PROBLEM TO BE SOLVED: To provide an external agent sustained release carrier having high biocompatibility, high water retention and high strength.SOLUTION: This invention relates to an external agent sustained release carrier using a silk fibroin porous material. The tensile strength of the porous material is 75-400 kPa.COPYRIGHT: (C)2012,JPO&INPIT【課題】生体親和性と保水性が高く、高強度の体外用薬剤徐放担体を提供する。【解決手段】シルクフィブロイン多孔質体を用いた体外用薬剤徐放担体である。【選択図】なし