| Abstract Scope |
Nowadays, there is growing interest in portable and disposable electrochemical sensors due to low-cost, small size, simplicity, and excellent analytical performance associated with these devices. Despite these advantages, the main component of the sensor system, screen printed electrode needs a cheaper fabrication procedure without degradation in performance. The present invention provides a method for the fabrication of screen printed electrode using conductive ink based on graphite powder, sodium silicate, and PEDOT: PSS. All materials used are of low-cost and easily obtainable. In addition to it, the screen printing technique has been used to fabricate electrochemical sensor with synthesized conductive ink. The characterization of the screen printed electrode surface were done by scanning electron microscopy, Fourier- transform infrared spectroscopy, and contact angle measurement. The performance was evaluated through cyclic voltammetry using an equimolar solution of [Fe (CN)6]3-/4-. |