SAM Korea Phthalocyanine FrictionalForce Cobalt-dopedIronOxide LateralPFM F14H20 Beads Inorganic_Compound OrganicCompound MonoLayer Water Bismuth University_of_Regensburg CeNSE_IISc Reduction NTU OpticalWaveguides Piezoresponse CrossSection plastic Vortex single_layer Ceramic Magnetic MetalCompound SurfaceOxidation NusEce Stiffness LateralForceMicroscopy 2d_materials Metal Composition Hydroxyapatite AEAPDES