Color pigment nanotechnology

A pigment comprising polymetallic nanofillers, wherein the polymetallic nanofillers are produced using a method comprising:

• providing a solution for each of one or more desired constituent elements of a desired polymetallic nanofiller;
• mixing the solutions containing each of the constituent elements of the desired polymetallic nanofiller to form a mix of solutions;
• preparing polymetallic nanofillers from the mix of solutions in a thermal plasma process;
• mixing the polymetallic nanofillers in a liquid matrix;
• and
• wherein the polymetallic nanofillers have a domain size less than 100 nanometers.

A pigment composition comprising:

• inorganic multimetallic nanofillers with domain size less than 50 nanometers,
• wherein the nanofillers have been surface modified;
• and
• wherein the nanofillers exhibit a transparency to light that differs by more than 20% as compared with the transparency to light exhibited by fillers of similar composition with powders having a domain size of at least one micron