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On the origin of the great rigidity of self-assembled diphenylalanine nanotubes
The elastic properties of the nanotubes of self-assembled aromatic dipeptide diphenylalanine are investigated by means of Raman spectroscopy and a mass-in-mass 1D model. Analysis of nanotubes' lattice vibrations reveals the essential contribution of the water in the nanochannel core of the tube...
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Published in: | Physical chemistry chemical physics : PCCP 2016-11, Vol.18 (43), p.29681-29685 |
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creator | Zelenovskiy, Pavel Kornev, Igor Vasilev, Semen Kholkin, Andrei |
description | The elastic properties of the nanotubes of self-assembled aromatic dipeptide diphenylalanine are investigated by means of Raman spectroscopy and a mass-in-mass 1D model. Analysis of nanotubes' lattice vibrations reveals the essential contribution of the water in the nanochannel core of the tubes to the Young's modulus and high water mobility along the channel. Direct measurements of the Young's modulus performed by nanoindentation confirm the obtained results.
The great rigidity of self-assembled diphenylalanine nanotubes is due to the hydrogen bonds existing between monomers and water in the nanochannel. |
doi_str_mv | 10.1039/c6cp04337b |
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subjects | Channels Condensed Matter Materials Science Modulus of elasticity Nanoindentation Nanostructure Nanotubes Origins Physical chemistry Physics Tubes |
title | On the origin of the great rigidity of self-assembled diphenylalanine nanotubes |
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