Spin hyperpolarization in modern magnetic resonance

J Eills, D Budker, S Cavagnero, EY Chekmenev… - Chemical …, 2023 - ACS Publications
Magnetic resonance techniques are successfully utilized in a broad range of scientific
disciplines and in various practical applications, with medical magnetic resonance imaging …

Robust parahydrogen-induced polarization at high concentrations

L Dagys, MC Korzeczek, AJ Parker, J Eills… - Science …, 2024 - science.org
Parahydrogen-induced polarization (PHIP) is a potent technique for generating target
molecules with high nuclear spin polarization. The PHIP process involves a chemical …

In Situ Hyperpolarization Enables 15N and 13C Benchtop NMR at Natural Isotopic Abundance

R Kircher, J Xu, DA Barskiy - Journal of the American Chemical …, 2023 - ACS Publications
Without employing isotopic labeling, we demonstrate the generation of 15N and 13C NMR
signals for molecules containing− NH2 motifs using benchtop NMR spectrometers (1–1.4 T) …

[HTML][HTML] Long live the singlet state!

MH Levitt - Journal of Magnetic Resonance, 2019 - Elsevier
The field of long-lived states in NMR is reviewed. The relationship of long-lived-state
phenomena to those associated with spin isomerism is discussed. A brief overview is given …

Symmetry versus entropy: Long-lived states and coherences

F Teleanu, A Sadet, PR Vasos - Progress in Nuclear Magnetic Resonance …, 2021 - Elsevier
In recent years, new molecular symmetry-based approaches for magnetic resonance have
been invented. The implications of these discoveries will be significant for molecular …

Singlet-filtered NMR spectroscopy

S Mamone, N Rezaei-Ghaleh, F Opazo… - Science …, 2020 - science.org
Selectively studying parts of proteins and metabolites in tissue with nuclear magnetic
resonance promises new insights into molecular structures or diagnostic approaches …

Singlet order conversion and parahydrogen-induced hyperpolarization of 13C nuclei in near-equivalent spin systems

J Eills, G Stevanato, C Bengs, S Glöggler… - Journal of Magnetic …, 2017 - Elsevier
We have demonstrated two radiofrequency pulse methods which convert the nuclear singlet
order of proton spin pairs into the magnetisation of nearby 13 C nuclei. These irradiation …

Polychromatic excitation of delocalized long-lived proton spin states in aliphatic chains

A Sonnefeld, G Bodenhausen, K Sheberstov - Physical Review Letters, 2022 - APS
Long-lived states (LLS) involving pairs of magnetically inequivalent but chemically
equivalent proton spins in aliphatic (CH 2) n chains can be excited by simultaneous …

Symmetry-based singlet–triplet excitation in solution nuclear magnetic resonance

M Sabba, N Wili, C Bengs, JW Whipham… - The Journal of …, 2022 - pubs.aip.org
ABSTRACT Coupled pairs of spin-1/2 nuclei support one singlet state and three triplet
states. In many circumstances, the nuclear singlet order, defined as the difference between …

Parahydrogen-induced polarization and spin order transfer in ethyl pyruvate at high magnetic fields

AN Pravdivtsev, A Brahms, F Ellermann, T Stamp… - Scientific reports, 2022 - nature.com
Nuclear magnetic resonance has experienced great advances in developing and translating
hyperpolarization methods into procedures for fundamental and clinical studies. Here, we …