Comparative Studies on the Electrical Properties of PEDOT:PSS Doped SNP Films and Hydrogels for Medical Electrode Applications

Poly (3,4-ethylene dioxythiophene):poly (styrene sulfonate) (PEDOT:PSS) is a promising conductive polymer to be the next-generation electrode for medical purposes. However, PEDOT:PSS exhibits low conductivity (~1×10−3 S cm−1); hence, incorporating silver nanoparticles (SNP) with will improve electrical conductivity. This paper aims investigate properties differences between doped SNP-based films and hydrogels. The two different states of PEDOT:PSS/SNP serves its particular purpose as an electrode. Initially, solution was prepared by homogeneously mixing at constant stirring. Then, drop-casting onto glass substrate produce film, while another part undergoing freeze-thaw method hydrogel. Surface resistance measurement lower values film (0.11 kΩ) than hydrogel (0.59 kΩ). A scanning electron microscope (SEM) utilized observe morphology films, optical (OM) observed surface since they are in states. Fourier Transform Infrared (FTIR) spectra display prominent peaks that described successful blending SNP both These findings demonstrate varying processing methods preparing or hydrogels may influence like electrode, which should provide valuable contribution bioelectronic areas.