Versatile protein-based bifunctional nano-systems (encapsulation and directed assembly): Selective nanoscale positioning of gold nanoparticle-viral protein hybrids

► We managed to encapsulate gold nanoparticles using recombinant bifunctional protein. ► We managed to position protein-encapsulated gold nanoparticles on desired substrate. ► We managed to position one single gold nanoparticle on desired nano-site.