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Buntkowsky G, Theiss F, Lins J, Miloslavina YA, Wienands L, Kiryutin A, Yurkovskaya A. Recent advances in the application of parahydrogen in catalysis and biochemistry. RSC Adv 2022; 12:12477-12506. [PMID: 35480380 PMCID: PMC9039419 DOI: 10.1039/d2ra01346k] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/23/2022] [Indexed: 12/15/2022] Open
Abstract
Nuclear Magnetic Resonance (NMR) spectroscopy and Magnetic Resonance Imaging (MRI) are analytical and diagnostic tools that are essential for a very broad field of applications, ranging from chemical analytics, to non-destructive testing of materials and the investigation of molecular dynamics, to in vivo medical diagnostics and drug research. One of the major challenges in their application to many problems is the inherent low sensitivity of magnetic resonance, which results from the small energy-differences of the nuclear spin-states. At thermal equilibrium at room temperature the normalized population difference of the spin-states, called the Boltzmann polarization, is only on the order of 10-5. Parahydrogen induced polarization (PHIP) is an efficient and cost-effective hyperpolarization method, which has widespread applications in Chemistry, Physics, Biochemistry, Biophysics, and Medical Imaging. PHIP creates its signal-enhancements by means of a reversible (SABRE) or irreversible (classic PHIP) chemical reaction between the parahydrogen, a catalyst, and a substrate. Here, we first give a short overview about parahydrogen-based hyperpolarization techniques and then review the current literature on method developments and applications of various flavors of the PHIP experiment.
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Affiliation(s)
- Gerd Buntkowsky
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt Alarich-Weiss-Str. 8 D-64287 Darmstadt Germany
| | - Franziska Theiss
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt Alarich-Weiss-Str. 8 D-64287 Darmstadt Germany
| | - Jonas Lins
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt Alarich-Weiss-Str. 8 D-64287 Darmstadt Germany
| | - Yuliya A Miloslavina
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt Alarich-Weiss-Str. 8 D-64287 Darmstadt Germany
| | - Laura Wienands
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt Alarich-Weiss-Str. 8 D-64287 Darmstadt Germany
| | - Alexey Kiryutin
- International Tomography Center, Siberian Branch of the Russian Academy of Science Novosibirsk 630090 Russia
| | - Alexandra Yurkovskaya
- International Tomography Center, Siberian Branch of the Russian Academy of Science Novosibirsk 630090 Russia
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Abstract
AbstractLabeling in diffusion measurements by pulsed field gradient (PFG) NMR is based on the observation of the phase of nuclear spins acquired in a constant magnetic field with purposefully superimposed field gradients. This labeling does in no way affect microdynamics and provides information about the probability distribution of molecular displacements as a function of time. An introduction of the measuring principle is followed by a detailed description of the ranges of measurements and their limitation. Particular emphasis is given to an explanation of possible pitfalls in the measurements and the ways to circumvent them. Showcases presented for illustrating the wealth of information provided by PFG NMR include a survey on the various patterns of concentration dependence of intra-particle diffusion and examples of transport inhibition by additional transport resistances within the nanoporous particles and on their external surface. The latter information is attained by combination with the outcome of tracer exchange experiments, which are shown to become possible via a special formalism of PFG NMR data analysis. Further evidence provided by PFG NMR concerns diffusion enhancement in pore hierarchies, diffusion anisotropy and the impact of diffusion on chemical conversion in porous catalysts. A compilation of the specifics of PFG NMR and of the parallels with other measurement techniques concludes the paper.
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Gutmann T, Liu J, Rothermel N, Xu Y, Jaumann E, Werner M, Breitzke H, Sigurdsson ST, Buntkowsky G. Natural abundance 15N NMR by dynamic nuclear polarization: fast analysis of binding sites of a novel amine-carboxyl-linked immobilized dirhodium catalyst. Chemistry 2015; 21:3798-805. [PMID: 25620003 DOI: 10.1002/chem.201405043] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Indexed: 11/05/2022]
Abstract
A novel heterogeneous dirhodium catalyst has been synthesized. This stable catalyst is constructed from dirhodium acetate dimer (Rh2(OAc)4) units, which are covalently linked to amine- and carboxyl-bifunctionalized mesoporous silica (SBA-15-NH2-COOH). It shows good efficiency in catalyzing the cyclopropanation reaction of styrene and ethyl diazoacetate (EDA) forming cis- and trans-1-ethoxycarbonyl-2-phenylcyclopropane. To characterize the structure of this catalyst and to confirm the successful immobilization, heteronuclear solid-state NMR experiments have been performed. The high application potential of dynamic nuclear polarization (DNP) NMR for the analysis of binding sites in this novel catalyst is demonstrated. Signal-enhanced (13)C CP MAS and (15)N CP MAS techniques have been employed to detect different carboxyl and amine binding sites in natural abundance on a fast time scale. The interpretation of the experimental chemical shift values for different binding sites has been corroborated by quantum chemical calculations on dirhodium model complexes.
