Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 2, Pages 402-404Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.11.052
Keywords
Electrochemically controlled drug release; Nanoporous conducting polymers; Polypyrrole; Fluorescein; Polystyrene template
Categories
Funding
- National Science Foundation [0729869]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0729869] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0748001] Funding Source: National Science Foundation
- Div Of Engineering Education and Centers
- Directorate For Engineering [0812348] Funding Source: National Science Foundation
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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. (C) 2008 Elsevier B.V. All rights reserved.
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