Measuring and assessment of impedance spectrum of collagen thin films in the presence of deionized water

Abstract Collagen is the major structural protein in the human body, which plays a significant role in retaining the structural and biological integrity of the extracellular matrix. In this study, the electrical impedance of collagen thin films on gold electrodes on an FR4 substrate was measured in dry and humid states. The magnitude and phase of the measured electrical impedances showed a significant difference (P