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Affiliation(s)
- Torsten Gutmann
- Institute of Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt (Germany).
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Lee JH, Okuno Y, Cavagnero S. Sensitivity enhancement in solution NMR: emerging ideas and new frontiers. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2014; 241:18-31. [PMID: 24656077 PMCID: PMC3967054 DOI: 10.1016/j.jmr.2014.01.005] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/14/2014] [Accepted: 01/17/2014] [Indexed: 05/05/2023]
Abstract
Modern NMR spectroscopy has reached an unprecedented level of sophistication in the determination of biomolecular structure and dynamics at atomic resolution in liquids. However, the sensitivity of this technique is still too low to solve a variety of cutting-edge biological problems in solution, especially those that involve viscous samples, very large biomolecules or aggregation-prone systems that need to be kept at low concentration. Despite the challenges, a variety of efforts have been carried out over the years to increase sensitivity of NMR spectroscopy in liquids. This review discusses basic concepts, recent developments and future opportunities in this exciting area of research.
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Affiliation(s)
- Jung Ho Lee
- Department of Chemistry and Biophysics Program, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706-1322, USA
| | - Yusuke Okuno
- Department of Chemistry and Biophysics Program, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706-1322, USA
| | - Silvia Cavagnero
- Department of Chemistry and Biophysics Program, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706-1322, USA.
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Abstract
Nuclear Magnetic Resonance (NMR) spectroscopy is a well-established method for the investigation of various types of porous materials. During the past decade, metal–organic frameworks have attracted increasing research interest. Solid-state NMR spectroscopy has rapidly evolved into an important tool for the study of the structure, dynamics and flexibility of these materials, as well as for the characterization of host–guest interactions with adsorbed species such as xenon, carbon dioxide, water, and many others. The present review introduces and highlights recent developments in this rapidly growing field.
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Koptyug IV. MRI of mass transport in porous media: drying and sorption processes. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2012; 65:1-65. [PMID: 22781314 DOI: 10.1016/j.pnmrs.2011.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 12/05/2011] [Indexed: 06/01/2023]
Affiliation(s)
- Igor V Koptyug
- International Tomography Center, SB RAS, 3A Institutskaya Str., Novosibirsk 630090, Russian Federation.
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Hoffmann HC, Assfour B, Epperlein F, Klein N, Paasch S, Senkovska I, Kaskel S, Seifert G, Brunner E. High-Pressure in Situ 129Xe NMR Spectroscopy and Computer Simulations of Breathing Transitions in the Metal–Organic Framework Ni2(2,6-ndc)2(dabco) (DUT-8(Ni)). J Am Chem Soc 2011; 133:8681-90. [DOI: 10.1021/ja201951t] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Herbert C. Hoffmann
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Bassem Assfour
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Fanny Epperlein
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Nicole Klein
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Silvia Paasch
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Irena Senkovska
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Stefan Kaskel
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Gotthard Seifert
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
| | - Eike Brunner
- Bioanalytische Chemie, ‡Physikalische Chemie, and §Anorganische Chemie I, Technische Universität Dresden, Fachrichtung Chemie und Lebensmittelchemie, 01062 Dresden, Germany
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Boutin C, Stopin A, Lenda F, Brotin T, Dutasta JP, Jamin N, Sanson A, Boulard Y, Leteurtre F, Huber G, Bogaert-Buchmann A, Tassali N, Desvaux H, Carrière M, Berthault P. Cell uptake of a biosensor detected by hyperpolarized 129Xe NMR: the transferrin case. Bioorg Med Chem 2011; 19:4135-43. [PMID: 21605977 DOI: 10.1016/j.bmc.2011.05.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 04/26/2011] [Accepted: 05/01/2011] [Indexed: 10/18/2022]
Abstract
For detection of biological events in vitro, sensors using hyperpolarized (129)Xe NMR can become a powerful tool, provided the approach can bridge the gap in sensitivity. Here we propose constructs based on the non-selective grafting of cryptophane precursors on holo-transferrin. This biological system was chosen because there are many receptors on the cell surface, and endocytosis further increases this density. The study of these biosensors with K562 cell suspensions via fluorescence microscopy and (129)Xe NMR indicates a strong interaction, as well as interesting features such as the capacity of xenon to enter the cryptophane even when the biosensor is endocytosed, while keeping a high level of polarization. Despite a lack of specificity for transferrin receptors, undoubtedly due to the hydrophobic character of the cryptophane moiety that attracts the biosensor into the cell membrane, these biosensors allow the first in-cell probing of biological events using hyperpolarized xenon.
