lift_mode Vacuum organic_polymer ULCA MolybdenumDisulfide Monisha AIN piezoelectric force microscopy Ecoli fluoroalkane Litho Hafnium_dioxide Scratch Force-distance Temasek_Lab Iron DNA Piezoresponse IRDetector pulsed_laser_deposition PhaseTransition NTU semifluorinated_alkanes Polydimethylsiloxane RedBloodCell YszSubstrate Wildtype Current Beads medical SKKU Typhimurium hydrocarbon ConductiveAFM Pattern