CPC A61K 8/0241 (2013.01) [A61K 8/64 (2013.01); A61K 8/65 (2013.01); A61K 8/73 (2013.01); A61K 8/735 (2013.01); A61K 8/81 (2013.01); A61K 8/88 (2013.01); A61K 9/10 (2013.01); A61K 31/728 (2013.01); A61K 38/02 (2013.01); A61P 17/00 (2018.01); A61P 43/00 (2018.01); A61Q 19/00 (2013.01)] | 3 Claims |
1. A composite particle, consisting of: anionic polymers; and a cationic polymer (except for chitosan) having a degree of cationization of 0.2 or more,
the anionic polymers consist of hyaluronan, salt of hyaluronan, or combination thereof,
the cationic polymer is one of diallyldimethylamine hydrochloride polymer, allylamine hydrochloride polymer, diallylamine hydrochloride polymer, methyl diallylamine hydrochloride polymer, acrylamide-diallyldimethylamine hydrochloride copolymer, arginine/lysine oligopeptide, polylysine, and protamine,
an average particle diameter of the composite particle is 100 nm to 500 nm, and
a mass ratio of the anionic polymers to the cationic polymer in the composite particle is 10:1 to 1:10.
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