FrictionalForceMicroscopy HydroGel SPMLabs TriGlycineSulphate WPlug Inorganic_Compound phase_change IISCBangalore Nanostructure Sperm Wildtype SrO Mechanical&nanotechnology chemical_compound block_copolymer Self-assembledMonolayer Protein Optoelectronic Plug Sapphire Polyethylene SThM AM_SKPM CHRYSALIS_INC Magnetostrictive DOE contact GlassTemp CntFilm food Boundary pulsed_laser_deposition OxideLayer YszSubstrate CrossSection