Fiber ThinFilm Ni81Fe19 ConductiveAFM Stiffness TyphimuriumBiofilm bias_mode ForceVolumeMapping Dental NeodymiumMagnets Lateral_Force_Microscopy EFM mfm_amplitude nanomechanical Roughness AIN DeflectionOptics polymeric_arrays F14H20 Chemical Vapor Deposition Korea NTU NCM ThermalProperties Biofilm FM-KPFM DataStorage Copolymer ElectrostaticForceMicroscopy PhaseImaging IIT-chennai PolyimideFilm temp Zagreb temp_control