Copper Implant Typhimurium rubber PiezoelectricForceMicroscopy TappingMode MonoLayer non_contact Solution ScanningKelvinProbeMicroscopy Bismuth Leakage PolymerPatterns SrTiO3 SKKU Worcester_Polytechnic_Institute HexagonalBN Protein PhthalocyaninePraseodymium Graphene Nanotechnology Transparent Pinpoint PFM Pattern kelvin probe force microscopy Tin sulfide Sio2 AAO aluminum_nitride Ceramics Glass PDMS IMT_Bucharest MolecularSelfAssembly AEAPDES