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 pr...
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Veröffentlicht in: | Nature nanotechnology 2006-12, Vol.1 (3), p.195-200 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Controlling the spatial organization of objects at the nanoscale is a key challenge in enabling their technological application
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. Biomolecular assemblies are attractive nanostructures owing to their biocompatibility, straightforward chemical modifiability, inherent molecular recognition properties and their availability for bottom-up fabrication
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. Aromatic peptide nanotubes are self-assembled nanostructures with unique physical and chemical stability and remarkable mechanical rigidity
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. Their application in the fabrication of metallic nanowires and in the improvement of the sensitivity of electrochemical biosensors have already been demonstrated
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. 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. |
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ISSN: | 1748-3387 1748-3395 |
DOI: | 10.1038/nnano.2006.139 |