FrictionalForceMicroscopy UTEM TPU Pores Lattice Sidewall strontiu_titanate Silicon Genetic 2-vinylpyridine Bacterium Ferroelectric Polydimethylsiloxane Lateral OpticalElement Cell Wafer Graphene ForceVolumeImage Styrene Nanofiber CalciumHydroxyapatite self-assembly solar_cell dichalcogenide IMT_Bucharest Au111 Electrical&Electronics AM_KPFM food Perovskite semifluorinated alkane Polystyrene Film Change