Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 15, Pages 4666-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511539
Keywords
hyperpolarization; liquid crystals; NMR spectroscopy; phase transitions; xenon
Categories
Funding
- U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division [DE-AC02-05CH11231]
- National Science Foundation Graduate Research Fellowship [DGE-1106400]
Ask authors/readers for more resources
Studies of hyperpolarized xenon-129 (hp-Xe-129) in media such as liquid crystals and cell suspensions are in demand for applications ranging from biomedical imaging to materials engineering but have been hindered by the inability to bubble Xe through the desired media as a result of viscosity or perturbations caused by bubbles. Herein a device is reported that can be reliably used to dissolve hp-Xe-129 into viscous aqueous and organic samples without bubbling. This method is robust, requires small sample volumes (<60L), is compatible with existing NMR hardware, and is made from readily available materials. Experiments show that Xe can be introduced into viscous and aligned media without disrupting molecular order. We detected dissolved xenon in an aqueous liquid crystal that is disrupted by the shear forces of bubbling, and we observed liquid-crystal phase transitions in (MBBA). This tool allows an entirely new class of samples to be investigated by hyperpolarized-gas NMR spectroscopy.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available