Adsorption-induced polymerization of 3-methylthiophene at silver-coated glass surfaces and electroactive characteristics

► In this study, the adsorption of 3MT molecules on Ag surface is induced polymerization. ► The Raman spectra have proved that the molecular structures of P3MT are bonded between units to obtain a random molecular architecture, in agreement with the mode of inter-ring stretching. ► The reversible redox of P3MT-modified electrode possesses the electrocatalytic activity for the biosensing applications.