MULTICOLOR-ENCODED COLLOIDAL PARTICLES COATED WITH METAL NANOPARTICLES MIXTURE HAVING COLORS IN THE VISIBLE REGION AND METHOD FOR PREPARING THE SAME

摘要

The present invention relates to multicolor colloidal particles coated with a metal nanoparticle mixture having colors in the visible region and a method for preparing the same. In particular, relates to a metal nanoparticle mixture in which two or more nanoparticles selected from the group consisting of metal nanoparticles exhibiting red color; metal nanoparticles exhibiting yellow color; and metal nanoparticles exhibiting blue color, are mixed in various compositional ratio, multicolor colloidal particles in which polymer or mineral colloidal particles are coated with the metal nanoparticle mixture, and a method for preparing the same. According to the present invention, all colors that are in the visible region can be developed by suitably mixing metal nanoparticles exhibiting three colors, and multicolor colloidal particles can be prepared by coating polymer or mineral colloidal particles with a metal nanoparticle mixture exhibiting various colors.