30nm Methylated (methoxy-PEG2000-SH) Gold Nanoparticles Carboxyl Gold Nanoparticles (M-1cm-1) Size Dispersity (+/-nm) Particle

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 50 560 3

(M-1cm-1) Size Dispersity (+/-nm) Particle Volume (nm3) Surface Area (nm2) Surface/Volume Ratio Particle Mass (g) Molar Mass (g/mol) Molar Concentration* 20 524 6

Amine Surface Density: ~0

56E+10 (when dissolved to a final volume of 1 ml)

30nm Methylated (methoxy-PEG2000-SH) Gold Nanoparticles Carboxyl Gold Nanoparticles (M-1cm-1) Size Dispersity (+/-nm) ParticleComposition: Methyl (methoxy PEG2000 SH) gold nanoparticles Core Size: 30nm Absorption max: 526nm Optical Density (OD): 50 Particles per ml: 8. 96E+12 Formulation: Supplied in USP grade purified water Properties Cytodiagnostics Methyl (methoxy) Gold Nanoparticles are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to the leading competitor. These non protein binding methylated gold