Two-channel sensor measures biomarker concentration in sweat

Sensors applied to the skin hold promise for a non-invasive and low-cost method of identifying key biomarkers in sweat, which could help clinicians make earlier and more accurate diagnoses. Up until now, however, sensors could identify the presence of biomarkers but lacked the ability to accurately detect their concentration in the presence of erratic, intermittent and unpredictable sweat production.

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