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Medical Science MonitorVolume 30, June 2024

Enhanced Sweat Biosensing with Thread-Embedded Microfluidic Devices(Article)(Open Access)

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  • aDepartment of Biomedical Engineering, Centre for Innovation in Medical Engineering (CIME), Universiti Malaya, Kuala Lumpur, Malaysia
  • bFaculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
  • cFaculty of Medicine, University of Novi Sad, Novi Sad, Serbia

Abstract

Background: This study explored the integration of conductive threads into a microfluidic compact disc (CD), developed using the xurographic method, for a potential sweat biosensing platform. Material/Methods: The microfluidic CD platform, fabricated using the xurographic method with PVC films, included venting channels and conductive threads linked to copper electrodes. With distinct microfluidic sets for load and metering, flow control, and measurement, the CD’s operation involved spinning for sequential liquid movement. Impedance analysis using HIOKI IM3590 was conducted for saline and artificial sweat solutions on 4 identical CDs, ensuring reliable conductivity and measurements over a 1 kHz to 200 kHz frequency range. Results: Significant differences in |Z| values were observed between saline and artificial sweat treatments. 27.5 μL of saline differed significantly from 27.5 μL of artificial sweat, 72.5 μL of saline from 72.5 μL of artificial sweat, and 192.5 μL of saline from 192.5 μL of sweat. Significant disparities in |Z| values were observed between dry fibers and Groups 2, 3, and 4 (varying saline amounts). No significant differences emerged between dry fibers and Groups 6, 7, and 8 (distinct artificial sweat amounts). These findings underscore variations in fiber characteristics between equivalent exposures, emphasizing the nuanced response of the microfluidic CD platform to different liquid compositions. Conclusions: This study shows the potential of integrating conductive threads in a microfluidic CD platform for sweat sensing. Challenges in volume control and thread coating degradation must be addressed for transformative biosensing devices in personalized healthcare. © 2024 International Scientific Information, Inc.. All rights reserved.

Author keywords

Electrochemical TechniquesMicrofluidicsSweatTextiles

Indexed keywords

EMTREE drug terms:polyamidepolyestersodium chloride
EMTREE medical terms:Articlegenetic procedureshealth carehumanimpedancenanofabricationsweatsweat biosensingchemistrydeviceselectric conductivityelectrodelab on a chipmicrofluidicsprocedures
MeSH:Biosensing TechniquesElectric ConductivityElectric ImpedanceElectrodesHumansLab-On-A-Chip DevicesMicrofluidicsSweat

Chemicals and CAS Registry Numbers:

polyamide, 63428-83-1; sodium chloride, 7647-14-5, 23724-87-0, 49658-21-1

Device tradename:

  • ATmega328,
  • IM3590 impedance analyzer, HIOKI

Manufacturers:

Device manufacturer:

Bonnigheim, Germany;

HIOKI;

Testo

Funding details

Funding sponsor Funding number Acronym
Horizon 2020 Framework Programme
See opportunities by H2020
H2020
H2020 Marie Skłodowska-Curie Actions
See opportunities by MSCA
872370,854194MSCA
H2020 Marie Skłodowska-Curie Actions
See opportunities by MSCA
MSCA
Universiti MalayaRK006-2021UM
Universiti MalayaUM
  • 1

    This research received funding from the European Union\u2019s Horizon 2020 research and innovation programme under the Marie Sk\u0142odowska-Curie grant agreement No. 872370, and European Union\u2019s Horizon 2020 research and innovation programme under the grant agreement No. 854194, and University Malaya Partnership Grant No. RK006-2021

  • 2

    Fatimah Ibrahim, e-mail: [email protected] This research received funding from the European Union\u2019s Horizon 2020 research and innovation programme under the Marie Sk\u0142odowska-Curie grant agreement No. 872370, and European Union\u2019s Horizon 2020 research and innovation programme under the grant agreement No. 854194, and University Malaya Partnership Grant No. RK006-2021 None declared

  • ISSN: 12341010
  • CODEN: MSMOF
  • Source Type: Journal
  • Original language: English
  • DOI: 10.12659/MSM.943321
  • PubMed ID: 38863180
  • Document Type: Article
  • Publisher: International Scientific Information, Inc.

  Ibrahim, F.; Department of Biomedical Engineering, Centre for Innovation in Medical Engineering (CIME), Universiti Malaya, Kuala Lumpur, Malaysia;
© Copyright 2024 Elsevier B.V., All rights reserved.

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