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Literature DB >> 19706503

Diameter-dependent bending dynamics of single-walled carbon nanotubes in liquids.

Nikta Fakhri¹, Dmitri A Tsyboulski, Laurent Cognet, R Bruce Weisman, Matteo Pasquali.

Abstract

By relating nanotechnology to soft condensed matter, understanding the mechanics and dynamics of single-walled carbon nanotubes (SWCNTs) in fluids is crucial for both fundamental and applied science. Here, we study the Brownian bending dynamics of individual chirality-assigned SWCNTs in water by fluorescence microscopy. The bending stiffness scales as the cube of the nanotube diameter and the shape relaxation times agree with the semiflexible chain model. This suggests that SWCNTs may be the archetypal semiflexible filaments, highly suited to act as nanoprobes in complex fluids or biological systems.

Entities: Chemical

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Year: 2009 PMID： 19706503 PMCID： PMC2732870 DOI： 10.1073/pnas.0904148106

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

21 in total

Diameter-dependent bending dynamics of single-walled carbon nanotubes in liquids.

1. Ring closure of carbon nanotubes.

2. Structure-assigned optical spectra of single-walled carbon nanotubes.

3. A bending mode analysis for growing microtubules: evidence for a velocity-dependent rigidity.

4. Versatile visualization of individual single-walled carbon nanotubes with near-infrared fluorescence microscopy.

5. Bending dynamics of fluctuating biopolymers probed by automated high-resolution filament tracking.

6. Translational and rotational dynamics of individual single-walled carbon nanotubes in aqueous suspension.

7. Measurement of the persistence length of polymerized actin using fluorescence microscopy.

8. Viscoelasticity of dilute solutions of semiflexible polymers.

9. Carbon nanotubes--the route toward applications.

10. Self-organized nanotube serpentines.

1. Competing mechanisms and scaling laws for carbon nanotube scission by ultrasonication.

2. Optical detection of nanometric thermal fluctuations to measure the stiffness of rigid superparamagnetic microrods.

3. Fluctuation broadening in carbon nanotube resonators.

4. Fluorescent quantification of size and lamellarity of membrane nanotubes.

Review 5. Emergent complexity of the cytoskeleton: from single filaments to tissue.

6. Controlling electrical percolation in multicomponent carbon nanotube dispersions.

Review 7. Chiral Liquid Crystalline Properties of Cellulose Nanocrystals: Fundamentals and Applications.

Review 8. Fluorescent Single-Walled Carbon Nanotubes for Protein Detection.

9. Enhanced charge separation in TiO₂/nanocarbon hybrid photocatalysts through coupling with short carbon nanotubes.

10. Lipid nanotechnology.