FrictionalForceMicroscopy BismuthFerrite Cancer nanomechanical mechanical_property HumanHair Scratch Perovskite Lateral_Force_Microscopy IIT-chennai Ucl India Potential Plug Thermal Sio2 Semiconductor MoS2 CarbonNanotube Chungnam_National_University Korea FrictionForce Singapore Ptfe MfmPhase SingleLayer dielectric_trench Friction ForceVolume conductive #Materials Patterns HydroGel CompactDisk Reading