biocompatible CuParticle lift_mode Flake Protein Inorganic_Compound FrictionalForceMicroscopy kelvin probe force microscopy HiVacuum Fujian InorganicCompound Polyaniline Inorganic PhaseImaging DLaTGS thermal_conductivity Ucl oxide_layer cooling Fendb ThermalProperties Composite StrontiumTitanate Conductivity IMT_Bucharest plastic Hafnium_dioxide non_contact Nanostructure NCM plastics OpticalWaveguides Polystyrene Chromium Varistor