Measuring blood-glucose levels with more accurate wearables. (IMAGE)

SPIE--International Society for Optics and Photonics

Measuring blood-glucose levels with more accurate wearables.

Caption

(Left) Near-infrared spectroscopy measures pulse signals. Phase differences between the oxyhemoglobin and hemoglobin pulse signals provide a good index for the blood glucose level. (right) Commercial smartwatches come equipped with photodetectors that can be used to monitor blood glucose levels.

Credit

Nakazawa et al., doi 10.1117/1.JBO.29.10.107001.

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