Electrodeposition of Insulating Thin Film Polymers from Aliphatic Monomers as Transducers for Biosensor Applications

摘要: Molecules can be oxidized anodically or reduced cathodically depending on their chemical functions but only some of them electropolymerized. The electropolymerization process organic molecules leading to conductive, semiconducting insulating polymer takes place at the surface a biased electrode. In this case, modification an electrode surface, that semiconductor conductive one, occurs in irreversible way. Electrodes coated with conducting films, have attracted considerable interest last two decades. A multitude reviews and monographs been written subject (Adhikari et al., 2004). Many electrochemical works were performed aromatic conjugated compounds yielding too. But few studies made up now aliphatic concerning behavior. One reasons comes from problem study thin film which requires characterizations expansive not widespread spectroscopic analysis methods such as x-ray photoelectron spectroscopy AFM imaging for instance. Furthermore, coatings could occur during reaction, neglected long time regarded baneful interference hushing possible up. Electropolymerized polymers possess wide range applications electroanalysis (Kalimuthu 2009), energy storage (Granqvist, 2007), electrocatalysis (Xiao biosensing (Merkoci, corrosion protection (Medrano-Vaca 2008), sensors electronic devices (Liu 2010), electrochromic displays (Reiter etc. Although films formed several ways, is one most convenient advantageous especially thickness control growth. On hand, poly(thiophene), poly(pyrrole), poly(aniline) derivatives are amongst widely studied polymers. This probably due high conductivities forms ability reversibly switch between states by doping undoping. other paid so much attraction. Their growth limited resulting current drop. If does reach more than tens nanometers,