80nm Biotin Gold NanoUrchins Size:0.5ML 18E-12 * All concentrations as

18E-12 * All concentrations as indicated at an optical density of 0

80nm NHS-Activated Gold NanoUrchins (lyophilized) - 3 vials

(mg/ml)* Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 400 1

60nm NHS-Activated Gold NanoUrchins (lyophilized) - 10 vials

80nm Biotin Gold NanoUrchins Size:0.5ML 18E-12 * All concentrations asComposition: Biotin Gold NanoUrchins Core Size: 80nm Absorption max: 620nm Optical density (OD): 50 Particles per ml: 3. 91E+11 Biotin Surface Density: ~0. 5 nm2 Formulation: Supplied in USP grade purified water Properties Cytodiagnostics Biotin Gold NanoUrchins are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to the leading competitor. These gold nanourchins have a narrow size