@article {390,
	title = {Gas flow MRI using circulating laser-polarized Xe-129},
	journal = {Journal of Magnetic Resonance},
	volume = {138},
	year = {1999},
	note = {J Magn Reson196HXTimes Cited:35Cited References Count:15},
	month = {May},
	pages = {155-159},
	abstract = {<p>We describe an experimental approach that combines multidimensional NMR experiments with a steadily renewed source of laser-polarized Xe-129. Using a continuous flow system to circulate the gas mixture, gas phase NMR signals of laser-polarized Xe-129 can be observed with an enhancement of three to four orders of magnitude compared to the equilibrium Xe-129 NMR signal. Due to the fact that the gas flow recovers the nonequilibrium Xe-129 nuclear spin polarization in 0.2 to 4 s, signal accumulation on the time scale of seconds is feasible, allowing previously inaccessible phase cycling and signal manipulation. Several possible applications of MRI of laser-polarized Xe-129 under continuous flow conditions are presented here. The spin density images of capillary tubes demonstrate the feasibility of imaging under continuous how. Dynamic displacement profiles, measured by a pulsed gradient spin echo experiment, show entry flow properties of the gas passing through a constriction under laminar flow conditions. Further, dynamic displacement profiles of Xe-129, flowing through polyurethane foams with different densities and pore sizes, are presented. (C) 1999 Academic Press.</p>
},
	keywords = {xenon},
	isbn = {1090-7807},
	doi = {Doi 10.1006/Jmre.1998.1675},
	url = {<Go to ISI>://WOS:000080303900021},
	author = {Brunner, E. and Haake, M. and Kaiser, L. and Pines, A. and Reimer, J. A.}
}
@book {385,
	title = {Proc. of the Int. School of Physics, Enrico Fermi Course CXXXIX - Magnetic Resonance and Brain Funtion: Approaches from Physics},
	series = {NMR and MRI of Laser-Polarized Noble Gases in Molecules},
	year = {1999},
	publisher = {IOS Press},
	organization = {IOS Press},
	chapter = {211-226},
	author = {Goodson, B.M. and Kaiser, L. and Pines, A.}
}
@article {384,
	title = {Study of xenon binding in cryptophane-A using laser-induced NMR polarization enhancement},
	journal = {Journal of the American Chemical Society},
	volume = {121},
	year = {1999},
	note = {J Am Chem Soc189BTTimes Cited:73Cited References Count:64},
	month = {Apr 14},
	pages = {3502-3512},
	abstract = {<p>In solution, spin-polarization transfer between laser-polarized xenon and the hydrogen nuclei of nearby molecules leads to signal enhancements in the resolved H-1 NMR spectrum, offering new opportunities for probing the chemical environment of xenon atoms. Following binding of laser-polarized xenon to molecules of cryptophane-A, selective enhancements of the H-1 NMR signals were observed. A theoretical framework for the interpretation of such experimental results is provided, and the spin polarization-induced nuclear Overhauser effects are shown to yield information about the molecular environment of xenon. The observed selective H-1 enhancements allowed xenon-proton internuclear distances to be estimated. These distances reveal structural characteristics of the complex, including the preferred molecular conformations adopted by cryptophane-A upon binding of xenon.</p>
},
	keywords = {SPECTROSCOPY},
	isbn = {0002-7863},
	doi = {Doi 10.1021/Ja9841916},
	url = {<Go to ISI>://WOS:000079884800033},
	author = {Luhmer, M. and Goodson, B. M. and Song, Y. Q. and Laws, D. D. and Kaiser, L. and Cyrier, M. C. and Pines, A.}
}
