Vinylpyridine IVSpectroscopy FM-KPFM ChemicalCompound self-assembled_monolayer NUS_NNI_Nanocore PatternedSapphireSubstrat CHRYSALIS_INC OrganicCompound STM Cobalt-dopedIronOxide PinpointNanomechanicalMode HumanHair epitaxy ScanningThermalMicroscopy Piezoresponse Ucl semifluorinated_alkanes Adhesive Neodymium IRDetector AEAPDES Polyaniline FrictionalForce Ecoli Gallium ForceDistanceSpectroscopy C_AFM suspended_graphene Pinpoint Wang BCZT KevlarFiber Hair IIT-chennai