PROBLEM TO BE SOLVED: To provide an antibacterial article which can exhibit excellent antibacterial properties without using antibacterial material.SOLUTION: An antibacterial article has a fine projection structure on its surface in which a plurality of fine projections are disposed in close contact with each other, average dAVG of distances d between adjacent fine projections is 30 nm-90 nm, and average aspect ratio (HAVG/dAVG) of the fine projections defined by the ratio between average HAVG of heights H of the fine projections and average dAVG of distances d between the fine projections is 3.0-6.25.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】抗菌性物質を用いずに、優れた抗菌性を発揮することができる抗菌性物品を提供する。【解決手段】複数の微小突起が密接して配置され、隣接する前記微小突起間の距離dの平均dAVGが30nm~90nmであり、前記微小突起の高さHの平均HAVGと、前記微小突起間の距離dの平均dAVGとの比で規定される前記微小突起の平均アスペクト比(HAVG/dAVG)が3.0~6.25である微小突起構造体を表面に有することを特徴とする、抗菌性物品。【選択図】図1