Au/Ag NPS Decorated PANI For Electrochemical and Biomedical Applications

Polyaniline (PANI) has number of electronic structure and it depends on the doping. PANI composites containing Fe3O4NPs are regularly studied as the PANI having electrical and magnetic features. Herein, PANI was prepared from aniline and HCl by means of solution mixing using ammonium persulphate as oxidizing agent and catalyst. Composites of polyaniline with calcium carbonate and Au/Ag NPs were prepared. Nanocomposites of PANI were characterized using FTIR, SEM, EDX, electrical conductivity measurement techniques. The incorporation of CaCO3 and Au/Ag NPs in polyaniline matrix was confirmed by SEM, FT-IR and EDX results. CaCO3 act as binder and provide strength to the composite which can be clearly understood by SEM microgram. Electrochemical study of composite has been done which showed that on decorating PANI with gold/silver NPs, the conducting properties increases. We successfully tested the antimicrobial activity of nanocomposite via paper disk diffusion method against Escherichia coli and Staphylococcus aureus.