TappingMode SurfaceChange GaN 2d_materials SingleCrystal Hexacontane rubber norganic Mechanical&nanotechnology CancerCell MESA structure CastIron Growing ito_film Friction strontiu_titanate Gallium_Arsenide molecules Ferrite MLCC Polystyrene Ferroelectric Polypropylene Microchannel blended polymers WWafer Current electrospinning Optoelectronic LateralPFM SolarCell HfO2 HexagonalBN small_scan Heating