Jiang Z, Erol O, Chatterjee D, Xu W, Hibino N, Romer LH, Kang SH, Gracias DH. Direct Ink Writing of Poly(tetrafluoroethylene) (PTFE) with Tunable Mechanical Properties. ACS Appl Mater Interfaces. 2019 Aug 07; 11(31):28289-28295.