PvdfBead TCS Terrace Yeditepe Tapping Current alkanes medical DeflectionOptics Metal Roughness Gallium PolymerPatterns Epoxy CaMnO3 Implant Aluminum Cancer Conducting Leakage Workfunction PDMS Conduct Conductive AFM MembraneFilter FrictionalForce PVAC TipBiasMode Graphene LogAmplifier self-assembled_monolayer #Materials PolyvinylideneFluoride ChemicalCompound chemical_compound