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      A novel magnetic hydrogel with aligned magnetic colloidal assemblies showing controllable enhancement of magnetothermal effect in the presence of alternating magnetic field.

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          Abstract

          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.

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          Author and article information

          Journal
          Adv. Mater. Weinheim
          Advanced materials (Deerfield Beach, Fla.)
          Wiley-Blackwell
          1521-4095
          0935-9648
          Apr 17 2015
          : 27
          : 15
          Affiliations
          [1 ] Department of Biologicl Science and Medical Engneering, Jiangsu Labortory for Biomaterials and Devices, State Key Laboratory of BioElectronics, Southeast University, Nanjing, 210096, China.
          Article
          10.1002/adma.201405757
          25753892

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