Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Fluid self-diffusion in Scots pine sapwood tracheid cells.

Espen H Johannessen1, Eddy W Hansen, Jarl B Rosenholm

  • 1Graduate School of Materials Research, Department of Physical Chemistry, Abo Akademi University, Porthansgatan 3-5, FI-20500 Turku, Finland. espen@vistacell.com

The Journal of Physical Chemistry. B
|February 14, 2006
PubMed
Summary

Pulsed field gradient nuclear magnetic resonance (PFG-NMR) measured water and toluene diffusion in Scots pine sapwood. Results reveal cell wall restrictions on liquid diffusion, aiding in understanding wood

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Packing in multimodal crystals and particle assemblies as models for dynamic packing during spontaneous and enforced particle movement: Settling, viscosity and elasticity.

Advances in colloid and interface science·2024
Same author

Sizing and packing of particles - Characterization of mono-, di- and trimodal particle assemblies.

Advances in colloid and interface science·2023
Same author

Characterization of molecule clustering and liquid transport at nearly ideal solid surfaces.

Advances in colloid and interface science·2022
Same author

Quantitative evaluation of key properties of dry and wet metal oxides and metal hydroxides as well as of their potential determining cations in aqueous solutions.

Advances in colloid and interface science·2022
Same author

A rational approach to basic equilibrium thermodynamics.

Advances in colloid and interface science·2021
Same author

Critical evaluation of models for self-assembly of short and medium chain-length surfactants in aqueous solutions.

Advances in colloid and interface science·2020

Area of Science:

  • Wood Science
  • Materials Science
  • Physical Chemistry

Background:

  • Understanding liquid diffusion within wood structures is crucial for material processing and performance.
  • Wood's porous cellular structure significantly influences molecular transport phenomena.
  • Scots pine sapwood presents a complex geometry for studying confined diffusion.

Purpose of the Study:

  • To measure self-diffusion coefficients of water and toluene in Scots pine sapwood.
  • To investigate the impact of cellular confinement on liquid diffusion dynamics.
  • To elucidate wood's cellular structure using diffusion principles.

Main Methods:

  • Low-field pulsed field gradient nuclear magnetic resonance (PFG-NMR) was employed.
  • One-dimensional diffusion measurements were conducted radially, orthogonal to tracheid cell walls.

Related Experiment Videos

  • Diffusion times ranged from milliseconds to seconds, analyzing echo attenuation curves.

    • Main Results:

    • Observed self-diffusion coefficients exhibited an asymptotic decay with increasing diffusion time.
    • This decay was attributed to the restrictive effects of cell walls on confined diffusion.
    • Simulations and mathematical models of diffusion in confined geometries were used for comparison.

    Conclusions:

    • The study successfully quantified water and toluene diffusion in Scots pine sapwood.
    • Cell wall confinement significantly impacts molecular diffusion, providing insights into wood's microstructure.
    • PFG-NMR combined with diffusion modeling offers a powerful approach to characterize porous wood structures.