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Affiliation(s)
- Céline Boutin
- CEA, IRAMIS, SIS2M, Laboratoire Structure et Dynamique par Résonance Magnétique, UMR CEA/CNRS 3299, Gif sur Yvette, France
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Paasch S, Brunner E. Trends in solid-state NMR spectroscopy and their relevance for bioanalytics. Anal Bioanal Chem 2010; 398:2351-62. [DOI: 10.1007/s00216-010-4037-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 06/14/2010] [Accepted: 07/14/2010] [Indexed: 01/25/2023]
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Ivanova II, Kolyagin YG. Impact of in situ MAS NMR techniques to the understanding of the mechanisms of zeolite catalyzed reactions. Chem Soc Rev 2010; 39:5018-50. [DOI: 10.1039/c0cs00011f] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Klein N, Herzog C, Sabo M, Senkovska I, Getzschmann J, Paasch S, Lohe MR, Brunner E, Kaskel S. Monitoring adsorption-induced switching by 129Xe NMR spectroscopy in a new metal–organic framework Ni2(2,6-ndc)2(dabco). Phys Chem Chem Phys 2010; 12:11778-84. [DOI: 10.1039/c003835k] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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12
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Baumer D, Fink A, Brunner E. Measurement of the 129Xe NMR Chemical Shift of Supercritical Xenon. ACTA ACUST UNITED AC 2008. [DOI: 10.1524/zpch.217.3.289.20465] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The measurement of the 129Xe Nuclear Magnetic Resonance (NMR) chemical shift as a function of density is reported. The apparatus used in this study enabled us to measure the 129Xe NMR chemical shift in the supercritical state up to a pressure of about 70 MPa, i.e., a density of 440 amagat1 at 298 K.
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Liu Y, Zhang W, Xie S, Xu L, Han X, Bao X. Probing the porosity of cocrystallized MCM-49/ZSM-35 zeolites by hyperpolarized 129Xe NMR. J Phys Chem B 2008; 112:1226-31. [PMID: 18181607 DOI: 10.1021/jp077396m] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
One- and two-dimensional 129Xe NMR spectroscopy has been employed to study the porosity of cocrystallized MCM-49/ZSM-35 zeolites under the continuous flow of hyperpolarized xenon gas. It is found by variable-temperature experiments that Xe atoms can be adsorbed in different domains of MCM-49/ZSM-35 cocrystallized zeolites and the mechanically mixed counterparts. The exchange of Xe atoms in different types of pores is very fast at ambient temperatures. Even at very low temperature two-dimensional exchange spectra (EXSY) show that Xe atoms still undergo much faster exchange between MCM-49 and ZSM-35 analogues in the cocrystallized zeolites than in the mechanical mixture. This demonstrates that the MCM-49 and ZSM-35 analogues in cocrystallized zeolites may be stacked much closer than in the physical mixture, and some parts of intergrowth may be formed due to the partially similar basic structure of MCM-49 and ZSM-35.
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Affiliation(s)
- Yong Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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14
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Imai H, Narazaki M, Inoshita H, Kimura A, Fujiwara H. MR Imaging of Mouse Lung Using Hyperpolarized 3He: Image Acquisition and T1 Estimation under Spontaneous Respiration. Magn Reson Med Sci 2006; 5:57-64. [PMID: 17008761 DOI: 10.2463/mrms.5.57] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE The purpose of this study was to acquire a hyperpolarized (HP) (3)He image of the mouse lung and to estimate 3He T1 in the lung from wash-out curve analysis under spontaneous respiration. MATERIALS AND METHODS We first tested the K-Rb hybrid method for the spin-exchange optical pumping (SEOP) of 3He using a home-built noble gas polarizer operated at atmospheric pressure and then applied it to MR imaging and spectroscopy of the mouse lung. The longitudinal relaxation time (T1) of 3He in the mouse lung was estimated under spontaneous respiration by exploiting a novel method in which SF6 gas at thermal equilibrium was utilized in combination with the HP 3He gas in the quantitative wash-out curve analysis. This method utilizes the difference in the profile of the wash-out curve of HP 3He and SF6 at thermal equilibrium. That is, the slope of the 3He wash-out curve in the semi-logarithmic plots is affected by 3 factors, including RF pulse angle, respiration, and T1, whereas the slope of the SF6 wash-out curve is only the function of respiratory term. RESULTS A 3He lung image was obtained successfully, and we were able to estimate successfully 3He T1 in the mouse lung under spontaneous respiration using a novel method; the estimated T1 value was 68+/-25 s, which was reasonable compared with the value calculated from the literature data measured during breath-hold. CONCLUSION We succeeded in acquiring the first 3He image of mouse lung in vivo in this country, and our proposed method of estimating 3He T1 in the lung under spontaneous respiration is noninvasive and readily applied to animals and would be useful to evaluate the alveolar gas exchange function as well as oxygen partial pressure (pO2) in lungs of animals.
