abstract |
The present invention comprises the steps of neutralizing an acid base by adding a base to a dopamine-H + X - containing aqueous solution, where H + X - is an acid; And dopamine, while the oxidation in air, but form a melanin to the step of polymerization (polymerization) simultaneously or successively, the base is added during the dopamine ยท H + X - and the molar ratio of (a) with a base (b) a: b = It provides a method for producing melanin particles, and nano-size melanin particles, characterized in that 1: 1: adjusted to 0.1 to 1 to form a nano-sized melanin particles. The preparation method according to the present invention can produce nano-sized melanin particles in a short time. In addition, nano-sized melanin particles prepared according to the present invention is excellent in dispersibility in a solvent, unlike natural melanin or conventional synthetic melanin can be applied to various fields. |