光热治疗
普鲁士蓝
材料科学
体内
药物输送
阿霉素
磁共振成像
纳米颗粒
纳米技术
光热效应
生物医学工程
生物物理学
核磁共振
化疗
化学
医学
物理
生物技术
外科
物理化学
电极
放射科
电化学
生物
作者
Jinghua Li,Feng-Shou Zhang,Zhigang Hu,Weidong Song,Guangda Li,Gaofeng Liang,Jun Zhou,Ké Li,Yang Cao,Zhong Luo,Kaiyong Cai
标识
DOI:10.1002/adhm.201700005
摘要
The study reports a biocompatible smart drug delivery system based on a doxorubicin (DOX) blending phase‐change material of 1‐pentadecanol loaded hollow magnetic Prussian blue nanoparticles, resulting in HMNP‐PB@Pent@DOX. The system possesses concentration‐dependent high thermogenesis (>50 °C) when applying a near‐infrared (NIR) laser irradiation only for 5 min. Furthermore, the system realizes near “zero release” of drug and is efficiently triggered by NIR for drug delivery in an “on” and “off” manner, thus inducing cell apoptosis in vitro and in vivo. Moreover, the system clearly indicates tumor site with trimodal imaging of magnetic resonance imaging, photoacoustic tomography imaging, and infrared thermal imaging. Furthermore, the system achieves efficient chemo‐photothermal combined tumor therapy in vivo with 808 nm laser irradiation for 5 min at 1.2 W cm −2 , revealing the good tumor inhibition effect comparing with those of chemotherapy or photothermal therapy alone. The system is also confirmed to be biocompatible in regard to the mortality rate.
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