Cobalt-dopedIronOxide SurfaceChange strontiu_titanate pinpoint mode rubber margarine BreastCancerCell C60H122 Bacterium Patterns Epoxy light_emission Reading Singapore Fe_film mfm_amplitude PhaseImaging Pinpoint PFM mono_layer Blend sputter Growth CalciumHydroxyapatite SrTiO3 SingleCrystal AM-KPFM HexagonalBoronNitride Optic Wonseok Strontium Sperm PetruPoni Gold KPFM Molybdenum