Label-Free Detection of Intracellular Microplastics

O-PTIR enables sub-micron identification of microplastics within intestinal epithelial cells

1

O-PTIR spectroscopy was used to identify microplastics in intestinal epithelial cells without labels or dyes.
2

The study utilized irregularly shaped microplastics from common household polymers to better simulate real-world exposure.
3

O-PTIR provided sub-micron resolution, allowing for the chemical distinction of microplastic particles within cell monolayers.
4

Cells exposed to microplastics exhibited signs of oxidative stress and protein structural changes, indicating biological effects.
5

The integrated approach of O-PTIR confirmed microplastic presence and identity while assessing localized biochemical effects.

1