique for rapid analysis of nanoplastics with unprecedented sensitivity and specificity. As a demonstration, micro-nano plastics in bottled water are analyzed with multidimensional profiling of individual plastic particles. Quantification suggests more than 105 particles in each liter of bottled water, the majority of which are nanoplastics. This study holds the promise to bridge the knowledge gap on plastic pollution at the nano level.
- Publication:
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Proceedings of the National Academy of Science
- Pub Date:
- January 2024
- DOI:
- Bibcode:
- 2024PNAS..12100582Q