▎ 摘　　要

NOVELTY - Composition comprises a first component and a second component, where the first component comprises at least one of nanodiamonds, carbon black particles, carbon nanotube, fullerene, graphene, graphene oxide, graphite, sulfur, styrenic polymers, poly(meth)acrylates, polyacrylamides, unsaturated polyolefins, polynorbornene derivatives, polyanilines, polyphenols, polyimines, or polyimides, the second component comprises at least one of titanium dioxide, zinc oxide, organotitanium networks, boron oxide, aluminum oxide, silicon dioxide, or silsesquioxane and the first component and the second component form particles of a core-shell structure, and the first component is a core and the second component is a shell. USE - The composition is useful in cosmetic or sunscreen preparation (claimed) to absorb or scatter UV light and simultaneously scavenge free radicals, holes, electrons, or reactive oxygen species. ADVANTAGE - The composition utilizes structure that enables the application of particles of appropriate sizes that do not pass through the human skin corneum, provides practically non-expensive of manufacturing preparation, eliminates the uncomfortable sandy feeling of diamond particles when applied to human skin, requires fewer reapplications over longer periods of time, provides better coloring to the preparation for application to human skin and prevents fast oxidation of nanodiamonds. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (a) preparing particles of a core-shell structure, comprising dispersing nanodiamonds in an organic solvent, adding a shell precursor, resulting in a reaction mixture and heating the reaction mixture, resulting in core-shell particles, until the core-shell particles reach a size; and (b) a cosmetic or sunscreen preparation comprising particles of a core-shell structure, where a first component is a core and a second component is a shell, and the first component comprises nanodiamonds, and the second component comprises titanium dioxide or zinc oxide.