DomainSwitching PolyimideFilm LiquidCell Collagen PinPointMode VerticalPFM medical Sidewall LMF AdhesionEnergy Floppy PVAP3HT CancerCell ForceMapping FrictionalForceMicroscopy Silicon IcelandSpar Trench MembraneFilter Butterfly PS_LDPE PetruPoni_Institute CopperFoil heterojunctions LiquidImaging TriGlycineSulphate AAO UnivMaryland Fujian ULCA EFMAmplitude Nanotechnology aluminum_nitride Mechanical&nanotechnology Platinum