Self-assembled peptide nanotubes are uniquely rigid bioinspired supramolecular structures

Nitzan Kol; L Adler-Abramovich; D Barlam; RZ Shneck; E Gazit; Itay Rousso

doi:10.1021/nl0505896

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Self-assembled peptide nanotubes are uniquely rigid bioinspired supramolecular structures

Journal article

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Self-assembled peptide nanotubes are uniquely rigid bioinspired supramolecular structures

Nitzan Kol, L Adler-Abramovich, D Barlam, RZ Shneck, E Gazit and Itay Rousso

Nano Letters, Vol.5(7), pp.1343-1346

Jul/2005

DOI: https://doi.org/10.1021/nl0505896

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Abstract

We recently presented a novel class of self-assembled diphenylalanine-based peptide nanotubes. Here, for the first time, we present their mechanical properties, which we directly measured through indentation type experiments using atomic force microscopy. We find that the averaged point stiffness of the nanotubes is 160 N/m, and that they have a correspondingly high Young's modulus of similar to 19 GPa, as calculated by finite element analysis. This high value places these peptide nanotubes among the stiffest biological materials presently known, making them attractive building blocks for the design and assembly of biocompatible nanodevices.

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Title: Self-assembled peptide nanotubes are uniquely rigid bioinspired supramolecular structures
Creators: Nitzan Kol (null) - 972WIS_INST___9
L Adler-Abramovich (null)
D Barlam (null)
RZ Shneck (null)
E Gazit (null)
Itay Rousso (null) - 972WIS_INST___9
Resource Type: Journal article
Publication Details: Nano Letters, Vol.5(7), pp.1343-1346; Jul/2005
Number of pages: 4
Language: English
DOI: https://doi.org/10.1021/nl0505896
Record Identifier: 993265151803596

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