Search Results - "Jannin, S"
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Long-lived states to sustain hyperpolarized magnetization
Published in Proceedings of the National Academy of Sciences - PNAS (03-11-2009)“…Major breakthroughs have recently been reported that can help overcome two inherent drawbacks of NMR: the lack of sensitivity and the limited memory of…”
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2
Overhauser effects in non-conducting solids at 1.2 K
Published in Journal of magnetic resonance (1997) (01-01-2018)“…[Display omitted] •Unexpected Overhauser effects are observed in samples of BDPA doped into polystyrene at 1.2 K. Recently, it was observed that protons in…”
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3
A 140 GHz prepolarizer for dissolution dynamic nuclear polarization
Published in The Journal of chemical physics (28-06-2008)“…Apart from their very classical use to build polarized targets for particle physics, the methods of dynamic nuclear polarization (DNP) have more recently found…”
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4
Cubic three-dimensional hybrid silica solids for nuclear hyperpolarization
Published in Chemical science (Cambridge) (01-01-2016)“…Hyperpolarization of metabolites by dissolution dynamic nuclear polarization (D-DNP) for MRI applications often requires fast and efficient removal of the…”
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5
An apparatus for pulsed ESR and DNP experiments using optically excited triplet states down to liquid helium temperatures
Published in Journal of magnetic resonance (1997) (01-09-2013)“…[Display omitted] •Apparatus for pulse X-band ESR, pulse DNP and NMR with optically excited triplet states.•Helium flow cryostat with fiber coupling stage to…”
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6
Hyperpolarizing gases via dynamic nuclear polarization and sublimation
Published in Physical review letters (02-07-2010)“…A high throughput method was designed to produce hyperpolarized gases by combining low-temperature dynamic nuclear polarization with a sublimation procedure…”
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7
Producing over 100 ml of highly concentrated hyperpolarized solution by means of dissolution DNP
Published in Journal of magnetic resonance (1997) (01-09-2008)“…New low-temperature inserts compatible with an existing hyperpolarizer were developed to dynamically polarize nuclei in large samples. The performance of the…”
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8
Principles of Operation of a DNP Prepolarizer Coupled to a Rodent MRI Scanner
Published in Applied magnetic resonance (01-08-2008)“… A dynamic nuclear polarization prepolarizer was developed and coupled to a 9.4 T rodent magnetic resonance imaging scanner in order to perform in vivo…”
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9
Relaxometry of insensitive nuclei: Optimizing dissolution dynamic nuclear polarization
Published in Journal of magnetic resonance (1997) (01-05-2011)“…The scheme shows a dissolution-DNP polarizer and a 800 MHz NMR magnet. The hyperpolarized sample experiences very low fields during its transfer, which…”
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10
Three-field NMR to preserve hyperpolarized proton magnetization as long-lived states in moderate magnetic fields
Published in Chemical physics letters (25-08-2011)“…[Display omitted] ►Molecules are hyperpolarized at BDNP=3.35T by dynamic nuclear polarization (DNP). ► Long Lived States (LLS) are prepared via a suitable…”
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11
Direct observation of hyperpolarization breaking through the spin diffusion barrier
Published in Science advances (01-04-2021)“…Dynamic nuclear polarization (DNP) is a widely used tool for overcoming the low intrinsic sensitivity of nuclear magnetic resonance spectroscopy and imaging…”
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12
Pars Plana Vitrectomy Outcomes for Rhegmatogenous Retinal Detachment Qualifying for Pneumatic Retinopexy
Published in Clinical ophthalmology (Auckland, N.Z.) (01-01-2021)“…To investigate real-world outcomes of pars plana vitrectomy (PPV) for eyes with primary rhegmatogenous retinal detachments (RRD) eligible for pneumatic…”
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13
Solid-state 1H spin polarimetry by 13CH3 nuclear magnetic resonance
Published in Magnetic Resonance : (Göttingen) (20-08-2021)“…Dissolution dynamic nuclear polarization is used to prepare nuclear spin polarizations approaching unity. At present, 1H polarization quantification in the…”
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Cubic three-dimensional hybrid silica solids for nuclear hyperpolarization† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c6sc02055k Click here for additional data file
Published in Chemical science (Cambridge) (18-07-2016)“…Porous network architecture of hybrid silicas containing TEMPO radicals along their pores is key for increased hyperpolarization performances…”
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15
Fine optimization of a dissolution dynamic nuclear polarization experimental setting for 13C NMR of metabolic samples
Published in Magnetic Resonance : (Göttingen) (01-01-2022)“…NMR-based analysis of metabolite mixtures provides crucial information on biological systems but mostly relies on 1D 1H experiments for maximizing sensitivity…”
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Dipolar order mediated 1H→13C cross-polarization for dissolution-dynamic nuclear polarization
Published in Magnetic Resonance : (Göttingen) (20-05-2020)“…Magnetic resonance imaging and spectroscopy often suffer from a low intrinsic sensitivity, which can in some cases be circumvented by the use of…”
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Producing over 100ml of highly concentrated hyperpolarized solution by means of dissolution DNP
Published in Journal of magnetic resonance (1997) (01-09-2008)Get full text
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Case Report- A rare case of human trypanosomiasis caused by Trypanosoma evansi
Published in Indian journal of medical microbiology (12-04-2006)“…Human trypanosoma infections like the ones seen in Africa and South America are unknown in India. The only exception in literature is of two documented cases…”
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