FrictionalForceMicroscopy Calcite hydrocarbon TipBiasMode FloppyDisk Implant BloodCell Hydroxyapatite Bacteria Graphene conductive oxide_layer domain_switching MechanicalProperties Typhimurium CalciumHydroxyapatite ShenYang suspended_graphene Pvdf blended polymers SrO Sulfur 2d_materials Phase Annealing NiFe 2dMaterials Inorganic Carbon Magnets UnivMaryland LithiumNiobate Nanopattern Melt mono_layer