(57)< Abstract > At the same time as for this invention being effective, it is something which offers the organism absorptive material which offers the anti-bacterial effect which is continued, has anti-bacterial characteristic coating or the powder body. Concretely, as for this invention, it is something which offers the organism absorptive material which includes the organism absorptive base substance which the anti-bacterial characteristic metal of 1 or more where to the crystalline form which features sufficient atomic abnormality it is connects, the particular material when alcohol or it contacts the water electrolyte, although it plays the anti-bacterial effect, at least the atom of one anti-bacterial characteristic metal, discharges the ion, the molecule or the cluster at sufficient density. When the anti-bacterial characteristic metal of these 1 or more does not produce effect on body fluids absorption of the organism absorptive material, in addition, after the disappearing of the particular material measures in 24 hours, the particle which is larger than 2 millimicrons is not left.本発明は有効で且つ持続する抗菌効果を提供する、抗菌性被覆又は粉体を備えた生体吸収性材料を提供するものである。具体的には、本発明は、十分な原子異常を特徴とする結晶形態にある1以上の抗菌性金属が結合した生体吸収性基体を含む生体吸収性材料を提供するものであり、当該材料はアルコール又は水性電解液に接触すると抗菌効果を奏するのに十分な濃度で少なくとも1つの抗菌性金属の原子、イオン、分子又はクラスターを放出する。この1以上の抗菌性金属は生体吸収性材料の体液吸収に影響を与えず、また、当該材料の消失後24時間に測定すると、2μmより大きい粒子を残さない。