FrictionalForce Magnets TiO2 BloodCell Mechanical&nanotechnology EFMAmplitude biocompatible OxideLayer kelvin probe force microscopy Indium_tin_oxide Forevision Crystal pinpoint mode Ram Ucl Electrical&Electronics Molybdenum_disulfide Microchannel Tape Collagen Au111 Roughness Change Tungsten chemical_compound Pzt HardDiskMedia NtuEee StyreneBeads Leakage Wildtype LaAlO3 Dr.JurekSadowski Stiffness temperature_control