70nm Carboxyl (carboxyl-PEG5000-SH) Gold Nanoparticles Water Soluble Iron Oxide Nanoparticles Illustration of the appearance of

Illustration of the appearance of the Miriad™ cartridge after applying a gold conjugate (conjugated to an antibody against the antigen of interest) when target is present (left) and not present in the sample (right)

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 60 585 1

100nm NHS-Activated Gold NanoUrchins (lyophilized) - 1 vial

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

Absorption max: 548nm

70nm Carboxyl (carboxyl-PEG5000-SH) Gold Nanoparticles Water Soluble Iron Oxide Nanoparticles Illustration of the appearance ofComposition: Carboxyl gold nanoparticles Core Size: 70nm Absorption max: 548nm Optical Density (OD): 50 Particles per ml: 6. 00E+11 Carboxyl Surface Density: ~1 nm2 Formulation: Supplied in USP grade purified water Properties Cytodiagnostics PEGylated Gold Nanoparticles with carboxyl functional groups are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to the leading competitor and are