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Investigations of vesicle gels by pulsed and modulated gradient NMR diffusion techniques

Lasic, Samo LU ; Åslund, Ingrid LU ; Oppel, Claudia; Topgaard, Daniel LU ; Söderman, Olle LU and Gradzielski, Michael (2011) In Soft Matter 7(8). p.3947-3955
Abstract
Vesicle gels are surfactant systems that form stiff gels with rather low amounts of surfactant. So far their structures have mostly been investigated using scattering techniques, which are generally appropriate for the study of structures on the nm-length-scale. Here we examine these gels using two complementary diffusion NMR techniques, which are both sensitive to structures on the mu m-scale. The presented results imply structural features on the mm-scale, indicating a more complex structure than just that of densely packed small vesicles, as previously found for these systems. It is demonstrated that a combination of the diffusion NMR methods, described here, can provide useful insights, when morphological features extend over a wide... (More)
Vesicle gels are surfactant systems that form stiff gels with rather low amounts of surfactant. So far their structures have mostly been investigated using scattering techniques, which are generally appropriate for the study of structures on the nm-length-scale. Here we examine these gels using two complementary diffusion NMR techniques, which are both sensitive to structures on the mu m-scale. The presented results imply structural features on the mm-scale, indicating a more complex structure than just that of densely packed small vesicles, as previously found for these systems. It is demonstrated that a combination of the diffusion NMR methods, described here, can provide useful insights, when morphological features extend over a wide range of length scales. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Soft Matter
volume
7
issue
8
pages
3947 - 3955
publisher
Royal Society of Chemistry
external identifiers
  • wos:000289173500039
  • scopus:79953734908
ISSN
1744-6848
DOI
10.1039/c0sm01278e
language
English
LU publication?
yes
id
8550086d-b8da-4ff3-a11f-167e542eefdc (old id 1918236)
date added to LUP
2011-05-13 16:01:09
date last changed
2017-01-01 06:00:37
@article{8550086d-b8da-4ff3-a11f-167e542eefdc,
  abstract     = {Vesicle gels are surfactant systems that form stiff gels with rather low amounts of surfactant. So far their structures have mostly been investigated using scattering techniques, which are generally appropriate for the study of structures on the nm-length-scale. Here we examine these gels using two complementary diffusion NMR techniques, which are both sensitive to structures on the mu m-scale. The presented results imply structural features on the mm-scale, indicating a more complex structure than just that of densely packed small vesicles, as previously found for these systems. It is demonstrated that a combination of the diffusion NMR methods, described here, can provide useful insights, when morphological features extend over a wide range of length scales.},
  author       = {Lasic, Samo and Åslund, Ingrid and Oppel, Claudia and Topgaard, Daniel and Söderman, Olle and Gradzielski, Michael},
  issn         = {1744-6848},
  language     = {eng},
  number       = {8},
  pages        = {3947--3955},
  publisher    = {Royal Society of Chemistry},
  series       = {Soft Matter},
  title        = {Investigations of vesicle gels by pulsed and modulated gradient NMR diffusion techniques},
  url          = {http://dx.doi.org/10.1039/c0sm01278e},
  volume       = {7},
  year         = {2011},
}