The grafting and release behavior of doxorubincin from Fe<sub>3</sub>O<sub>4</sub><i>@</i>SiO<sub>2</sub>core–shell structure nanoparticles via an acid cleaving amide bond: the potential for magnetic targeting drug deliveryF H Chen, Jian Ni, Qian Gao|Nanotechnology|2008Cited by 172