Results 101 to 110 of about 2,821 (200)

Quantum Monte Carlo study of thin parahydrogen films on graphite

Results in Physics
The low-temperature properties of one and two layers of parahydrogen adsorbed on graphite are investigated theoretically through Quantum Monte Carlo simulations. We adopt a microscopic model that explicitly includes the corrugation of the substrate.
Jie-Ru Hu, Massimo Boninsegni
doaj   +1 more source

Formulation of a nonanalytic equation of state for parahydrogen

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1969
A method is described for building an equation of state which gives an infinite specific heat C v at the critical point approached from the one-phase domain. Interpolated PVT data are used on isochores up to 100 K at densities to the liquid triple point.
openaire   +2 more sources

SABRE-hyperpolarization dynamics of [1-13C]pyruvate monitored by in situ zero- to ultra-low field NMR

Journal of Magnetic Resonance Open
Hyperpolarized [1–13C]pyruvate is the leading metabolite used in the emerging field of hyperpolarization-enhanced MRI. Signal amplification by reversible exchange (SABRE) is a straight forward hyperpolarization method that has recently been shown to ...
Adam Ortmeier, Keilian MacCulloch, Danila A. Barskiy, Nicolas Kempf, John Z Myers, Rainer Körber, Andrey N Pravdivtsev, Kai Buckenmaier, Thomas Theis   +8 more
doaj   +1 more source

Parahydrogen-based NMR signal amplification by reversible exchange (SABRE): Recent advances and applications

Mendeleev communications (Print), 2023
O. G. Salnikov, D. B. Burueva, I. V. Skovpin, I. Koptyug   +3 more
semanticscholar   +1 more source

Parahydrogen-induced polarization of 14N nuclei

Angewandte Chemie International Edition
Hyperpolarization techniques provide a dramatic increase in sensitivity of nuclear magnetic resonance spectroscopy and imaging. In spite of the outstanding progress in solution-state hyperpolarization of spin-1/2 nuclei, hyperpolarization of quadrupolar nuclei remains challenging.
Salnikov, Oleg G., Trofimov, Ivan A., Bender, Zachary T., Trepakova, Alexandra I., Xu, Jingyan, Wibbels, Garrett L., Shchepin, Roman V., Koptyug, Igor V., Barskiy, Danila A.   +8 more
openaire   +4 more sources

An Experimental Setup to Study Electron Transport and Thermalization in Cryogenic Para-Hydrogen Crystal Matrices

Instruments
We present an experimental apparatus to investigate electron transport and thermalization in cryogenic para-hydrogen crystal matrices. This paper describes the techniques used to grow and characterize the cryogenic para-hydrogen crystals, the optical ...
Piergiorgio Antonini, Massimo Benettoni, Armando F. Borghesani, Caterina Braggio, Roberto Calabrese, Giovanni Carugno, Federico Chiossi, Ugo Gasparini, Franco Gonella, Marco Guarise, Alen Khanbekyan, Alessandro Lippi, Augusto Lombardi, Emilio Mariotti, Madiha M. Makhdoom, Giuseppe Messineo, Jacopo Pazzini, Giuseppe Ruoso, Luca Tomassetti, Marco Zanetti   +19 more
doaj   +1 more source

Probing nanoparticle proximity effects on selective butadiene hydrogenation over Pd-Au/TiO2 with parahydrogen-induced polarization NMR

Journal of Magnetic Resonance Open
Selective butadiene hydrogenation to butene is a crucial process in the petrochemical industry, however, a comprehensive understanding of the underlying structure-activity relationships remains elusive.
Bintian Lu, Weiyu Wang, Shuangqin Zeng, Xiuzhi Gao, Jun Xu, Feng Deng   +5 more
doaj   +1 more source

Scalable modeling of multi-spin ensembles in SABRE hyperpolarization: a symmetry-based framework for zero and ultralow fields. [PDF]

Magn Reson (Gott)
Markelov D, Snadin A, Kiryutin A, Barskiy D, Yurkovskaya A.   +4 more
europepmc   +1 more source

Probing Hydrogen Activation in a Dimetal Dihydride Complex by Symmetric Exchange with Parahydrogen. [PDF]

J Am Chem Soc
Matz JF, Kaltschnee L, Mozzi SI, Rodriguez GG, Römer A, Mata RA, Kuprov I, Meyer F, Glöggler S.   +8 more
europepmc   +1 more source

Label-Free Measurement of Ligand Interactions Using SABRE Hyperpolarization at Low Magnetic Fields. [PDF]

Anal Chem
Roy A, Hilty C.
europepmc   +1 more source