Stretchable wireless system for sweat pH monitoring

Biosensors & Bioelectronics
Wenting DangRavinder Dahiya

Abstract

Sensor-laden wearable systems that are capable of providing continuous measurement of key physiological parameters coupled with data storage, drug delivery and feedback therapy have attracted huge interest. Here we report a stretchable wireless system for sweat pH monitoring, which is able to withstand up to 53% uniaxial strain and more than 500 cycles to 30% strain. The stretchability of the pH sensor patch is provided by a pair of serpentine-shaped stretchable interconnects. The pH sensing electrode is made of graphite-polyurethane composite, which is suitable for biosensor application. The sensing patch validated through in-depth electrochemical studies, exhibits a pH sensitivity of 11.13 ± 5.8 mV/pH with a maximum response time of 8 s. Interference study of ions and analyte (Na+, K+ and glucose) in test solutions shows negligible influence on the pH sensor performance. The pH data can be wirelessly and continuously transmitted to smartphone through a stretchable radio-frequency-identification antenna, of which the radiating performance is stable under 20% strain, as proved by vector network analyzer measurement. To evaluate the full system, the pH value of a human sweat equivalent solution has been measured and wirelessly t...Continue Reading

Citations

Sep 28, 2018·Personalized Medicine·Jessilyn DunnMichael Snyder
Jan 19, 2019·Biosensors·Libu ManjakkalRavinder Dahiya
Mar 19, 2019·Annual Review of Biomedical Engineering·Eun Kwang LeeChi Hwan Lee
Oct 12, 2019·Sensors·Young-Geun ParkJang-Ung Park
Jan 31, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Ren WangWenlong Cheng
May 12, 2020·Advanced Materials·Libu ManjakkalRavinder Dahiya
Jun 22, 2019·Scientific Reports·Victor C DiculescuIonut Enculescu
Jul 26, 2019·Chemical Science·Miao-Miao ChenWei-Hua Huang
Oct 30, 2019·Sensors·Benoît PiroVincent Noël
Jun 28, 2019·Frontiers in Chemistry·Haizhou HuangLitao Sun
Apr 17, 2019·Advanced Science·Libu ManjakkalRavinder Dahiya
Oct 10, 2020·Nano Convergence·Abhishek Singh DahiyaRavinder Dahiya
Feb 12, 2021·Scientific Reports·Mohammadhossein DabaghiJeremy A Hirota
Jul 22, 2018·Biosensors & Bioelectronics·Hiroyuki KaiMatsuhiko Nishizawa
Apr 13, 2021·ACS Applied Bio Materials·Ensieh S HosseiniRavinder Dahiya
May 22, 2021·Advanced Healthcare Materials·Quanxia LyuWenlong Cheng
Jun 5, 2021·International Journal of Biological Macromolecules·Salhah D Al-QahtaniNashwa M El-Metwaly
Jul 24, 2021·ACS Applied Electronic Materials·Fatemeh NikbakhtnasrabadiRavinder Dahiya
Jul 12, 2021·Advanced Materials·Libu ManjakkalRavinder Dahiya
Jul 7, 2021·ACS Applied Materials & Interfaces·Miguel ZeaGemma Gabriel
Oct 2, 2021·ACS Applied Materials & Interfaces·Abhilash PullanchiyodanRavinder Dahiya
Oct 21, 2020··Fatemeh NikbakhtnasrabadiMitradip Bhattacharjee
May 13, 2019··Ravinder DahiyaLibu Manjakkal

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