Carbon nanotube strain sensors for wearable patient monitoring applications

Jose K. Abraham; Lavanya Aryasomayajula; Ashwin Whitchurch; Vijay K. Varadan

doi:10.1117/12.776181

26 March 2008 Carbon nanotube strain sensors for wearable patient monitoring applications

Jose K. Abraham, Lavanya Aryasomayajula, Ashwin Whitchurch, Vijay K. Varadan

Proceedings Volume 6931, Nanosensors and Microsensors for Bio-Systems 2008; 69310J (2008) https://doi.org/10.1117/12.776181
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

Wearable health monitoring systems have recently attracted widespread interest for their application in long term patient monitoring. Wireless wearable technology enables continuous observation of patients while they perform their normal everyday activities. This involves the development of flexible and conformable sensors that could be easily integrated to the smart fabrics. Carbon nanotubes are found to be one of the ideal candidate materials for the design of multifunctional e-textiles because of their capability to change conductance based on any mechanical deformation as well as surface functionalization. This paper presents the development and characterization of a carbon nanotube (CNT)-polymer nanocomposite flexible strain sensor for wearable health monitoring applications. These strain sensors can be used to measure the respiration rhythm which is a vital signal required in health monitoring. A number of strain sensor prototypes with different CNT compositions have been fabricated and their characteristics for both static as well as dynamic strain have been measured.

Citation Download Citation

Jose K. Abraham, Lavanya Aryasomayajula, Ashwin Whitchurch, and Vijay K. Varadan "Carbon nanotube strain sensors for wearable patient monitoring applications", Proc. SPIE 6931, Nanosensors and Microsensors for Bio-Systems 2008, 69310J (26 March 2008); https://doi.org/10.1117/12.776181

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