To prepare a high quality (immuno)gold conjugate gold nano particles with uniform size and highly adsorptive surface should be used. A narrow size distribution minimizes variation in your immuno assay and warrants low background levels.
Aurion Diagnostics Gold Nanoparticles are prepared according to unique production protocols based on the reduction with citrate. This provides for gold nanoparticles with the same quality as our gold nanoparticles for research applications.
Aurion gold nanoparticles for Diagnostics are available in diameters 20nm and 40nm.
The coefficient of variance is <12%. They are available as a citrate stabilized gold sol for conjugation via adsorption as well as pre-functionalized with carboxyl end-groups for covalent conjugation via sulfo-NHS/EDC chemistry.
Inquire about (bulk)volumes, lead time and pricing here