50nm Carboxyl (carboxyl-PEG3000-SH) Gold NanoUrchins OPTIONAL:No Validation Kit 40E+11 (when dissolved to a

40E+11 (when dissolved to a final volume of 1ml)

No activation or manipulation of the gold nanoparticles is required prior to conjugation

Longitudinal peak wavelength: 700nm

Composition: Carboxyl gold nanoparticles

50nm Carboxyl (carboxyl-PEG3000-SH) Gold NanoUrchins OPTIONAL:No Validation Kit 40E+11 (when dissolved to aComposition: Carboxyl (carboxyl PEG thiol, 3kDa) Gold NanoUrchins Core Size: 50nm Absorption max: 560nm 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 NanoUrchins with carboxyl functional groups are made using a unique proprietary protocol resulting in particles with superior size distribution and shape compared to the