50nm Carboxyl (carboxyl-PEG3000-SH) Gold Nanoparticles Size:1ML 36E+09 <12% 1

36E+09 <12% 1

90nm standard gold nanoparticles (100ml

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 5 515-520 5

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 15 520 1

50nm NHS-Activated Gold NanoUrchins (lyophilized) - 1 vial

50nm Carboxyl (carboxyl-PEG3000-SH) Gold Nanoparticles Size:1ML 36E+09 <12% 1Composition: Carboxyl gold nanoparticles Core Size: 50nm Absorption max: 535nm Optical Density (OD): 50 Particles per ml: 1. 76E+12 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