Chemical shift imaging of molecular transport in colloidal systems: Visualization and quantification of diffusion processes
(2007) In Journal of Colloid and Interface Science 308(2). p.542-550- Abstract
- Magnetic resonance imaging with chemical shift resolution is demonstrated to provide detailed information about molecular transport on the macroscopic scale in complex colloidal systems. The concentrations of species with distinct 1 H resonance lines can be quantified from spatially resolved, high-resolution, H-1 nuclear magnetic resonance spectra. The method is demonstrated by experiments on three systems with multiple simultaneous transport processes where the diffusion coefficients depend on position and/or on the concentration of other species: (1) release of poly(ethylene glycol) and imidazole from a hydrogel into an external reservoir of water, (2) migration of acetic acid and tetramethylammonium ions in a highly concentrated... (More)
- Magnetic resonance imaging with chemical shift resolution is demonstrated to provide detailed information about molecular transport on the macroscopic scale in complex colloidal systems. The concentrations of species with distinct 1 H resonance lines can be quantified from spatially resolved, high-resolution, H-1 nuclear magnetic resonance spectra. The method is demonstrated by experiments on three systems with multiple simultaneous transport processes where the diffusion coefficients depend on position and/or on the concentration of other species: (1) release of poly(ethylene glycol) and imidazole from a hydrogel into an external reservoir of water, (2) migration of acetic acid and tetramethylammonium ions in a highly concentrated water-in-oil emulsion with initially non-uniform concentration of solutes, and (3) release of tetramethylammonium ions loaded into a hydrogel triggered by the diffusion of methyl green into the gel matrix. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/670437
- author
- Salvati, Anna LU ; Lynch, Iseult LU ; Malmborg, Carin LU and Topgaard, Daniel LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- pure phase-encoding, CSI, MRI, NMR, controlled release
- in
- Journal of Colloid and Interface Science
- volume
- 308
- issue
- 2
- pages
- 542 - 550
- publisher
- Academic Press
- external identifiers
-
- wos:000244841500032
- scopus:33847283059
- ISSN
- 1095-7103
- DOI
- 10.1016/j.jcis.2006.11.035
- language
- English
- LU publication?
- yes
- id
- c3f2b612-c09c-4115-9863-466b52d43d78 (old id 670437)
- date added to LUP
- 2016-04-01 12:28:11
- date last changed
- 2025-01-02 19:01:40
@article{c3f2b612-c09c-4115-9863-466b52d43d78,
abstract = {{Magnetic resonance imaging with chemical shift resolution is demonstrated to provide detailed information about molecular transport on the macroscopic scale in complex colloidal systems. The concentrations of species with distinct 1 H resonance lines can be quantified from spatially resolved, high-resolution, H-1 nuclear magnetic resonance spectra. The method is demonstrated by experiments on three systems with multiple simultaneous transport processes where the diffusion coefficients depend on position and/or on the concentration of other species: (1) release of poly(ethylene glycol) and imidazole from a hydrogel into an external reservoir of water, (2) migration of acetic acid and tetramethylammonium ions in a highly concentrated water-in-oil emulsion with initially non-uniform concentration of solutes, and (3) release of tetramethylammonium ions loaded into a hydrogel triggered by the diffusion of methyl green into the gel matrix.}},
author = {{Salvati, Anna and Lynch, Iseult and Malmborg, Carin and Topgaard, Daniel}},
issn = {{1095-7103}},
keywords = {{pure phase-encoding; CSI; MRI; NMR; controlled release}},
language = {{eng}},
number = {{2}},
pages = {{542--550}},
publisher = {{Academic Press}},
series = {{Journal of Colloid and Interface Science}},
title = {{Chemical shift imaging of molecular transport in colloidal systems: Visualization and quantification of diffusion processes}},
url = {{http://dx.doi.org/10.1016/j.jcis.2006.11.035}},
doi = {{10.1016/j.jcis.2006.11.035}},
volume = {{308}},
year = {{2007}},
}