ShenYang EFM Global_Comm GaN Celebration Scratch #Materials CVD Annealed PDMS PrCurve Cell DentalProsthesis SPMLabs CrAu TriGlycineSulphate Electrode PolyStylene SurfaceOxidation AEAPDES ForceMapping temp_control Ucl Granada HanyangUniv Tapping Morphology Crystal NeodymiumMagnets Strontium gallium_nitride Lateral_Force_Microscopy NUS FFM Polydimethylsiloxane