SICM Materials self_healing DiffractiveOpticalElements NUSNNI FM_KPFM SiliconOxide Foil plastics Tungsten_disulfide AAO alkanes GaP PpLdpe Korea BiVO4 Scratch Bacterium SPMLabs Yttria_stabilized_Zirconia Electronics TransitionMetal mono_layer CaMnO3 Steps Sapphire gallium_nitride Chloroform thermal_property semifluorinated alkane Vortex PMNPT Fluoride Cobalt-dopedIronOxide organic_polymer