Toward wearable patch for sweat analysis

Dam, V.A.T.; Zevenbergen, Marcel A. G.; Schaijk, R. van

doi:10.1016/j.snb.2016.01.143

Cited by 61 publications

(45 citation statements)

References 18 publications

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“…and Dam, et al. the discrepancy in their work is minor or not at all visible . However, they only used commercial ISEs for comparison measurements, but these ISEs probably responded similar to the interference of the sweat components as the printed ISEs.…”

Section: Resultscontrasting

confidence: 99%

“…Here, several approaches are reported. Typically, the concentration of sodium in sweat or the chloride concentration are analyzed. Also different approaches for the measurement of multiple ions in sweat for CF diagnostics are shown, e. g. Parrilla, et al., who measured sodium and potassium , or by Lynch, et al., who measured sodium, potassium and chloride in sweat .…”

Section: Introductionmentioning

confidence: 99%

“…In the field of sports performance diagnostics, physiological information gets accessible not only to professional athletes, but also to hobby athletes by using electrochemical sensors thanks to their easy applicability. Mainly, the reports address the dehydration during sporting activities by determining the sodium concentration in sweat . Moreover, determining the ammonium concentration in sweat, it is also possible to detect the anaerobic threshold , which so far can only be done by a medical specialist during expensive endurance tests measuring the lactate concentration in blood.…”

Section: Introductionmentioning

confidence: 99%

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Human Sweat Analysis Using a Portable Device Based on a Screen‐printed Electrolyte Sensor

et al. 2017

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Analysis of ammonium in human sweat during physical strain using a portable sensor device and enzymatic measurements are compared. The portable device is based on a screen‐printed electrolyte sensor connected with an evaluation board for data acquisition and transfer. During performance tests with artificial sweat, the sensor shows a low detection limit of 0.3 mM. Thus, the typical concentration range of ammonium in sweat lies within the working range of the sensor. We also demonstrate the necessity of the comparison measurement for verification of the correct performance of screen‐printed sensors and show how other components of human sweat influence the measured potential. Regarding the change in ammonium concentration during different levels of work out intensity, we point out a different behavior of what is expected physiologically. With this the importance of consideration of several parameters during sweating, like the sweat rate and other ingredients in human sweat, was demonstrated for correct determination of the ammonium concentration.

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Section: Resultscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Human Sweat Analysis Using a Portable Device Based on a Screen‐printed Electrolyte Sensor

et al. 2017

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“…In these sensors, the hydrogel pHEMA was both used as the internal electrolyte for the reference electrode and for the ion-selective electrodes. Integrated in a patch we demonstrated real-time monitoring of chloride concentration in sweat [4]. The hydrogel pHEMA has drawbacks however: it requires UV curing and conditioning in fluid for the KCl loading before usage [4].…”

Section: Introductionmentioning

confidence: 99%

“…Integrated in a patch we demonstrated real-time monitoring of chloride concentration in sweat [4]. The hydrogel pHEMA has drawbacks however: it requires UV curing and conditioning in fluid for the KCl loading before usage [4]. Furthermore, the hydrogel is in direct contact with the sample and therefore chloride ions leach out slowly from the internal electrolyte layer leading to drift of the reference electrode.…”

Section: Introductionmentioning

confidence: 99%

Solid-Contact Reference Electrode for Ion-Selective Sensors

Dam¹,

Goedbloed²,

Zevenbergen³

2017

Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017

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This work presents a flexible miniaturized ion-selective sensor consisting of a solidcontact reference electrode (RE) and ion-selective electrodes (ISE) fabricated on the same foil. The flexible ion sensor was based on AgCl electrodes screen printed on polyethylene terephthalate foil. The RE was formed by casting a mixture of plasticized polyvinylchloride (PVC) and KCl on the AgCl electrode. The ISE consisted of a stack of AgCl electrode, cellulose gel layer loaded with 0.1 M KCl, and plasticized PVC based ion-selective membrane containing ionophores. The flexible ion sensor showed a sensitivity close to the Nernstian value in a biological relevant range.

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