SrO Collagen Composition DiffractiveOpticalElements CalciumHydroxyapatite LightEmiting StrontiumTitanate ChemicalCompound Boron PECurve TipBiasMode vertical_PFM PDMS LateralPFM PVAP3HT Semiconductor FloppyDisk Optoelectonics Calcite block_copolymer fe_nd_b Chloroform ThinFilm Korea Trench Ecoli Strontium Pipette lithography Forevision WWafer LowDensityPolyethylene HighResolution Modulus PUR