LateralForce PhaseImaging Polyurethane Hole HexagonalBN tip_bias_mode Carbon NUS_Physics polyvinyl acetate NTU Protein TyphimuriumBiofilm MagneticForce PECurve Pore Magnetostrictive BlockCopolymer ThermalProperties HighAcpectRatio Dimethicone high_resolution NiFe Tungsten_disulfide atomic_steps lithography DLaTGS 2-vinylpyridine alkanes OpticalElement OpticalModulator IVSpectroscopy mechanical_property light_emission temperature controller AFM CntFilm