Issue 8, 2011
From the journal:

Nanoscale

Striped nanowires and nanorods from mixed SAMS†

Chetana Singh,a   Ying Hu,b   Bishnu P. Khanal,c   Eugene R. Zubarev,c   Francesco Stellaccib  and  Sharon C. Glotzer*ad  

* Corresponding authors

a Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA
E-mail: sglotzer@umich.edu

b Department of Materials Science and Engineering, MIT, Cambridge, Massachusetts, USA

c Bioscience Research Collaborative and Department of Chemistry, Rice University, Houston, Texas, USA

d Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan, USA

Abstract

We investigate the use of mixed self-assembled monolayers (SAMs) for creating nanoscale striped patterns on nanowires and nanorods. Our simulations predict that SAMs comprised of an equal composition of length-mismatched, thermodynamically incompatible surfactants adsorbed on nanowire surfaces self-organize into equilibrium stripes of alternating composition always perpendicular, rather than parallel, to the nanowire axis. We support the simulation results with preliminary experimental investigations of gold nanorods coated with binary mixtures of ligand molecules, which show stripes roughly perpendicular to the rod axis in all cases.

Graphical abstract: Striped nanowires and nanorods from mixed SAMS

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Article information

DOI
https://doi.org/10.1039/C1NR10215J
Article type
Paper
Submitted
26 Feb 2011
Accepted
13 May 2011
First published
16 Jun 2011

Nanoscale, 2011,3, 3244-3250

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Striped nanowires and nanorods from mixed SAMS

C. Singh, Y. Hu, B. P. Khanal, E. R. Zubarev, F. Stellacci and S. C. Glotzer, Nanoscale, 2011, 3, 3244 DOI: 10.1039/C1NR10215J

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