Wearable health sensors such as photoplethysmography (PPG) wristbands, ECG patches and multi-modal biometric devices are typically developed and calibrated under controlled laboratory conditions.
When you’re driving your car, you’re probably regularly looking at the speedometer to make sure you comply with the local speed limits. The method by which it works is simple enough: ...
Researchers developed a transparent smart contact lens that uses gold nanoparticle-embedded PEDOT:PSS nanowires to improve ...
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