Next Article in Journal
AndroShield: Automated Android Applications Vulnerability Detection, a Hybrid Static and Dynamic Analysis Approach
Previous Article in Journal
Bangla DeConverter for Extraction of BanglaText from Universal Networking Language
Open AccessCommunication

Paper-Based Flexible Electrode Using Chemically-Modified Graphene and Functionalized Multiwalled Carbon Nanotube Composites for Electrophysiological Signal Sensing

1
Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
2
Center for Bioelectrics, Old Dominion University Research Foundation, Norfolk, VA 23508, USA
3
Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA
*
Author to whom correspondence should be addressed.
Information 2019, 10(10), 325; https://doi.org/10.3390/info10100325
Received: 5 September 2019 / Revised: 30 September 2019 / Accepted: 17 October 2019 / Published: 22 October 2019
(This article belongs to the Special Issue Ubiquitous Sensing for Smart Health Monitoring)
Flexible paper-based physiological sensor electrodes were developed using chemically-modified graphene (CG) and carboxylic-functionalized multiwalled carbon nanotube composites ([email protected]). A solvothermal process with additional treatment was conducted to synthesize CG and [email protected] to make [email protected] composites. The composite was sonicated in an appropriate solvent to make a uniform suspension, and then it was drop cast on a nylon membrane in a vacuum filter. A number of batches (0%~35% [email protected]) were prepared to investigate the performance of the physical characteristics. The 25% [email protected] composite showed the best adhesion on the paper substrate. The surface topography and chemical bonding of the proposed [email protected] electrodes were characterized by scanning electron microscopy (SEM) and Raman spectroscopy, respectively. The average sheet resistance of the 25% [email protected] electrode was determined to be 75 Ω/□, and it showed a skin contact impedance of 45.12 kΩ at 100 Hz. Electrocardiogram (ECG) signals were recorded from the chest and fingertips of healthy adults using the proposed electrodes. The [email protected] electrodes demonstrated comfortability and a high sensitivity for electrocardiogram signal detection. View Full-Text
Keywords: solvothermal-treated; graphene-based composites; functionalized MWCNTs; flexible dry electrode; electrocardiogram solvothermal-treated; graphene-based composites; functionalized MWCNTs; flexible dry electrode; electrocardiogram
Show Figures

Figure 1

MDPI and ACS Style

Hossain, M.F.; Heo, J.S.; Nelson, J.; Kim, I. Paper-Based Flexible Electrode Using Chemically-Modified Graphene and Functionalized Multiwalled Carbon Nanotube Composites for Electrophysiological Signal Sensing. Information 2019, 10, 325.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop