Non-ContactMode Jason SurfaceChange Alkane Copolymer optoelectronics Cross-section DeoxyribonucleicAcid Platinum Thermoplastic_polyurethane Mechanical&nanotechnology food GaN SThM CuParticle cannabidiol UnivOfMaryland MetalCompound LiquidCell Metal OpticalModulator Mechanical Hexylthiophene hetero_structure PVAC Topography Patterns aluminum_nitride Piezoresponse PhaseImaging PANI Roughness Chloroform Polyurethane DLaTGS