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Updated: Dec 15, 2025

Preparation of Extracellular Matrix Protein Fibers for Brillouin Spectroscopy
Published on: September 15, 2016
Low frequency vibrations observed on assemblies of vertical multiwall carbon nanotubes by Brillouin light scattering:
Ahmed Andalouci1, Yves Roussigné1, Samir Farhat1
1Université Sorbonne Paris Nord, LSPM, CNRS, UPR 3407, F-93430, Villetaneuse, France.
Abstract:
Assemblies of vertical multiwall carbon nanotubes, (VCNTs), have been synthesized by coupling dewetting of cobalt or nickel ultrathin layers and plasma enhanced chemical vapor deposition. Electronic microscopies revealed well defined micrometer length nanotubes with inner radius of 3-4 nm and outer radius of 8-9 nm. Similar structural qualities have been revealed by Raman measurements. Dynamic behaviour of these VCNTs assemblies have been studied by means of Brillouin light scattering technique. The measured inelastic light scattering from VCNTs is attributed to bending vibrations of the nanotubes. The observed frequencies on both assemblies, considered as dense effective media, are compatible with an effective Young modulus of 850 GPa.
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