80nm Biotin Silver NanoparticlesSilver nanoparticle core size: 80nm (+ 3nm) Size dispersity: CV <15% Surface composition: Biotin PEG5000 SH methoxy PEG SH Biotin surface density: 0. 5 nm2 Absorption max: 445 465nm Concentration: 1 mg ml Optical Density (OD): 80 Particles per ml: ~3. 5E+11 Formulation: Supplied in USP grade purified water Properties The precisely engineered silver nanoparticle surface with extended biotin groups maximizes streptavidin binding by minimizing steric