07/29/2026
Work featured on the cover of the Journal of Materials Chemistry B (Royal Society of Chemistry), led by Assistant Professor Yuecheng "Peter" Zhou and graduate student Xuchen Ren, developed a tunable, label-free optical platform using the polymer PEDOT:PSS to record bioelectric signals without disruptive electrodes or dyes — successfully demonstrating the technique by capturing electrical activity in embryonic chicken hearts.
This work lays the foundation for next-generation, non-invasive tools to study electrical activity in living tissue, with an eye toward future in vivo applications.
Materials graduate student Xuchen Ren, with undergraduate researcher Alexandra Kuhlman-Schneider, found that adding chloride ions during electropolymerization of PEDOT:PSS thin films shifts their electrochromic response and reshapes voltage sensitivity across wavelengths. Using chloride-free films,....