Presentation
10 May 2024 Wearable microfluidic devices for sweat analysis
Limei Tian
Author Affiliations +
Abstract
Wearable sweat sensors have the potential to provide valuable information related to the health and disease states of individuals. Existing sweat sensors mainly rely on biomacromolecules, such as enzymes and antibodies, as biorecognition elements to achieve specific quantification of metabolites and hormones. However, these biomacromolecules tend to degrade over time, limiting the sensors’ shelf life and compromising the sensor performance upon environmental changes, such as varying temperature and humidity. Here, we introduce a wearable plasmonic paper-based microfluidic system to continuously and simultaneously quantify sweat loss, sweat rate, and biochemicals in sweat. Plasmonic sensors based on surface-enhanced Raman spectroscopy (SERS) are label-free and can identify the analytes of interest via the chemical “fingerprint” information. We show that simple and low-cost plasmonic papers allow for detecting and quantifying biochemicals in sweat. The well-defined flow kinetics of paper microfluidic devices enable accurate quantification of sweat loss and sweat rate in real time.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Limei Tian "Wearable microfluidic devices for sweat analysis", Proc. SPIE PC12948, Soft Mechatronics and Wearable Systems, PC129480A (10 May 2024); https://doi.org/10.1117/12.3011432
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KEYWORDS
Microfluidics

Plasmonics

Sensors

Surface enhanced Raman spectroscopy

Environmental sensing

Humidity

Interfaces

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