20nm Carboxyl (carboxyl-PEG5000-SH) Gold Nanoparticles OPTIONAL:No Validation Kit Longitudinal peak wavelength: 770nm

Longitudinal peak wavelength: 770nm

Surface functionality: Maleimide (~ 1 Maleimide group/nm2) (10kDa PEG-spacer between gold surface and Maleimide-group)

60nm NHS-Activated Gold NanoUrchins (lyophilized) - 3 vials

30nm Maleimide-Activated Gold Nanoparticles (lyophilized) - 3 vials

30nm Maleimide-Activated Gold Nanoparticles (lyophilized) - 10 vials

20nm Carboxyl (carboxyl-PEG5000-SH) Gold Nanoparticles OPTIONAL:No Validation Kit Longitudinal peak wavelength: 770nmComposition: Carboxyl gold nanoparticles Core Size: 20nm Absorption max: 524nm Optical Density (OD): 50 Particles per ml: 3. 27E+13 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