EIS is a technique to characterize the dielectric properties of an electrochemical system as a function of frequency.
Published in Chapter:
Designing and Evaluation of Aluminium Thin-Film Electrochemical Sensors for Biomedical Analysis
Gaurav Dinesh Kulkarni (National Institute of Technology Rourkela, India), Suraj Kumar Nayak (National Institute of Technology Rourkela, India), Kailash Das (National Institute of Technology Rourkela, India), Jyoti Prakash Kar (National Institute of Technology Rourkela, India), Biswajit Mohapatra (Vesaj Patel Hospital, India), D. N. Tibarewala (School of BioScience and Engineering, Jadavpur University, India), Arfat Anis (King Saud University, Saudi Arabia), and Kunal Pal (National Institute of Technology Rourkela, India)
Copyright: © 2017
|Pages: 24
DOI: 10.4018/978-1-5225-2440-3.ch021
Abstract
In recent years, Electrochemical Impedance Spectroscopy (EIS) has received special attention of the researchers due to its suitability for sensing/analysis of the cells and the biological molecules in a label-free manner. The current study proposes the fabrication of thin-film aluminium electrodes on a glass substrate by thermal evaporation method. The electrodes were fabricated having gaps of varied lengths. Different electrical models were used to determine the electrical stability of the system using an in-lab developed LabVIEW program. The electrode having the best stability was used for EIS analysis of distilled water and saline solutions of different strengths to validate its proper functioning.