DNA Force-distance doped Polyurethane nanobar Singapore Magnetic Force Microscopy Aluminium_Oxide AIN Cross-section Ram TempControl Patterns CeNSE_IISc Piezoresponse Materials PolymerBlend Plug Reading Polarization fluorocarbon LMF Platinum Praseodymium INSPParis Inorganic Vacuum lithography PVA Electronics UnivCollegeLondon HanyangUniv CP-AFM Litho Chungnam_National_University