Bacterial Antifouling Characteristics of Helicene—Graphene Films Academic Article uri icon


  • Herein, we describe interfacially-assembled [7]helicene films that were deposited on graphene monolayer using the Langmuir-Schaefer deposition by utilizing the interactions of nonplanar (helicene) and planar (graphene) π-π interactions as functional antifouling coatings. Bacterial adhesion of Staphylococcus aureus on helicene-graphene films was noticeably lower than that on bare graphene, up to 96.8% reductions in bacterial adhesion. The promising bacterial antifouling characteristics of helicene films was attributed to the unique molecular geometry of helicene, i.e., nano-helix, which can hinder the nanoscale bacterial docking processes on a surface. We envision that helicene-graphene films may eventually be used as protective coatings against bacterial antifouling on the electronic components of clinical and biomedical devices.

author list (cited authors)

  • Liu, S., Bae, M., Hao, L. i., Oh, J. K., White, A. R., Min, Y., Cisneros-Zevallos, L., & Akbulut, M.

publication date

  • January 1, 2021 11:11 AM