LateralForceMicroscopy EFM MfmPhase SiliconeOxide Bio SelfAssembly VerticalPFM mechanical property temperature controller AFM PUR high_resolution NTU Zhi AM_KPFM PhaseChange SurfaceOxidation SFAs Gallium WPlug Phenanthrene TemperatureControlledAFM Nickel CuFoil CrAu Vanadate RedBloodCell StrontiuTitanate CarbonNanotube ShenYang NUSNNI ito_film doped GaAs AlkaneFilm Device