A Novel Magnetic Hydrogel with Aligned Magnetic Colloidal Assemblies Showing Controllable Enhancement of Magnetothermal Effect in the Presence of Alternating Magnetic Field
A Novel Magnetic Hydrogel with Aligned Magnetic Colloidal Assemblies Showing Controllable Enhancement of Magnetothermal Effect in the Presence of Alternating Magnetic Field
复制标题
一种具有对齐磁性胶体组件的新型磁性水凝胶，在交变磁场存在下显示出磁热效应的可控增强
DOI：
10.1002/adma.201405757
复制
发表时间：
2015-04-17
影响因子：
29.4
通讯作者：
Gu, Ning
中科院分区：
文献类型：
--
作者：
Hu, Ke;Sun, Jianfei;Gu, Ning
在凝胶化过程中，磁性纳米材料通过磁场定向组装形成了一种新型的磁性水凝胶。该新型磁性水凝胶在交变磁场中具有方向依赖性的产热作用。当加热速率为6-8倍时，沿组件沿着方向的比吸收速率值可为垂直于组件方向的比吸收速率值的2.1倍。由于各向异性的产热作用，新型磁性水凝胶还显示出药物的方向依赖性释放，在两个方向之间具有3.4倍的差异。
A novel magnetic hydrogel is formed via the field-directed assembly of magnetic nanomaterials during the gelation process. The novel magnetic hydrogel exhibits direction-dependent thermogenesis in an alternating magnetic field. The specific absorption rate value in the direction along the assemblies can be 2.1-fold as much as that in the direction normal to the assemblies while the heating rate is 6-8-fold. Due to the anisotropic thermogenesis, the novel magnetic hydrogel also shows a direction-dependent release of drugs that has a 3.4-fold difference between the two directions.