Local Young's moduli of as-grown and annealed diphenylalanine nanotubes

abstract

Precise measurements of local transversal Young's moduli of as-grown and annealed nanotubes of diphenylalanine have been performed by mechanical nanoindentation. Evaporation of water from the nanochannels leads to pronounced reduction of the values' dispersion, and the characteristic value coincides with previous theoretical estimations. The experimental value of longitudinal Young's modulus measured at polar surface of vertically aligned bundle of nanotubes is reported for the first time.

keywords

ASSEMBLED PEPTIDE NANOTUBES; MICROTUBES

subject category

Materials Science; Microscopy

authors

Zelenovskiy, PS; Yuzhakov, VV; Vasilev, SG; Kholkin, AL; Shur, VY

our authors

acknowledgements

The research was carried out using equipment of UCSU "Modern Nanotechnologies" UrFU with the financial support by the grant of the President of the Russian Federation for young scientists (Contract 14.Y30.17.2294-MK) and the Government of the Russian Federation (Resolution 211, Contract 02.A03.21.0006).

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