Stretchable pH Sensing Patch in a Hybrid Package

Dang, W., Manjakkal, L. , Lorenzelli, L., Vinciguerra, V. and Dahiya, R. (2017) Stretchable pH Sensing Patch in a Hybrid Package. In: IEEE Sensors 2017, Glasgow, UK, 30 Oct - 01 Nov 2017, ISBN 9781509010127 (doi: 10.1109/ICSENS.2017.8234297)

150713.pdf - Accepted Version



This work presents a novel stretchable pH sensing patch to detect the pH in body fluid which is one of the most important parameters in human health monitoring. The sensing patch is a hybrid package comprising of polyimide/gold-based stretchable interconnects and graphite composite-based flexible pH sensor. With the integration of stretchable interconnects, the patch is able to withstand external stretching up to 50% longer than its original length. Moreover, the electrical behavior of the patch does not degrade as studied by the real-time resistance investigation. In order to protect the connecting electrodes and wirings from direct contacting with solution under analysis, the sensing patch is encapsulated with elastic polymer with the active sensing area exposed. The fabricated patch reveals a high pH sensitivity of 36.2 μA/pH in the pH range between 5 and 9 which is validated through electrochemical and electroanalytical studies.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Dahiya, Professor Ravinder and Dang, Ms Wenting and Manjakkal, Dr Libu
Authors: Dang, W., Manjakkal, L., Lorenzelli, L., Vinciguerra, V., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Related URLs:

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
663861Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/M002527/1ENG - ENGINEERING ELECTRONICS & NANO ENG