Implant HOPG STM PetruPoni_Institute temperature_control NTU Collagen Anneal BreastCancerCell Phosphide HDD polymeric_arrays Silver Vacuum FrictionalForce chemical_compound nanobar NusEce light_emitting atomic_layer Moire BismuthFerrite ElectrostaticForceMicroscopy IndiumTinOxide Kevlar Polystyrene FM_SKPM HumanHair ElectroDeposition CrystalGrowing Galfenol kelvin probe force microscopy Ferrite CarbonNanotube MfmPhase