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CortiWatch: watch-based cortisol tracker

Sweat-based analytics have recently caught the attention of researchers and medical professionals alike because they do not require professionally trained personnel or invasive collection techniques to obtain a sample. The following presents a small form-factor biosensor for reporting physiological...

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Detalles Bibliográficos
Autores principales: Rice, Paul, Upasham, Sayali, Jagannath, Badrinath, Manuel, Roshan, Pali, Madhavi, Prasad, Shalini
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Future Science Ltd 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787562/
https://www.ncbi.nlm.nih.gov/pubmed/31608155
http://dx.doi.org/10.2144/fsoa-2019-0061
Descripción
Sumario:Sweat-based analytics have recently caught the attention of researchers and medical professionals alike because they do not require professionally trained personnel or invasive collection techniques to obtain a sample. The following presents a small form-factor biosensor for reporting physiological ranges of cortisol present in ambient sweat (8–151 ng/ml). This device obtains cortisol measurements through low volumes of unstimulated sweat from the user's wrist. We designed a potentiostatic circuit on a printed circuit board to perform electrochemical testing techniques. The detection modality developed for quantifying sensor response to varying cortisol concentrations is a current based electrochemical technique, chronoamperometry (CA). From the results, the sensor can detect cortisol in the physiologically relevant ranges of cortisol; thus, the sensor is a noninvasive, label free, cost-effective solution for tracking cortisol levels for circadian diagnostics.