NMR Relaxation of Water in Nanostructures: Analysis of Ferromagnetic Cobalt-Ferrite Polyelectrolyte Nanocomposites
NMR Relaxation of Water in Nanostructures: Analysis of Ferromagnetic Cobalt-Ferrite Polyelectrolyte Nanocomposites
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DOI：
10.1002/cphc.201000853
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发表时间：
2011-03-14
期刊：
影响因子：
2.9
通讯作者：
Gun'ko, Yurii K.
中科院分区：
文献类型：
--
作者：
Davies, Gemma-Louise;Corr, Serena A.;Gun'ko, Yurii K.
聚电解质稳定的钴铁氧体磁性液体在低场下表现出高的弛豫值。磁悬浮液是由排列成胶束状结构的致密金属氧化物纳米复合材料组成的，这表明弛豫度与流体力学直径之间呈负相关(见图)。它们可以使用外部磁铁对准成线性阵列。
Polyelectrolyte-stabilised cobalt ferrite magnetic fluids demonstrate high relaxivity values at low fields. The magnetic suspensions are composed of compact metal oxide nanocomposites arranged in micelle-like structures which demonstrate an inverse correlation between relaxivity and hydrodynamic diameter (see graph). They can be aligned into linear arrays using an external magnet.