Abstract:
The present disclosure relates to a method of printing multi-nanoparticles using evaporation dynamics and surface energy control, and more particularly, to a multi-image contrast agent composition and a method of preparing the same. A method of printing multi-nanoparticles includes: a step S1 of forming a pattern on a surface of a substrate by irradiating ultraviolet rays to a portion of the surface through a photomask; a step S2 of coating the substrate with a solution containing nanoparticles; and a step S3 of lowering surface energy of the coated nanoparticles. According to the present disclosure, a substrate on which nanoparticles with a uniform surface are non-destructively printed may be provided and the substrate may be used as a material for an optical device.