The present invention relates to a CT/MRI dual modality molecular imaging contrast agent and a method for manufacturing the same. In the present invention, the CT/MRI dual modality molecular imaging contrast agent comprises: an FePt nanoparticle an modification molecular bonding to a surface of the FePt nanoparticle to modify the FePt nanoparticle with a amino-group, a carboxyl-group, or a biotin, wherein the FePt nanoparticle is in a form of sphere, octapod, cuboctahedron, cube, or truncated cube, and the FePt nanoparticle is represented by the following formula (I):FexPt100-x (I)wherein, x is 30~60.本發明係有關於一種同時用於陰極射線電腦斷層攝影與核磁共振攝影之雙顯影劑及其製作方法,其中雙顯影劑係包括:一鐵鉑奈米粒子;一表面改質分子,係連結於該鐵鉑奈米粒子之表面,使鐵鉑奈米粒子之表面修飾有一胺基、一羧基、或一生物素;其中,鐵鉑奈米粒子係具有球狀結構、八足狀結構、立方八面體結構、立方體結構、或截角立方體結構,且該鐵鉑奈米粒子係如下式(I)所示:FexPt100-x (I)其中,x為30~60。100...鐵鉑奈米粒子101...胺基表面改質分子102...抗體
