Nano Archive

Controlled patterning of aligned self-assembled peptide nanotubes

Reches, Meital and Gazit, Ehud (2006) Controlled patterning of aligned self-assembled peptide nanotubes. NATURE NANOTECHNOLOGY, 1 (3). pp. 195-200.

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Controlling the spatial organization of objects at the nanoscale is a key challenge in enabling their technological application(1-3). Biomolecular assemblies are attractive nanostructures owing to their biocompatibility, straightforward chemical modifiability, inherent molecular recognition properties and their availability for bottom-up fabrication(4-16). Aromatic peptide nanotubes are self-assembled nanostructures with unique physical and chemical stability and remarkable mechanical rigidity(14-16). Their application in the fabrication of metallic nanowires and in the improvement of the sensitivity of electrochemical biosensors have already been demonstrated(14-17). 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.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nanoelectronics
ID Code:1655
Deposited By:Mark Morrison
Deposited On:08 Jan 2009 13:04
Last Modified:17 Feb 2009 09:48

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