Simultaneous positioning and orientation of single nano-wires using flow control
Simultaneous positioning and orientation of single nano-wires using flow control
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DOI：
10.1039/c2ra23190e
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发表时间：
2013-01-01
期刊：
影响因子：
3.9
通讯作者：
Liddle, J. Alexander
中科院分区：
文献类型：
--
作者：
Mathai, Pramod P.;Carmichael, Peter T.;Liddle, J. Alexander
我们提出了一种材料属性独立的方法来操纵纳米线（NW）的位置和方向，通过反馈控制流量。例如，NW不需要是电磁可极化的。在微流体装置中的纳米线的控制被证明在一个170 μ m-6 - 170 μ m的区域与按需捕获，平移，并同时旋转的电介质，半导体和金属纳米线。平均捕获精度为0.6 μ m的位置和5.4度的方向被认为是实现的纳米线，使其有吸引力的传感和定向组装应用。
We present a material-property independent method for manipulating both the position and orientation of nanowires (NWs), by feedback control of flows. For example, the NWs need not be electromagnetically polarizable. Control of NWs in a microfluidic device is demonstrated across a 170 mu m 6 170 mu m region with on-demand trapping, translation, and simultaneous rotation of dielectric, semiconducting, and metallic NWs. An average trapping precision of 0.6 mu m in position and 5.4 degrees in orientation is achieved for the NWs considered, making it attractive for sensing and directed assembly applications.