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The antioxidant activity of conducting polymers in biomedical applications
Paul A. Kilmartin,Corrina Thompson,Jadranka Travas-Sejdic,Graham A. Bowmaker,Ralph P. Cooney,Marija Gizdavic-Nikolaidis 한국물리학회 2004 Current Applied Physics Vol.4 No.2-4
The radical scavenging ability of soluble conducting polymers has been examined using the DPPH assay in comparison withphenolic antioxidant compounds present in the diet. The reducing strength was also determined by voltammetry at a carbonelectrode both in an aqueous pH 7.0 buer, and in methanol as used for the DPPH assay. The conducting polymers were shown tobe good reducing agents and eective scavengers of free radicals, with 24 DPPH radicals being reduced for each aniline or pyrroleunit on the polymer chains. The signicance of this antioxidant capacity for the application of conducting polymers as biomaterialsis considered.