Flexible Screen-printed MWCNT-based Electrodes

In this study, a stable, flexible, cheap and disposable multiwalled carbon nano tubes (MWCNT)-based screen-printed carbon electrode was developed for fast and sensitive sensor applications. A novel ink was prepared by mixing MWCNT, varnish and liquid paraffin in certain ratios. The ink was then was transferred to an acetate paper using a stencil pattern which had a working, an auxiliary and a reference electrode in its design. Commercial silver paste was used to pattern the reference electrode using the same stencil. First, the ink composition was optimizes and then the electrodes were characterized based on physical stress and electrochemical behavior at different scan rates. According to the results, the flexible electrode exhibited an excellent electrochemical behavior and expected to contribute to wearable biosensor applications due to its stability, sensitivity and flexible structure.