ChemicalCompound Polydimethylsiloxane Sapphire Materials Aggregated_molecules Protein NusEce StainlessSteel HOPG mechanical_property Sio2 CancerCell AAO GlassTemp Chrome Au111 HexagonalBN Granada HumanHair SiliconeOxide Conductivity Ptfe AM-KPFM CaMnO3 DIWafer Spain AM_KPFM Nanotechnology electrospinning Piezoresponse RedBloodCell ConductiveAFM Insulator vertical_PFM EPFL