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Affiliation(s)
- Hirohiko Imai
- Department of Medical Physics and Engineering, Division of Health Sciences, Graduate School of Medicine, Osaka University, Japan.
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Lee RF, Johnson G, Grossman RI, Stoeckel B, Trampel R, McGuinness G. Advantages of parallel imaging in conjunction with hyperpolarized helium—A new approach to MRI of the lung. Magn Reson Med 2006; 55:1132-41. [PMID: 16586457 DOI: 10.1002/mrm.20855] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hyperpolarized helium (3He) gas MRI has the potential to assess pulmonary function. The non-equilibrium state of hyperpolarized 3He results in the continual depletion of the signal level over the course of excitations. Under non-equilibrium conditions the relationship between the signal-to-noise ratio (SNR) and the number of excitations significantly deviates from that established in the equilibrium state. In many circumstances the SNR increases or remains the same when the number of data acquisitions decreases. This provides a unique opportunity for performing parallel MRI in such a way that both the temporal and spatial resolution will increase without the conventional decrease in the SNR. In this study an analytical relationship between the SNR and the number of excitations for any flip angle was developed. Second, the point-spread function (PSF) was utilized to quantitatively demonstrate the unconventional SNR behavior for parallel imaging in hyperpolarized gas MRI. Third, a 24-channel (24ch) receive and two-channel (2ch) transmit phased-array system was developed to experimentally prove the theoretical predictions with 3He MRI. The in vivo experimental results prove that significant temporal resolution can be gained without the usual SNR loss in an equilibrium system, and that the entire lung can be scanned within one breath-hold (approximately 13 s) by applying parallel imaging to 3D data acquisition.
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Affiliation(s)
- Ray F Lee
- Department of Radiology, New York University Medical Center, New York, New York 10016, USA.
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Han S, Kühn H, Häsing FW, Münnemann K, Blümich B, Appelt S. Time resolved spectroscopic NMR imaging using hyperpolarized 129Xe. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2004; 167:298-305. [PMID: 15040986 DOI: 10.1016/j.jmr.2004.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2003] [Revised: 12/19/2003] [Indexed: 05/24/2023]
Abstract
We have visualized the melting and dissolution processes of xenon (Xe) ice into different solvents using the methods of nuclear magnetic resonance (NMR) spectroscopy, imaging, and time resolved spectroscopic imaging by means of hyperpolarized 129Xe. Starting from the initial condition of a hyperpolarized solid Xe layer frozen on top of an ethanol (ethanol/water) ice block we measured the Xe phase transitions as a function of time and temperature. In the pure ethanol sample, pieces of Xe ice first fall through the viscous ethanol to the bottom of the sample tube and then form a thin layer of liquid Xe/ethanol. The xenon atoms are trapped in this liquid layer up to room temperature and keep their magnetization over a time period of 11 min. In the ethanol/water mixture (80 vol%/20%), most of the polarized Xe liquid first stays on top of the ethanol/water ice block and then starts to penetrate into the pores and cracks of the ethanol/water ice block. In the final stage, nearly all the Xe polarization is in the gas phase above the liquid and trapped inside the pores. NMR spectra of homogeneous samples of pure ethanol containing thermally polarized Xe and the spectroscopic images of the melting process show that very high concentrations of hyperpolarized Xe (about half of the density of liquid Xe) can be stored or delivered in pure ethanol.
