FrictionForce Yeditepe PDMS Solar Melt Mechanical NiFe Sic IISCBangalore Polypropylene 2-vinylpyridine Topography LMF StrontiumTitanate Alloy Phase nanobar Electrode atomic_layer PinpointNanomechanicalMode Optoelectronic Tapping CntFilm FrictionalForce VortexCore MBE FFM food NUS_Physics Heat PVAP3HT Polyethylene LateralPFM BlockCopolymer LateralForce