Director orientations in lyotropic liquid crystals: diffusion MRI mapping of the Saupe order tensor.
(2016) In Physical chemistry chemical physics : PCCP 18(12). p.8545-8553- Abstract
- The macroscopic physical properties of a liquid crystalline material depend on both the properties of the individual crystallites and the details of their spatial arrangement. We propose a diffusion MRI method to estimate the director orientations of a lyotropic liquid crystal as a spatially resolved field of Saupe order tensors. The method relies on varying the shape of the diffusion-encoding tensor to disentangle the effects of voxel-scale director orientational order and the local diffusion anisotropy of the solvent. Proof-of-concept experiments are performed on water in lamellar and reverse hexagonal liquid crystalline systems with intricate patterns of director orientations.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8856072
- author
- Topgaard, Daniel LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical chemistry chemical physics : PCCP
- volume
- 18
- issue
- 12
- pages
- 8545 - 8553
- publisher
- Royal Society of Chemistry
- external identifiers
-
- pmid:26948308
- scopus:84961815198
- wos:000372249100025
- pmid:26948308
- ISSN
- 1463-9084
- DOI
- 10.1039/c5cp07251d
- language
- English
- LU publication?
- yes
- id
- 45e2eaa9-406e-4157-b7b6-46fbae986f5e (old id 8856072)
- date added to LUP
- 2016-04-01 12:54:11
- date last changed
- 2022-04-06 01:27:30
@article{45e2eaa9-406e-4157-b7b6-46fbae986f5e,
abstract = {{The macroscopic physical properties of a liquid crystalline material depend on both the properties of the individual crystallites and the details of their spatial arrangement. We propose a diffusion MRI method to estimate the director orientations of a lyotropic liquid crystal as a spatially resolved field of Saupe order tensors. The method relies on varying the shape of the diffusion-encoding tensor to disentangle the effects of voxel-scale director orientational order and the local diffusion anisotropy of the solvent. Proof-of-concept experiments are performed on water in lamellar and reverse hexagonal liquid crystalline systems with intricate patterns of director orientations.}},
author = {{Topgaard, Daniel}},
issn = {{1463-9084}},
language = {{eng}},
number = {{12}},
pages = {{8545--8553}},
publisher = {{Royal Society of Chemistry}},
series = {{Physical chemistry chemical physics : PCCP}},
title = {{Director orientations in lyotropic liquid crystals: diffusion MRI mapping of the Saupe order tensor.}},
url = {{http://dx.doi.org/10.1039/c5cp07251d}},
doi = {{10.1039/c5cp07251d}},
volume = {{18}},
year = {{2016}},
}