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Affiliation(s)
- S Han
- Max-Planck Institute for Polymer Research, Ackermannweg 10, D-55128, Mainz, Germany
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Ziegler A, Hyacinthe JN, Choquet P, Duhamel G, Grillon E, Leviel JL, Constantinesco A. Laser-Polarized Xenon Nuclear Magnetic Resonance, a Potential Tool for Brain Perfusion Imaging: Measurement of the Xenon T1In Vivo. Methods Enzymol 2004; 385:149-65. [PMID: 15130738 DOI: 10.1016/s0076-6879(04)85009-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- Anne Ziegler
- Center Hospitalier Universitaire, Neuroimagerie Fonctionelle et Metabolique, Grenoble, France
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Dubois L, Parrès S, Huber JG, Berthault P, Desvaux H. Dynamics of Xenon inside Hydrophobic Cavities As Probed by NMR Relaxation of Dissolved Laser-Polarized Xenon. J Phys Chem B 2003. [DOI: 10.1021/jp0363242] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lionel Dubois
- Laboratoire Commun de R.M.N., DSM/DRECAM/Service de Chimie Moléculaire, URA CEA/CNRS 331 Claude Fréjacques C.E.A./Saclay, F-91191 Gif sur Yvette, France
| | - Sandra Parrès
- Laboratoire Commun de R.M.N., DSM/DRECAM/Service de Chimie Moléculaire, URA CEA/CNRS 331 Claude Fréjacques C.E.A./Saclay, F-91191 Gif sur Yvette, France
| | - J. Gaspard Huber
- Laboratoire Commun de R.M.N., DSM/DRECAM/Service de Chimie Moléculaire, URA CEA/CNRS 331 Claude Fréjacques C.E.A./Saclay, F-91191 Gif sur Yvette, France
| | - Patrick Berthault
- Laboratoire Commun de R.M.N., DSM/DRECAM/Service de Chimie Moléculaire, URA CEA/CNRS 331 Claude Fréjacques C.E.A./Saclay, F-91191 Gif sur Yvette, France
| | - Hervé Desvaux
- Laboratoire Commun de R.M.N., DSM/DRECAM/Service de Chimie Moléculaire, URA CEA/CNRS 331 Claude Fréjacques C.E.A./Saclay, F-91191 Gif sur Yvette, France
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Desvaux H, Huber JG, Brotin T, Dutasta JP, Berthault P. Magnetization transfer from laser-polarized xenon to protons with spin-diffusion quenching. Chemphyschem 2003; 4:384-7. [PMID: 12728555 DOI: 10.1002/cphc.200390067] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hervé Desvaux
- Laboratoire Commun de R.M.N. DSM/DRECAM/Service de Chimie Moléculaire URA CNRS 331, CEA/Saclay, 91191 Gif sur Yvette, France
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Möller HE, Chen XJ, Saam B, Hagspiel KD, Johnson GA, Altes TA, de Lange EE, Kauczor HU. MRI of the lungs using hyperpolarized noble gases. Magn Reson Med 2002; 47:1029-51. [PMID: 12111949 DOI: 10.1002/mrm.10173] [Citation(s) in RCA: 273] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The nuclear spin polarization of the noble gas isotopes (3)He and (129)Xe can be increased using optical pumping methods by four to five orders of magnitude. This extraordinary gain in polarization translates directly into a gain in signal strength for MRI. The new technology of hyperpolarized (HP) gas MRI holds enormous potential for enhancing sensitivity and contrast in pulmonary imaging. This review outlines the physics underlying the optical pumping process, imaging strategies coping with the nonequilibrium polarization, and effects of the alveolar microstructure on relaxation and diffusion of the noble gases. It presents recent progress in HP gas MRI and applications ranging from MR microscopy of airspaces to imaging pulmonary function in patients and suggests potential directions for future developments.
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Affiliation(s)
- Harald E Möller
- Max-Planck-Institut für neuropsychologische Forschung, Leipzig, Germany.
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Goodson BM. Nuclear magnetic resonance of laser-polarized noble gases in molecules, materials, and organisms. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2002; 155:157-216. [PMID: 12036331 DOI: 10.1006/jmre.2001.2341] [Citation(s) in RCA: 299] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The sensitivity of conventional nuclear magnetic resonance (NMR) techniques is fundamentally limited by the ordinarily low spin polarization achievable in even the strongest NMR magnets. However, by transferring angular momentum from laser light to electronic and nuclear spins, optical pumping methods can increase the nuclear spin polarization of noble gases by several orders of magnitude, thereby greatly enhancing their NMR sensitivity. This review describes the principles and magnetic resonance applications of laser-polarized noble gases. The enormous sensitivity enhancement afforded by optical pumping can be exploited to permit a variety of novel NMR experiments across numerous disciplines. Many such experiments are reviewed, including the void-space imaging of organisms and materials, NMR and MRI of living tissues, probing structure and dynamics of molecules in solution and on surfaces, NMR sensitivity enhancement via polarization transfer, and low-field NMR and MRI.
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Affiliation(s)
- Boyd M Goodson
- Materials Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley 94720-1460, USA
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Leawoods JC, Yablonskiy DA, Saam B, Gierada DS, Conradi MS. Hyperpolarized3He gas production and MR imaging of the lung. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/cmr.1014] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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