Issue 8, 2013
From the journal:

RSC Advances

Simultaneous positioning and orientation of single nano-wires using flow control†

Pramod P. Mathai,*ab   Peter T. Carmichael,a   Benjamin A. Shapiroacd  and  J. Alexander Liddlea  

* Corresponding authors

a Center for Nanoscale Science and Technology (CNST), National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD, USA
E-mail: ppm@umd.edu

b Maryland Nanocenter, Kim Engineering Building, University of Maryland (UMD), College Park, MD, USA

c Fischell Department of Bioengineering, UMD, College Park, MD, USA

d The Institute for Systems Research, UMD, College Park, MD, USA

Abstract

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 μm × 170 μm region with on-demand trapping, translation, and simultaneous rotation of dielectric, semiconducting, and metallic NWs. An average trapping precision of 0.6 μm in position and 5.4° in orientation is achieved for the NWs considered, making it attractive for sensing and directed assembly applications.

Graphical abstract: Simultaneous positioning and orientation of single nano-wires using flow control

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Article information

DOI
https://doi.org/10.1039/C2RA23190E
Article type
Paper
Submitted
05 Dec 2012
Accepted
11 Dec 2012
First published
13 Dec 2012

RSC Adv., 2013,3, 2677-2682

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Simultaneous positioning and orientation of single nano-wires using flow control

P. P. Mathai, P. T. Carmichael, B. A. Shapiro and J. A. Liddle, RSC Adv., 2013, 3, 2677 DOI: 10.1039/C2RA23190E

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