| abstract |
The present invention provides an anticancer drug comprising a plurality of porous silica particles having an anticancer active peptide incorporated therein, wherein a plurality of nitrogen-containing groups are located on an outer surface of each porous silica particle, and folic acid is bound to at least some of the nitrogen-containing groups, whereby the anticancer drug has an excellent target delivery ability, is of high stability without forming a precipitate in an in-vivo environment, and is applicable to various carcinomas. |