Self-assembled peptide nanotubes are uniquely rigid bioinspired supramolecular structures

Nitzan Kol, Lihi Adler-Abramovich, David Barlam, Roni Z. Shneck, Ehud Gazit, Itay Rousso

Research output: Contribution to journalArticlepeer-review

338 Scopus citations

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 -19 GPa, as calculated by finite element analysis. This high value places these peptide nanotubes among the stiftest biological materials presently known, making them attractive building blocks for the design and assembly of biocompatible nanodevices.

Original languageEnglish
Pages (from-to)1343-1346
Number of pages4
JournalNano Letters
Volume5
Issue number7
DOIs
StatePublished - 1 Jul 2005

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry (all)
  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanical Engineering

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