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City University of Hong Kong researchers developed a multiwavelength optical resolution photoacoustic microscopy (OR-PAM) system based on a single laser source. The system enables simultaneous multicontrast imaging of hemoglobin concentration, blood flow speed, blood oxygen saturation, and lymphatic concentration. Information, at the level the new system is able deliver, provides subcellular insights useful for the study of disease models, such as in cancer research.
Photoacoustic imaging works from the platform of the intrinsic absorption properties of the targeted biological tissue. When targeted by a laser beam, the tissue absorbs the light and generates heat, starting a process that causes thermal expansion and, from it, a…READ MORE