Collagen MESA structure Holes Neodymium flakes Electrode Perovskite STM PFM PS_PVAC MagneticArray FrictionalForceMicroscopy CopperFoil bias_mode InorganicCompound StyreneBeads FastScan Wildtype Copolymer amplitude_modulation IISCBangalore Nickel food Sidewall DNAProtein MeltingPoint LaAlO3 Phenanthrene Typhimurium MetalCompound Austenite YszSubstrate temperature controller AFM FAPbI3 dielectric_trench