Phase-change material filled hollow magnetic nanoparticles for cancer therapy and dual modal bioimaging
Literature Information
Jinghua Li, Yan Hu, Yanhua Hou, Xinkun Shen, Gaoqiang Xu, Liangliang Dai, Jun Zhou, Yun Liu, Kaiyong Cai
To develop carriers for anti-cancer drug delivery, this study reports a biocompatible and thermal responsive controlled drug delivery system based on hollow magnetic nanoparticles (HMNPs). The system is constructed simply by filling the hollow interiors of HMNPs with a phase-change material (PCM), namely, 1-tetradecanol, which has a melting point of 38 °C. The system achieves near “zero release” of both hydrophobic paclitaxel (PTX) and hydrophilic doxorubicin hydrochloride (DOX) and precise “on” or “off” drug delivery in vitro to efficiently induce cell apoptosis. Furthermore, the system displays both infrared thermal imaging and magnetic resonance imaging properties. More importantly, the system demonstrates great potential for thermo-chemo combination cancer therapy in vivo when an alternating magnetic field is applied.
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