molecules Mechinical PhaseImaging SiliconCrystal alkanes Ucl Stiffness Piezoresponse lift_mode NUS_Physics Gallium_Arsenide Imprint frequency_modulation Mapping Ananth Temperature polyvinyl acetate 2d_materials mechanical property Neodymium HighAcpectRatio MultiLayerCeramicCapacitor Hexatriacontane Display CrossSection TiO2 Tungsten TyphimuriumBiofilm ThermalDetectors Ecoli Lattice PVAC piezoelectric force microscopy ScratchMode Cancer