This study presents a polymer-based carbon-nanotube (CNT) sensing polymer with reversible signal tracking
capabilities. The sensing polymer was prepared by dispersing multi-walled CNTs (MWCNTs) and silver
nanoparticles into the polydimethylsiloxane (PDMS) polymer matrix. Before curing the PDMS prepolymer,
MWCNTs were aligned in the prepolymer, using the dielectrophoresis (DEP) technique. Under an external
force, the polymer increased and retained resistivity, which could be recovered to its original value by
repeating DEP. Similar resistivity behaviors induced by temperature elevation and DEP were also observed.
This study also presents the measured performance and repeatability. The potential applications of the
sensing polymer include reusable inertia switches, footstep tracking carpets, and temperature switches