Document Detail


Controllable positioning and alignment of silver nanowires by tunable hydrodynamic focusing.
MedLine Citation:
PMID:  21317493     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Assembly and alignment of nanowires or nanotubes are critical steps for integrating functional nanodevices by the bottom-up strategy. However, it is still challenging to manipulate either an array of nanowires or individual nanowires in a controllable manner. Here we present a simple but versatile method of positioning and aligning nanowires by hydrodynamic focusing that functions as 'hydro-tweezers'. By adjusting the flow duration and flow rates of the sheath flows and sample flow, the density, width and position of the nanowire arrays, as building blocks of nanodevices, can be readily tuned in the hydrodynamic focusing process. This approach exhibits great potentials in the assembly of an array of functional nanodevices. With this method, multiple nanowire arrays can be positioned and aligned on predefined locations. Further focusing the sample flow, nanowires flow in single file. Thus single nanowires can also be lined up and located to desired positions.
Authors:
Mei Liu; Ying Chen; Qiuquan Guo; Ruying Li; Xueliang Sun; Jun Yang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-14
Journal Detail:
Title:  Nanotechnology     Volume:  22     ISSN:  1361-6528     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  125302     Citation Subset:  -    
Affiliation:
Department of Mechanical and Materials Engineering, University of Western Ontario, London, ON, N6A 5B9, Canada.
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