Biomaterials Volume 30, Issue 22, August 2009, Pages 3637-3644

Cell attachment functionality of bioactive conducting polymers for neural interfaces

Rylie A. Green, Nigel H. Lovell, Laura A. Poole-Warren



Fig. 12. Oxidation and reduction behaviour of conducting polymers are dependent on dopant size. Small anion A⁻ is able to migrate in and out of the PPy matrix to balance the charge across the backbone. Large anion B⁻ is immobilised within the PPy matrix and hence relies on smaller cation X⁺ to migrate into the polymer from the surrounding electrolyte and maintain charge balance across the polymer.