PDMS Fujian Iron ring shape DiffractiveOpticalElements Polystyrene LateralForceMicroscopy Reduction IcelandSpar MLCC Polyimide molecule ForceVolumeImage PUR fluoroalkane Dimethicone SrTiO3 Barium_titanate Aggregated_molecules IVSpectroscopy BismuthVanadate Mechanical&nanotechnology PFM nanomechanical Tape Ceramics Fet medical Force-distance FloppyDisk Phenanthrene self-assembled_monolayer Vacuum Nanostructure DeoxyribonucleicAcid