Pure PEDOT:PSS hydrogels

Abstract Hydrogels of conducting polymers, particularly poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS), provide a promising electrical interface with biological tissues for sensing and stimulation, owing to their favorable electrical and mechanical properties. While existing methods mostly blend PEDOT:PSS with other compositions such as non-conductive polymers, the blending can compromise resultant hydrogels’ mechanical and/or electrical properties. Here, we show that designing interconnected networks of PEDOT:PSS nanofibrils via a simple method can yield high-performance pure PEDOT:PSS hydrogels. The method involves mixing volatile additive dimethyl sulfoxide (DMSO) into aqueous…

• NS
  National Science Foundation

  Award: CMMI-1661627
• NN
  National Natural Science Foundation of China

  Award: 51763010
• CS
  China Scholarship Council

  Award: 201608360062
• KR
  Key Research and Development Program of Jiangxi Province

  Award: 20171BBH80007
• S
  Samsung
• DO
  Division of Civil, Mechanical and Manufacturing Innovation

  Award: CMMI-1661627
• DO
  Division of Materials Sciences and Engineering