Researchers used a two-photon phosphorescent probe to monitor capillary flux and oxygen in sets of capillaries, obtaining a robust oxygen and flux estimate within each capillary, sufficient to observe spontaneous stalls in flow. (IMAGE)

SPIE--International Society for Optics and Photonics

Researchers used a two-photon phosphorescent probe to monitor capillary flux and oxygen in sets of capillaries, obtaining a robust oxygen and flux estimate within each capillary, sufficient to observe spontaneous stalls in flow.

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Researchers used a two-photon phosphorescent probe to monitor capillary flux and oxygen in sets of capillaries, obtaining a robust oxygen and flux estimate within each capillary, sufficient to observe spontaneous stalls in flow. They consistently observed a distinct drop in intracapillary oxygen for the duration of the stall, followed by rapid recovery back to normal levels on the resumption of flow. 

Credit

J. Giblin et al., doi 10.1117/1.NPh.12.S2.S22803

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