Polytetrafluoroethylene Etch thermal_property FrictionalForceMicroscopy AnodizedAluminumOxide Film Polyvinylidene_fluoride HardDisk Aggregated_molecules Leakage PtfeMembrane self-assembly rubber Polypropylene SiliconOxide GaN norganic BreastCancerCell mechanical_property oxide_layer InorganicCompound LiftMode Gold Edwin Phosphide Copper Growth Hafnia SKKU Praseodymium Al2O3 silicon_carbide InsulatorFilm PVA Array