Results 41 to 50 of about 736 (155)

Facile hyperpolarization chemistry for molecular imaging and metabolic tracking of [1–13C]pyruvate in vivo

Journal of Magnetic Resonance Open, 2023
Hyperpolarization chemistry based on reversible exchange of parahydrogen, also known as Signal Amplification By Reversible Exchange (SABRE), is a particularly simple approach to attain high levels of nuclear spin hyperpolarization, which can enhance NMR ...
Keilian MacCulloch, Austin Browning, David O. Guarin Bedoya, Stephen J. McBride, Mustapha B. Abdulmojeed, Carlos Dedesma, Boyd M. Goodson, Matthew S. Rosen, Eduard Y. Chekmenev, Yi-Fen Yen, Patrick TomHon, Thomas Theis   +11 more
doaj   +1 more source

Heterogeneous Parahydrogen Pairwise Addition to Cyclopropane [PDF]

ChemPhysChem, 2018
AbstractHyperpolarized gases revolutionize functional pulmonary imaging. Hyperpolarized propane is a promising emerging contrast agent for pulmonary MRI. Unlike hyperpolarized noble gases, proton‐hyperpolarized propane gas can be imaged using conventional MRI scanners with proton imaging capability.
Oleg G. Salnikov, Kirill V. Kovtunov, Panayiotis Nikolaou, Larisa M. Kovtunova, Valerii I. Bukhtiyarov, Igor V. Koptyug, Eduard Y. Chekmenev   +6 more
openaire   +2 more sources

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer, Viktor Savic, Clemens Cziegler, Michael Schnürch, Marko D. Mihovilovic   +4 more
wiley   +2 more sources

Essential tools of linear algebra for calculating nuclear spin dynamics of chemically exchanging systems

Journal of Magnetic Resonance Open, 2023
In this work, we describe essential tools of linear algebra necessary for calculating the effect of chemical exchange on spin dynamics and polarization transfer in various nuclear magnetic resonance (NMR) experiments.
Jingyan Xu, Danila A. Barskiy
doaj   +1 more source

Parity-nonconserving cold neutron-parahydrogen interactions [PDF]

The European Physical Journal A, 2012
17 pages, 2 ...
openaire   +2 more sources

Efficient SABRE-SHEATH Hyperpolarization of Potent Branched-Chain-Amino-Acid Metabolic Probe [1-¹³C]ketoisocaproate

Metabolites, 2023
Efficient 13C hyperpolarization of ketoisocaproate is demonstrated in natural isotopic abundance and [1-13C]enriched forms via SABRE-SHEATH (Signal Amplification By Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei).
Isaiah Adelabu, Md Raduanul H. Chowdhury, Shiraz Nantogma, Clementinah Oladun, Firoz Ahmed, Lukas Stilgenbauer, Marianna Sadagurski, Thomas Theis, Boyd M. Goodson, Eduard Y. Chekmenev   +9 more
doaj   +1 more source

SAMBADENA Hyperpolarization of 13C‐Succinate in an MRI: Singlet‐Triplet Mixing Causes Polarization Loss

ChemistryOpen, 2019
The signal enhancement provided by the hyperpolarization of nuclear spins of biological molecules is a highly promising technique for diagnostic imaging.
Stephan Berner, Andreas B. Schmidt, Mirko Zimmermann, Dr. Andrey N. Pravdivtsev, Dr. Stefan Glöggler, Prof. Dr. Dr. h.c. Jürgen Hennig, PD Dr. Dominik von Elverfeldt, Prof. Dr. Jan‐Bernd Hövener   +7 more
doaj   +1 more source

Adsorption of parahydrogen on graphene [PDF]

Physical Review B, 2018
Replaced with published ...
Dusseault, Marisa, Boninsegni, Massimo
openaire   +2 more sources

Hyperpolarization of Molecular Deuterium

Angewandte Chemie International Edition, EarlyView.
Hyperpolarized molecular deuterium is generated and detected using a nonhydrogenative SABRE catalyst with nicotinamide. The resonance shows a strongly enhanced partially negative line, substrate‐dependent and sensitive to transient intermediates.
Theresa L. K. Hune, Anakin Aden, Julius F. Matz, Denis Moll, Ilya Kuprov, Stefan Glöggler   +5 more
wiley   +1 more source

Long nuclear spin coherence times for molecules trapped in high-purity solid parahydrogen

Physical Review Research
We measure the ensemble transverse relaxation time (T_{2}^{*}) and spin-echo coherence time (T_{2}) of the proton spin of HD molecules trapped in solid parahydrogen.
Alexandar P. Rollings, Jonathan D. Weinstein   +1 more
doaj   +1 more source