Non-invasive real-time biosensing of physiologic hydration status via ultra-compact laser-based short-wave infrared spectrophotometry

Jennifer L. Corso; Mathew Paul; Srinivas Laxminarayan; Sean Merritt

doi:10.1117/12.2664051

15 June 2023 Non-invasive real-time biosensing of physiologic hydration status via ultra-compact laser-based short-wave infrared spectrophotometry

Jennifer L. Corso, Mathew Paul, Srinivas Laxminarayan, Sean Merritt

Author Affiliations +

Proceedings Volume 12516, Next-Generation Spectroscopic Technologies XV; 1251610 (2023) https://doi.org/10.1117/12.2664051
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Conference Poster

Abstract

The development of an ultra-compact, short-wave infrared spectrophotometer small enough to fit in a wrist-based wearable device produces the capability for non-invasive and real-time measurement of various physiologic biochemistries that cannot be interrogated with the same accuracy when using light emitting diodes (LEDs) and common photoplethysmography (PPG) applications. By producing many discrete and individually-generated light sources from tens of laser diodes on a single, silicon-based photonics integrated circuit (PIC), this new platform enables us to determine a user’s body temperature, hydration status, and concentrations of solutes within the dermal interstitial fluid, potentially useful in monitoring health in a novel way.

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Jennifer L. Corso, Mathew Paul, Srinivas Laxminarayan, and Sean Merritt "Non-invasive real-time biosensing of physiologic hydration status via ultra-compact laser-based short-wave infrared spectrophotometry", Proc. SPIE 12516, Next-Generation Spectroscopic Technologies XV, 1251610 (15 June 2023); https://doi.org/10.1117/12.2664051

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