A new technique that uses carbon nanotubes and lasers allows researchers to view pulsing blood vessels of living animals with unprecedented clarity.
Above, Stanford graduate student Guosong Hong, left, and chemistry professor Hongjie Dai look at the vascular structures in a mouse model of peripheral arterial disease with blood vessels shown in great detail using their new imaging technique called near-infrared II fluorescence imaging.
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Photo credit: L.A. Cicero/Stanford