T Theis, ML Truong, AM Coffey… - Journal of the …, 2015 - ACS Publications
Parahydrogen is demonstrated to efficiently transfer its nuclear spin hyperpolarization to nitrogen-15 in pyridine and nicotinamide (vitamin B3 amide) by conducting “signal …
G Pileio - Progress in nuclear magnetic resonance spectroscopy, 2017 - Elsevier
This paper discusses methodology developed over the past 12 years in order to access and manipulate singlet order in systems comprising two coupled spin-1/2 nuclei in liquid-state …
Conventional magnetic resonance (MR) faces serious sensitivity limitations which can be overcome by hyperpolarization methods, but the most common method (dynamic nuclear …
Nuclear spin hyperpolarization is an important resource for increasing the sensitivity of NMR spectroscopy and MRI. Signal enhancements can be as large as 3–4 orders of magnitude …
Various hyperpolarization methods are able to enhance the sensitivity of nuclear magnetic resonance (NMR) spectroscopy and magnetic resonance imaging (MRI) by several orders of …
Isomerization of 1-butene critically influences product distributions in 1, 3-butadiene hydrogenation. However, distinguishing between the isomerization and hydrogenation …
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 …
The strong enhancement of NMR signals achieved by hyperpolarization decays, at best, with a time constant of a few minutes. Here, we show that a combination of long-lived singlet …
A Sonnefeld, A Razanahoera, P Pelupessy… - Science …, 2022 - science.org
In nuclear magnetic resonance (NMR), the lifetimes of long-lived states (LLSs) are exquisitely sensitive to their environment. However, the number of molecules where such …