The present disclosure is directed to an antimicrobial composite material, and more particularly to an antimicrobial composite material comprising particles having a metal or metal alloy core and a porous inorganic material shell, coatings including the antimicrobial composite material, and methods of making the same. In some embodiments, Cu-SiO2 core-shell particles are disclosed in which the Cu core provides antimicrobial activity and the porous SiO2 shell functions as a barrier for the Cu core, thus preventing the Cu core from being directly exposed to air or moisture.本揭示案係針對一種抗微生物複合材料,且更詳言之,本揭示案係針對一種抗微生物複合材料、塗層及製造該抗微生物複合材料及該等塗層之方法,該抗微生物複合材料包含具有金屬或金屬合金核及多孔無機材料殼之粒子,該等塗層包括抗微生物複合材料。在一些實施例中,揭示Cu-SiO2核殼粒子,其中Cu核提供抗微生物活性且多孔SiO2殼用作Cu核之障壁,從而防止Cu核直接曝露於空氣或濕氣。10‧‧‧內部部分11‧‧‧內表面12‧‧‧外部部分15‧‧‧外表面16‧‧‧粒子100‧‧‧實施例