Wearable plasmonic biofluid sensors as your photonic skin

Abstract

Noninvasive monitoring of markers in biofluids is of paramount significance for health and welfare, which is being integrated into the next-generation consumable wearables. Movement-free sweat extraction and continuous monitoring of fresh sweat are two major challenges for wearable plasmonic sweat sensors. In this perspective, we highlight recent approaches that integrated an electronic sweat extraction system and a microfluidic system with plasmonic sensors to address the challenge. The future directions of systematic integration and miniaturization are discussed.

Keywords

Wearable electronics / surface-enhanced Raman spectroscopy / sweat sensor / biomarkers / noninvasive monitoring / health status

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