PMNPT Techcomp EPFL Filter InorganicCompound FM-KPFM LowDensityPolyethylene Wang Glass Permalloy Stiffness Biofilm FrictionalForceMicroscopy AM_SKPM fifber ForceVolumeMapping Cross-section TappingMode contact SPMLabs Roughness Vortex food LeakageCurrent BlockCopolymer Electronics Liquid Oxidation Chrome CopperFoil Piranha Bacterium Sphere ImideMonomer StrontiumTitanate