High efficiency surface ligand exchange methodology for high throughput production of purified dispersion colloidal metal oxides

Abstract

The disclosure describes a method of removing and/or replacing an organic ligand from a surface of metal oxide nanoparticles. The method involves mixing a sample of metal oxide nanoparticles comprising an organic ligand in a liquid comprising an organic phase and an aqueous phase, the aqueous phase comprising at least one stripping agent, wherein mixing occurs under conditions to cause the stripping agent to interact with the surface of the metal oxide nanoparticles; removing the aqueous phase from the organic phase following mixing; and optionally, drying the aqueous phase removed from the organic phase.

Dependencies are inferred from the claim text.