Electrochemically controlled release based on nanoporous conducting polymers
By Luo, Xiliang & Cui, Xinyan Tracy
Published in Electrochemistry Communications
NULL
2009
Abstract
An electrochemically controlled drug release system based on nanoporous polypyrrole (PPy) films was developed. Pyrrole and a model drug, fluorescein, were electrochemically copolymerized on glassy carbon (GC) electrodes modified with self-assembled multilayer polystyrene (PS) nanobeads, and PPy films incorporated with fluorescein as dopants were formed among the interstitial spaces of the tightly packed PS nanobead template. After the removal of the PS hard template, nanoporous PPy films incorporated with the drug fluorescein were obtained. Due to the porous morphology and huge surface area, the efficiency of the prepared PPy films in electrochemically releasing incorporated fluorescein was about nine times higher than that of conventional PPy films.
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