20nm Methylated (methoxy-PEG2000-SH) Silver Nanoparticles

Silver nanoparticle core size: 20nm (+/- 3nm) Size dispersity: CV <18% Surface composition: methoxy-PEG2000-SH Absorption max: 398-410nm Concentration: 1mg/ml  Optical Density (OD): 125 Particles per ml: ~2.3E+13 Formulation: Supplied in USP grade purified water Properties The protective inert PEGylated layer of Cytodiagnostics methylated silver nanoparticles make them ideal for use in applications that requires stringent control of non-specific protein binding to the nanoparticle surface.  Storage Store product away from light at 4°C. Do NOT freeze.  When stored as specified the product is stable for at least three months.    Product Data Diameter  Peak SPR Wavelength (nm) NPS/ml* Wt. Conc. (mg/ml)* Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 20 390-410 4.6E+11 2.00E-02 <15% 4.19E+03 1.26E+03 0.3 4.39E-17 2.65E+07 7.64E-10 * All concentrations as indicated at an optical