cannabidiol EFM C36H74 Regensburg FrictionalForceMicroscopy Alkane align Hair India LeakageCurrent Melt Korea SmalScan Collagen SKKU Wildtype Graphene Potential NCM PolyStylene epitaxy Sapphire Self-assembledMonolayer AM_SKPM aluminum_nitride Bacteria Bismuth Global_Comm lift_mode HanyangUniv ElectroChemical Phenanthrene MBE PDMS Sulfur