Casting Metal Nanowires within Discrete Self-Assembled Peptide Nanotubes

Tubular nanostructures are suggested to have a wide range of applications in nanotechnology. We report our observation of the self-assembly of a very short peptide, the Alzheimer's β-amyloid diphenylalanine structural motif, into discrete and stiff nanotubes. Reduction of ionic silver within th...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2003-04, Vol.300 (5619), p.625-627
Hauptverfasser: Reches, Meital, Gazit, Ehud
Format: Artikel
Sprache:eng
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Zusammenfassung:Tubular nanostructures are suggested to have a wide range of applications in nanotechnology. We report our observation of the self-assembly of a very short peptide, the Alzheimer's β-amyloid diphenylalanine structural motif, into discrete and stiff nanotubes. Reduction of ionic silver within the nanotubes, followed by enzymatic degradation of the peptide backbone, resulted in the production of discrete nanowires with a long persistence length. The same dipeptide building block, made of D-phenylalanine, resulted in the production of enzymatically stable nanotubes.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1082387