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Chemistry in Pictures: Echoes of microplastics
Patrick and his colleagues relied instead on the inherent absorbance differences between plastic and mammalian tissues. By shooting a pulsed laser at tissue and measuring high-frequency sound waves emitted in response, the researchers found they could map the location of pigment molecules found in plastic however not naturally in the bodies of living creatures. They tested the method by injecting microplastics from ground-up pen lids into mice. This image was taken 1 h after injection, however the plastics were still detectable 3 months later, Patrick says.
He and his team published a paper about the imaging method in might (Adv. Sci. 2026, DOI: 10.1002/advs.202512152).
Submitted by P. Stephen Patrick
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