We describe a method of synthesizing biocompatible 10-nm gold nanoparticles, functionalized by coating poly-ethylene glycol onto the surface. These particles can be used in vitro and in vivo for delivering therapeutics to nanoscale cellular and extracellular spaces that are difficult to access with conventional nanoparticle sizes.
Cheng, M. J., Prabakaran, P., Kumar, R., Sridhar, S., Ebong, E. E. Synthesis of Functionalized 10-nm Polymer-coated Gold Particles for Endothelium Targeting and Drug Delivery. J. Vis. Exp. (131), e56760, doi:10.3791/56760 (2018).