Please use this identifier to cite or link to this item:
Title: Preparation and property evaluation of conductive hydrogel using poly (Vinyl alcohol)/Polyethylene glycol/Graphene oxide for human electrocardiogram acquisition
Authors: Xiao, XL
Wu, GZ
Zhou, HT
Qian, K
Hu, JL 
Keywords: Cyclic freezing-thawing method
Conductive polymeric hydrogel
Mechanical performance
Electrocardiogram signal
Issue Date: 2017
Publisher: Molecular Diversity Preservation International (MDPI)
Source: Polymers, 2017, v. 9, no. 7, 259 How to cite?
Journal: Polymers 
Abstract: Conductive hydrogel combined with Ag/AgCl electrode is widely used in the acquisition of bio-signals. However, the high adhesiveness of current commercial hydrogel causes human skin allergies and pruritus easily after wearing hydrogel for electrodes for a long time. In this paper, a novel conductive hydrogel with good mechanical and conductive performance was prepared using polyvinyl alcohol (PVA), polyethylene glycol (PEG), and graphene oxide (GO) nanoparticles. A cyclic freezing-thawing method was employed under processing conditions of -40 degrees C (8 h) and 20 degrees C (4 h) separately for three cycles in sequence until a strong conductive hydrogel, namely, PVA/PEG/GO gel, was obtained. Characterization (Fourier transform infrared spectroscopy, nuclear magnetic resonance, scanning electron microscopy) results indicated that the assembled hydrogel was successfully prepared with a three-dimensional network structure and, thereafter, the high strength and elasticity due to the complete polymeric net formed by dense hydrogen bonds in the freezing process. The as-made PVA/PEG/GO hydrogel was then composited with nonwoven fabric for electrocardiogram (ECG) electrodes. The ECG acquisition data indicated that the prepared hydrogel has good electro-conductivity and can obtain stable ECG signals for humans in a static state and in motion (with a small amount of drift). A comparison of results indicated that the prepared PVA/PEG/GO gel obtained the same quality of ECG signals with commercial conductive gel with fewer cases of allergies and pruritus in volunteer after six hours of wear.
ISSN: 2073-4360
DOI: 10.3390/polym9070259
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record


Last Week
Last month
Citations as of Nov 13, 2018


Last Week
Last month
Citations as of Nov 12, 2018

Page view(s)

Last Week
Last month
Citations as of Nov 11, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.