15nm Reactant Free Gold Nanoparticles Size:20ml 68E+10 (when dissolved to a

68E+10 (when dissolved to a final volume of 100ul)

(mg/ml)* Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 250 7

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 90 630

98E-10 * All concentrations as indicated at an optical density of 1 (OD=1

Side-scatter histogram of 150nm size reference gold nanoparticles

15nm Reactant Free Gold Nanoparticles Size:20ml 68E+10 (when dissolved to a5Composition: Citric acid stabilized Gold Colloid Core Size: 15nm Absorption max: 522nm Particles per ml: 1. 64E+12 Purity: >99% reactant free Formulation: Supplied in 0. 1mM phosphate buffered saline (PBS) Intended use: Our extensively purified reactant free gold nanoparticles are ideal for sensitive applications requiring a minimum amount of contaminating reactants remnant from the manufacturing process. This product is well suited for conjugate