TyphimuriumBiofilm biocompatible Composition Singapore Au111 HydroGel GaN Polarization TPU Styrene Materials silicon_oxide self-assembly small_scan LiBattery YttriaStabilizedZirconia bias_mode Piezoelectric BoronNitride non_contact polymeric_arrays CP-AFM LiquidCell BFO HfO2 cannabinoid Hafnia nanobar epitaxy KPFM DNA Gallium_Arsenide SAM Film Pore