Hysteresys Bacteria India UnivMaryland Polyurethane Friction University_of_Regensburg polymeric_arrays Glass organic_polymer PrCurve Optoelectonics MfmPhase ForceDistanceSpectroscopy H-BN EvatecAG ThermalProperties molecule LifeScience contact SICM mfm_amplitude Ananth Nanostructure PetruPoni_Institute polyvinyl acetate Domain PpLdpe Chloroform Scanning_Thermal_Microscopy StrontiumTitanate small_scan Adhesion hydrocarbon NtuEee