eprintid: 19844
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/98/44
datestamp: 2024-06-04 14:19:34
lastmod: 2024-06-04 14:19:34
status_changed: 2024-06-04 14:16:01
type: article
metadata_visibility: show
creators_name: Silverio, A.A.
creators_name: Ho, E.T.W.
creators_name: Ang, J.
creators_name: Esguerra, K.
title: Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements
ispublished: pub
keywords: Calorimetry; Flow rate; Fluidic devices; Heat convection; Substrates; Thermal gradients; Wearable sensors, Calorimetric flow rate sensor; Channel modelling; Flow rate sensors; Microfluidic channel modeling; Microfluidics channels; Rate sensing; Real- time; Sweat rate sensing; Sweat rates; Wearable devices, Microfluidics
note: cited By 0
abstract: This work presents the design and fabrication of a wearable microfluidic patch-based system for sweat collection with a calorimetric flow rate sensor based on heat convection for measuring sweat rate (SR). The effects were predicted using a 3D multi-physics simulator and were verified on a fabricated patch made of polyimide layers. The sensor can detect surface temperature gradients of 302-312 K caused by fluid flowing thru the microfluidic channels at a rate of 0.5-23 µg s�1 that fall within the physiological range of SR. Meanwhile, the relation between flow rate and temperature gradient is highly linear (Pearson r2 = 0.999) and repeatable. This work also demonstrates a low-cost method for patterning microfluidic channels on flexible substrates which can be used for mass production of wearable patches. © 2024 IOP Publishing Ltd.
date: 2024
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185542062&doi=10.1088%2f1361-6439%2fad2305&partnerID=40&md5=7f9b2a7b6735c4233a2a633674127263
id_number: 10.1088/1361-6439/ad2305
full_text_status: none
publication: Journal of Micromechanics and Microengineering
volume: 34
number: 3
refereed: TRUE
citation:   Silverio, A.A. and Ho, E.T.W. and Ang, J. and Esguerra, K.  (2024) Wearable microfluidic sweat collection platform with a calorimetric flow rate sensor for realtime and long-term sweat rate measurements.  Journal of Micromechanics and Microengineering, 34 (3).