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The Gx Sweat Patch for personalized hydration management

The Gx Sweat Patch is a wearable microfluidic sweat sensor that can be worn by athletes to monitor their sweating rate and sweat chloride concentration. Here, we highlight the commercialization of the Gx Sweat Patch, from developing and optimizing prototypes of a wearable sweat-sensing platform, to validation in competitive individual and team-sport athletes, and the challenges of commercial launch.

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Fig. 1: Gx Sweat Patch and software application.

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Acknowledgements

The views expressed in this manuscript are those of the authors and do not necessarily reflect the position or policy of PepsiCo, Inc. The authors thank the extensive team of scientists at the Gatorade Sports Science Institute (GSSI) for data collection and J. Carter and J. Stofan from GSSI for overall project support. The authors also thank J. A. Wright, M. Seib, D. E. Wright, G. Fagans, W. Li and J. A. Rogers at Epicore Biosystems and Northwestern University.

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Correspondence to Roozbeh Ghaffari.

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L.B.B. is employed by the Gatorade Sports Science Institute, a division of PepsiCo R&D. R.G., S.P.L., A.J.A. and J.B.M., are cofounders and/or employees of Epicore Biosystems Inc., a company that develops wearable microfluidic devices.

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Ghaffari, R., Aranyosi, A.J., Lee, S.P. et al. The Gx Sweat Patch for personalized hydration management. Nat Rev Bioeng 1, 5–7 (2023). https://doi.org/10.1038/s44222-022-00005-5

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