Transport dynamics of superparamagnetic microbeads trapped by mobile magnetic domain walls
Transport dynamics of superparamagnetic microbeads trapped by mobile magnetic domain walls
复制标题
移动磁畴壁捕获的超顺磁性微珠的传输动力学
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
G. Beach
中科院分区：
文献类型：
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作者：
Elizabeth Rapoport;G. Beach
采用数值模拟和解析计算相结合的方法，研究了亚微米铁磁径迹中超顺磁性微珠通过场驱动畴壁（DW s）输运的动力学行为，并对不同径迹几何形状和微珠尺寸下的DW s相互作用强度进行了计算.从这些结果预测的最大DW连续珠运输速度，并示出实验测量的支持。通过适当的材料选择或现场应用的最大速度的增强被证明，并提出了统计变化的来源的分析。最后，珠-DW相互作用和珠运输的最大DW速度以上的连续DW介导的珠运输的动力学特征。
The dynamics of fluid-borne superparamagnetic bead transport by field-driven domain walls (DWs) in submicrometerferromagnetictracksisstudiedexperimentallytogetherwithnumericalandanalyticalmodeling.A combination of micromagnetic modeling and numerical calculation is used to determine the strength of bead-DW interaction for a range of track geometries and bead sizes. The maximum DW velocity for continuous bead transport is predicted from these results and shown to be supported by experimental measurements. Enhancement of the maximum velocity by appropriate material selection or field application is demonstrated, and an analysis of the source of statistical variation is presented. Finally, the dynamics of bead-DW interaction and bead transport above the maximum DW velocity for continuous DW-mediated bead transport is characterized.
影响因子：
6.1
作者：
Issadore D;Shao H;Chung J;Newton A;Pittet M;Weissleder R;Lee H
通讯作者：
Lee H
影响因子：
8.6
作者：
Chen,A;Vieira,G;Henighan,T;Howdyshell,M;North,JA;Hauser,AJ;Yang,FY;Poirier,MG;Jayaprakash,C;Sooryakumar,R
通讯作者：
Sooryakumar,R