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Magnetochemistry
Special Issues
Future Prospects for NMR Spectroscopy: A Perspective
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Future Prospects for NMR Spectroscopy: A Perspective

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Resonances".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 1960

Special Issue Editors

Dr. Bo Zhang

E-Mail Website
Guest Editor
Centre for Quantum Technology Research, Beijing Institute of Technology, Beijing 100081, China
Interests: quantum sensing; magnetic resonance; NV color centre
Dr. Kai Cai

E-Mail Website
Guest Editor
Department of Biophysics, UT Southwestern Medical Center, Dallas, TX 75205, USA
Interests: biochemistry; cell biology; structural biology; NMR; mass spectrometry; cryo-electron microscopy

Special Issue Information

Dear Colleagues,

NMR spectroscopy has become a key tool for unravelling the structures of complex molecules, spanning a wide area of applications from analytical chemistry and material science to bio-medical and neurosciences. The applications of conventional NMR techniques are limited by the low sensitivity of the conventional coil-based induction method of detection, which relies on a large ensemble of nuclear spins to accumulate a proper signal-to-noise ratio. Hence, some cutting-edge techniques for non-inductive detection, such as diamond-defect-based optical detected magnetic resonance (ODMR) and magnetic resonance force microscopy (MRFM), demonstrate routes to overcome this limit and reach the sensitivity of a single nuclear spin detection. Another approach to enhance sensitivity in NMR spectroscopy is to polarize nuclear spins with dynamic nuclear polarization (DNP) techniques, which improves the sensitivity in NMR spectra by orders of magnitude. The recent development of the room-temperature solid-state maser technique can also be applied to enhance the sensitivity of NMR spectroscopy. This Special Issue reviews the current status and future perspectives of NMR spectroscopy.

Dr. Bo Zhang
Dr. Kai Cai
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Magnetochemistry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • quantum sensing
  • nitrogen-vacancy color center
  • magnetic resonance
  • dynamics nuclear polarization
  • maser

Published Papers (1 paper)

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Research

13 pages, 911 KiB  
Article
Estimation of Radiation Damping Rates Using 133Cs, 7Li and 31P Solution NMR Spectroscopy and a Theoretical NMR RASER Model
by Eisuke Chikayama, Stephan J. Ginthör, Matthias Bechmann and Norbert Müller
Magnetochemistry 2023, 9(10), 221; https://doi.org/10.3390/magnetochemistry9100221 - 18 Oct 2023
Viewed by 1089
Abstract
Radio amplification using stimulated emission of radiation (RASER) effects in the NMR can increase NMR signals over time due to a feedback loop between the sample magnetization and the probe coil coupled with radiation damping (RD). Previously, RD rates had been directly observed [...] Read more.
Radio amplification using stimulated emission of radiation (RASER) effects in the NMR can increase NMR signals over time due to a feedback loop between the sample magnetization and the probe coil coupled with radiation damping (RD). Previously, RD rates had been directly observed only for the 1H, 3He, 17O and 129Xe nuclei. We report that experimental direct measurements of an NMR RASER to determine RD time constants for the three heteronuclei (133Cs (I = 7/2), 7Li (I = 3/2) and 31P (I = 1/2)) in a highly concentrated solution from the NMR RASER emissions using a conventional NMR probe. Under conditions where the RD rate exceeds the transverse relaxation rate (i.e., the NMR RASER condition is fulfilled), we recorded both the transverse NMR RASER response to imperfect inversion and the recovery of longitudinal magnetization. The data were directly evaluated based on the well-known Bloom model as estimated RD rate constants of 8.0, 1.8 and 25 Hz for 133Cs, 7Li and 31P, respectively. The proposed method can be applied to observe RD rate constants for the other nuclei as well. Full article
(This article belongs to the Special Issue Future Prospects for NMR Spectroscopy: A Perspective)
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