Title:
NANO-SIZED MELANIN PARTICLES AND METHOD OF PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/049406
Kind Code:
A9
Abstract:
The present invention provides nano-sized particles of melanin, and the method for formation of the melanin particles comprises the following steps: adding a base to a dopamine ・H+X - containing solution (where H+X - is an acid) and allowing an acid-base neutralization reaction; and forming nano-sized particles of melanin by controlling the addition of nucleic dopamine ・H+X - (a) to base (b) at a ratio of a : b = 1 : 0.1 ~ 1, and allow concurrent or consecutive formation of melanin by oxidation curing of the dopamine in air (polymerization). The manufacturing method according to the present invention can produce nano-sized melanin particles in a short period of time. Furthermore, the nano-sized melanin particles made according to the present invention are distinctive from conventional solvents containing dispersions of natural melanin and synthetic melanin, and have excellent application in various fields.
Inventors:
LEE JIN KYU (KR)
JU KUK YOUN (KR)
JU KUK YOUN (KR)
Application Number:
PCT/KR2010/007288
Publication Date:
November 10, 2011
Filing Date:
October 22, 2010
Export Citation:
Assignee:
SNU R&DB FOUNDATION (KR)
LEE JIN KYU (KR)
JU KUK YOUN (KR)
LEE JIN KYU (KR)
JU KUK YOUN (KR)
International Classes:
C08J3/12; C08H1/06
Attorney, Agent or Firm:
CHO, Woo Je et al. (Kukdong Building 60-1,Chungmuro3-ka, Chung-ku, Seoul 100-705, KR)
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