FrictionalForceMicroscopy PolyvinylideneFluoride SKPM LiNbO3 Electrical&Electronics FuelCell Wonseok HanyangUniv NCM\ Current Temperature MultiferroicMaterials BreastCancerCell thermoplastic_elastomers IndiumTinOxide Typhimurium NanoLithography Wang DOE food Ucl MagneticArray Fujian ThinFilm temperature_control FM-KPFM BismuthFerrite Ptfe Hydroxyapatite Optoelectronic YszSubstrate CP-AFM AlkaneFilm Vacuum self_healing