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Wearable Platform for Real‐time Monitoring of Sodium in Sweat
Author(s) -
McCaul Margaret,
Porter Adam,
Barrett Ruairi,
White Paddy,
Stroiescu Florien,
Wallace Gordon,
Diamond Dermot
Publication year - 2018
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201701312
Subject(s) - wearable computer , fabrication , sweat , nanotechnology , computer science , materials science , process engineering , biomedical engineering , computer hardware , embedded system , engineering , medicine , oceanography , alternative medicine , pathology , geology
A fully integrated and wearable platform for harvesting and analysing sweat sodium concentration in real time during exercise has been developed and tested. The platform was largely produced using 3D printing, which greatly simplifies fabrication and operation compared to previous versions generated with traditional production techniques. The 3D printed platform doubles the capacity of the sample storage reservoir to about 1.3 ml, reduces the assembly time and provides simple and precise component alignment and contact of the integrated solid‐state ion‐selective and reference electrodes with the sorbent material. The sampling flowrate in the device can be controlled by introducing threads to enhance wicking of sweat from the skin, across the electrodes to the storage area. The platform was characterised in the lab and in exercise trials over a period of about 60 minutes continuous monitoring. Sweat sodium concentration was found to rise initially to approximately 17 mM and decline gradually over the period of the trial to about 11–12 mM.