biocompatible PolyvinylideneFluoride CaMnO3 Polydimethylsiloxane AM_KPFM MolecularSelfAssembly LiquidImaging amplitude_modulation organic_polymer self-assembled_monolayer HighAspect Sio2 PDMS DNAProtein Bmp ScanningKelvinProbeMicroscopy INSP Typhimurium Solution Al2O3 Pzt domain_switching ThermalDetectors GranadaUniv Switching cannabidiol Composite piezoelectric force microscopy Scanning_Thermal_Microscopy Chromium cannabis AtomicLayer tip_bias_mode Vacuum Temperature