5:00 PM - 5:15 PM
▼ [13p-N322-13] Electrochemical characterization of highly conductive PEDOT:PSS:Poly(acrylamide)-based hydrogels containing phenylboronic acid
Keywords:conductive polymer, phenylboronic acid, organic electrochemical transistor
In the aftermath of the novel coronavirus pandemic, the need for tools that enable personalized health care at the point-of-care is salient. Reaching this goal requires sensors built on smart, functional materials that mediate electronic and ionic regimes, are mechanically compliant and flexible, and crucially, stable and biocompatible. Hydrogels of conductive polymers fit this profile excellently. In this study, we perform electrochemical characterization of interpenetrating network hydrogels composed of the widely adopted PEDOT:PSS, and a poly(acrylamide)-based gel that comprises phenylboronic acid. Acrylamide monomers are polymerized after suspension in prepared PEDOT formulations. After re-swelling in electrolytes, the resulting hydrogels have comparable conductivity to the state-of-the-art, despite our simple approach. The inclusion of phenylboronic acid gives rise to a redox peak in cyclic voltammetry that indicates its activity as a secondary dopant of PEDOT.