ScanningSpreadingResistanceMicroscopy PvdfFilm DNAProtein cannabinoid TransitionMetal SICM Piezoresponse Sphere Electical&Electronics Deposition MLCC Mapping Sadowski margarine Gallium_Arsenide PDMS Varistor China Pvdf Holes CuParticle align Writing VerticalPFM LDPE fluoroaalkane Titanate Polypropylene Growth PolyimideFilm KelvinProbeForceMicroscopy Mechanical ScanningKelvinProbeMicroscopy neodymium_magnets PrCurve