20nm Biotin Silver Nanoparticles

Silver nanoparticle core size: 20nm (+/- 3nm) Size dispersity: CV <18% Surface composition: Biotin-PEG5000-SH/methoxy-PEG-SH Biotin surface density: 0.5/nm2 Absorption max: 398-410nm Concentration: 1 mg/ml  Optical Density (OD): 125 Particles per ml: ~2.3E+13 Formulation: Supplied in USP grade purified water Properties The precisely engineered silver nanoparticle surface with extended biotin groups maximizes streptavidin binding by minimizing steric hindrance while still maintaining low non-specific protein binding.  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