Ucl ContactModeDots Optical ForceVolumeMapping hard_disk_media CuFoil Tin disulfide MagneticForce LiftMode Holes NusEce Imprint PiezoelectricForceMicroscopy Celebration Ferrite SiliconeOxide #EC Phase Inorganic NUS PvdfFilm alkanes MagneticArray Korea block_copolymer DNAProtein VerticalPFM HumanHair MfmPhase FM-KPFM SAM Annealing F14H20 Typhimurium exfoliate