Biofilm HACrystal Croatia FastScan ConductingPolymer F14H20 GaAs non_contact OpticalElement multi_layer AM-KPFM bias_mode Phthalocyanine doped SKPM Change fe_nd_b DNA HDD Permalloy BariumTitanate SPMLabs membrane HexagonalBoronNitride Scratch CalciumHydroxyapatite FM-KPFM ElectrostaticForceMicroscopy thermal_property SrO SolarCell Patterns food Polyvinylidene PrCurve