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Controlled patterning of aligned self-assembled peptide nanotubes

Controlled patterning of aligned self-assembled peptide nanotubes Controlling the spatial organization of objects at the nanoscale is a key challenge in enabling their technological application 1,2,3 . Biomolecular assemblies are attractive nanostructures owing to their biocompatibility, straightforward chemical modifiability, inherent molecular recognition properties and their availability for bottom-up fabrication 4,5,6,7,8,9,10,11,12,13,14,15,16 . Aromatic peptide nanotubes are self-assembled nanostructures with unique physical and chemical stability and remarkable mechanical rigidity 14,15,16 . Their application in the fabrication of metallic nanowires and in the improvement of the sensitivity of electrochemical biosensors have already been demonstrated 14,15,16,17 . Here we show the formation of a vertically aligned nanoforest by axial unidirectional growth of a dense array of these peptide tubes. We also achieved horizontal alignment of the tubes through noncovalent coating of the tubes with a ferrofluid and the application of an external magnetic field. Taken together, our results demonstrate the ability to form a two-dimensional dense array of nanotube assemblies with either vertical or horizontal patterns. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Nanotechnology Springer Journals

Controlled patterning of aligned self-assembled peptide nanotubes

Reches, Meital; Gazit, Ehud
Nature Nanotechnology , Volume 1 (3) – Dec 5, 2006
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References (31)

Publisher
Springer Journals
Copyright
Copyright © 2006 by Nature Publishing Group
Subject
Materials Science; Materials Science, general; Nanotechnology; Nanotechnology and Microengineering
ISSN
1748-3387
eISSN
1748-3395
DOI
10.1038/nnano.2006.139
Publisher site
See Article on Publisher Site

Abstract

Controlling the spatial organization of objects at the nanoscale is a key challenge in enabling their technological application 1,2,3 . Biomolecular assemblies are attractive nanostructures owing to their biocompatibility, straightforward chemical modifiability, inherent molecular recognition properties and their availability for bottom-up fabrication 4,5,6,7,8,9,10,11,12,13,14,15,16 . Aromatic peptide nanotubes are self-assembled nanostructures with unique physical and chemical stability and remarkable mechanical rigidity 14,15,16 . Their application in the fabrication of metallic nanowires and in the improvement of the sensitivity of electrochemical biosensors have already been demonstrated 14,15,16,17 . Here we show the formation of a vertically aligned nanoforest by axial unidirectional growth of a dense array of these peptide tubes. We also achieved horizontal alignment of the tubes through noncovalent coating of the tubes with a ferrofluid and the application of an external magnetic field. Taken together, our results demonstrate the ability to form a two-dimensional dense array of nanotube assemblies with either vertical or horizontal patterns.

Journal

Nature Nanotechnology – Springer Journals

Published: Dec 5, 2006

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