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A Polypyrrole-based Strain Sensor Dedicated to Measure Bladder Volume in Patients with Urinary Dysfunction

Sumitra Rajagopalan, Mohamad Sawan, Ebrahim Ghafar-Zadeh, Oumarou Savadogo and Vamsy Chodavarapu

Article (2008)

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Cite this document: Rajagopalan, S., Sawan, M., Ghafar-Zadeh, E., Savadogo, O. & Chodavarapu, V. (2008). A Polypyrrole-based Strain Sensor Dedicated to Measure Bladder Volume in Patients with Urinary Dysfunction. Sensors, 8(8). doi:10.3390/s8085081
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This paper describes a new technique to measure urine volume in patients with urinary bladder dysfunction. Polypyrrole - an electronically conducting polymer - is chemically deposited on a highly elastic fabric. This fabric, when placed around a phantom bladder, produced a reproducible change in electrical resistance on stretching. The resistance response to stretching is linear in 20%-40% strain variation. This change in resistance is influenced by chemical fabrication conditions. We also demonstrate the dynamic mechanical testing of the patterned polypyrrole on fabric in order to show the feasibility of passive interrogation of the strain sensor for biomedical sensing applications.

Uncontrolled Keywords

Strain sensor; elastic properties; gauge factor; impedance spectroscopy; polypyrrole; urinary bladder volume

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1800 Génie chimique
1900 Génie biomédical > 1901 Technologie biomédicale
2500 Génie électrique et électronique > 2500 Génie électrique et électronique
9000 Sciences de la santé > 9000 Sciences de la santé
Department: Département de génie chimique
Département de génie électrique
Research Center: Autre
Funders: CRSNG/NSERC, Canada Research Chair on Smart Medical Devices
Date Deposited: 07 Dec 2018 13:53
Last Modified: 08 Dec 2018 01:20
PolyPublie URL: https://publications.polymtl.ca/3390/
Document issued by the official publisher
Journal Title: Sensors (vol. 8, no. 8)
Publisher: MDPI
Official URL: https://doi.org/10.3390/s8085081


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