LateralForceMicroscopy Fendb Genetic C36H74 PatternedSapphireSubstrat Annealing Treatment NUS Gallium_Arsenide NanoLithography HfO2 Wildtype Scanning_Thermal_Microscopy InsulatorFilm TemperatureControlledAFM dielectric_trench Sio2 H-BN Polyvinylidene HydroGel BiasMode Melt Hole multi_layer HexacontaneFilm high_resolution Adhesive OxideLayer Carbon FrictionalForce IIT-chennai Non-ContactMode electrospinning University_of_Regensburg Gold