60nm Carboxylated (carboxyl-PEG3000-SH) Silver Nanoparticles Size:0.5ML Composition: Citrate stabilized gold colloid

Composition: Citrate stabilized gold colloid

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

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 40 530 7

5 maleimide groups/nm2) (5kDa PEG-spacer between gold surface and maleimide-group)

Conjugated protein: Holo-Transferrin (from human serum)

60nm Carboxylated (carboxyl-PEG3000-SH) Silver Nanoparticles Size:0.5ML Composition: Citrate stabilized gold colloidSilver nanoparticle core size: 60nm (+ 3nm) Size dispersity: CV <15% Surface composition: carboxyl PEG3000 SH methoxy PEG2000 SH Carboxyl surface density: 1 nm2 Absorption max: 425 440nm Concentration: 1mg ml Optical Density (OD): 100 Particles per ml: ~8. 5E+11 Formulation: Supplied in USP grade purified water Properties The carboxyl functionalized silver nanoparticle surface allows for covalent conjugation of antibodies, proteins and other ligands