Functionalization of colloidal nanoparticles with a discrete number of ligands based on a “HALO-bioclick” reaction
2020
A recombinant HALO-GFP fusion protein was designed and isolated to demonstrate the feasibility of controlling the number and orientation of protein ligands to be conjugated on colloidal gold nanoparticles. AuNPs functionalized with exactly one or exactly two GFP molecules exhibited fully preserved functionality of the protein. The method is very straightforward and general providing highly bioactive nanoparticle-protein conjugates.
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