Ceramic Scratch non_contact Grain 2dMaterials Polyurethane LiftMode NtuEee HighAcpectRatio Switching Thermoplastic_polyurethane Leakage Nanostructure NCM Display CP-AFM OpticalModulator biocompatible layers Conduct piezoelectric force microscopy EFMAmplitude Piranha Hydroxyapatite PetruPoni chemical_compound ScanningKelvinProbeMicroscopy block_copolymer DomainSwitching LifeScience Indent Polydimethylsiloxane StrontiumTitanate Calcite frequency_modulation