20nm Biotin Silver Nanoparticles Size:1ML 2E+13 (when dissolved to a

2E+13 (when dissolved to a final volume of 100ul)

50nm Maleimide-Activated Gold NanoUrchins (lyophilized) - 10 vials

40nm NHS-Activated Gold Nanoparticles (lyophilized) - 3 vials

Surface Composition: Citrate

Surface functionality: Maleimide (~1 Maleimide group/nm2) (10kDa PEG-spacer between gold surface and Maleimide-group)

20nm Biotin Silver Nanoparticles Size:1ML 2E+13 (when dissolved to aSilver 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