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

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 flu...

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Published in:Proceedings of the National Academy of Sciences - PNAS 2009-08, Vol.106 (34), p.14219-14223
Main Authors: Fakhri, Nikta, Tsyboulski, Dmitri A, Cognet, Laurent, Weisman, R. Bruce, Pasquali, Matteo
Format: Article
Language:English
Subjects:
Algorithms
Bending
Biological Sciences
Brownian motion
Carbon
Carbon - chemistry
Carbon nanotubes
Computer Simulation
Coordinate systems
Fluids
Fluorescence
Kinetics
Liquids
Mechanical Phenomena
Microscopy, Fluorescence
Models, Chemical
Nanostructures
Nanotechnology
Nanotechnology - methods
Nanotubes
Nanotubes, Carbon - chemistry
Physical Sciences
Polymers
Relaxation time
Rheology
Stiffness
Viscosity
Water - chemistry
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container_title Proceedings of the National Academy of Sciences - PNAS
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creator Fakhri, Nikta
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description 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.
doi_str_mv 10.1073/pnas.0904148106
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source JSTOR Archival Journals and Primary Sources Collection; PubMed Central
subjects Algorithms
Bending
Biological Sciences
Brownian motion
Carbon
Carbon - chemistry
Carbon nanotubes
Computer Simulation
Coordinate systems
Fluids
Fluorescence
Kinetics
Liquids
Mechanical Phenomena
Microscopy, Fluorescence
Models, Chemical
Nanostructures
Nanotechnology
Nanotechnology - methods
Nanotubes
Nanotubes, Carbon - chemistry
Physical Sciences
Polymers
Relaxation time
Rheology
Stiffness
Viscosity
Water - chemistry
title Diameter-dependent bending dynamics of single-walled carbon nanotubes in liquids
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