fluoroalkane Workfunction FM-KPFM fluoroaalkane FAFailureAnlaysis tip_bias_mode LaAlO3 Insulator Biology YszSubstrate Bacteria LiftMode Cancer ElectroChemical NUS_Physics oxide_layer organic_polymer Permalloy Hafnia ring shape STM PVAC FailureAnalysis Indium_tin_oxide TyphimuriumBiofilm MoirePattern PANI Bacterium Mechanical&nanotechnology Switching Optoelectronic Memory Molybdenum_disulfide Calcium Boundary