Plasmon-resonant nanostars provide excellent contrast enhancement for photoacoustic tomography claim US scientists. The team behind the research, led by Lihong Wang at Washington University in St Louis, US, say that the high photoacoustic sensitivity of plasmon-resonant nanostars at near-infrared wavelengths enables the in vivo detection in rat sentinel lymph nodes and vessels. These materials could act as contrast agents for lymphangiography.
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