Wearable skin patch monitors hemoglobin in deep tissues

A team of engineers has developed a photoacoustic patch that can monitor biomolecules in deep tissues, including hemoglobin. It can perform 3D mapping of hemoglobin with a submillimeter spatial resolution in deep tissues, down to centimeters below the skin, versus other wearable electrochemical devices that only sense the biomolecules on the skin surface.

from Latest Science News -- ScienceDaily https://ift.tt/VLIr0oQ