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News for Healthier Living

Wearable Optical Device Distinguishes Blood Flow Signals From the Brain and Scalp

In APL Bioengineering, researchers develop a system that uses optical spectroscopy to measure blood flow noninvasively. Using speckle contrast optical spectroscopy, the device can target different depths to distinguish between blood flow to the scalp and blood flow to the brain.

October 21, 2025


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