Department of Biologicl Science and Medical Engneering, Jiangsu Labortory for Biomaterials and Devices, State Key Laboratory of BioElectronics, Southeast University, Nanjing, 210096, China.
Adv Mater. 2015 Apr 17;27(15):2507-14. doi: 10.1002/adma.201405757. Epub 2015 Mar 9.
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.
一种新型的磁性水凝胶是通过在凝胶化过程中磁场引导磁性纳米材料的组装形成的。新型磁性水凝胶在交变磁场中表现出各向异性的热生成。在组装方向上的比吸收率值可以是垂直于组装方向上的 2.1 倍，而加热速率是 6-8 倍。由于各向异性的热生成，新型磁性水凝胶还表现出药物的各向异性释放，两个方向之间的差异有 3.4 倍。
