普鲁士蓝
乙二醇
吸附
纳米颗粒
铯
生物相容性
水溶液
磁性纳米粒子
材料科学
核化学
化学
化学工程
无机化学
纳米技术
有机化学
电化学
电极
物理化学
工程类
作者
Jun Qian,Jia‐Ying Xu,Liangju Kuang,Daoben Hua
标识
DOI:10.1002/cplu.201700183
摘要
Abstract The current oral administration of drugs for cesium (Cs) decorporation treatment are often subject to side effects and low efficiency. Therefore, it is of great significance, yet challenging, to develop novel materials and techniques for efficient removal of Cs from the human body. We report herein a new method for directly removing cesium from blood by poly(ethylene glycol)‐decorated Prussian blue magnetic nanoparticles (PEG‐PB MNs). The nanoparticles have been successfully synthesized by one‐pot hydrothermal reaction. The adsorption of cesium in aqueous solution is a highly selective process and kinetically follows a pseudo‐second‐order model, which can reach equilibrium with a large capacity of 274.7 mg Cs g −1 within one hour at 298.15 K. PEG‐PB MNs were also efficiently regenerated and reused with high adsorption efficiency after five cycles. The nanoparticles successfully removed cesium ions from human blood with improved biocompatibility. The removal efficiency achieved 64 % in the blood with an initial Cs concentration of 168.4 ppb. This study provides a new approach to directly remove cesium ions from the human body by utilizing biocompatible Prussian blue magnetic nanoparticles.
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