Glycine-based Flexible Biocompatible Piezoelectric Pressure Sensor for Healthcare Applications

Hosseini, Ensieh S.; Manjakkal, Libu; Shakthivel, Dhayalan; Dahiya, Ravinder

Abstract

This work presents biocompatible flexible piezoelectric composite fabricated by self-assembly of amino acid glycine molecules inside natural chitosan polymer. Piezoelectric composite film consists of glycine spherulite structure embedded in chitosan matrix. The x-ray diffraction confirms the crystallization of stable β-glycine inside the composite and hence its piezoelectric nature. As a result, a simple solvent-casting technique have been used to fabricate the biodegradable composite of β-glycine/chitosan with significant piezoelectric response. We show that the piezoelectric sensor can precisely measure pressure in the range of 0-40 kPa with sensitivity of ∼4.7 mV kPa−1. The devices based on bio-based functional material such as glycine offer huge potential for disposable wearable health applications such as monitoring the pressure in a compression bandage.

Citation

Hosseini, E. S., Manjakkal, L., Shakthivel, D., & Dahiya, R. (2020). Glycine-based Flexible Biocompatible Piezoelectric Pressure Sensor for Healthcare Applications. In 2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). https://doi.org/10.1109/fleps49123.2020.9239575

• Conference Name: 2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
• Conference Location: Manchester, UK
• Start Date: Aug 16, 2020
• End Date: Aug 19, 2020
• Online Publication Date: Oct 30, 2020
• Publication Date: 2020
• Deposit Date: Jul 28, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
• DOI: https://doi.org/10.1109/fleps49123.2020.9239575
• Keywords: Flexible Electronics, Biocompatible Materials, Piezoelectric, Glycine, Pressure Sensor
• Public URL: http://researchrepository.napier.ac.uk/Output/2893028