Qualitative analysis of aromatic compounds via 1D TOCSY techniques
Available online 4 December 2023
The aromatic compounds, including o-xylene, m-xylene, p-xylene, and ethylbenzene, primarily originate from the catalytic reforming of crude oil, and have a wide variety of applications. However, because...
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Multinuclear MR and MRI study of lithium-ion cells using a variable field magnet and a fixed frequency RF probe
Available online 4 December 2023
An exploratory multinuclear magnetic resonance (MR) and magnetic resonance imaging (MRI) study was performed on lithium-ion battery cells with 7Li, 19F, and 1H measurements. A variable field superconducting...
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Probing microstructure of solid-state synthesized LiCoO2 with MAS NMR spectroscopy
November 2023
LiCoO2 is an important category of active cathode materials in lithium-ion batteries due to its high compacted electrode density, good thermal stability, and stable voltage platform. Recent works on...
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The parallel-plate resonator: An RF probe for MR and MRI studies over a wide frequency range
November 2023
We explore the use of the parallel-plate resonator for the study of thin cuboid samples over a wide range of magnetic resonance frequencies. The parallel-plate resonator functions at frequencies from...
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Non-invasive assessment for intratumoural distribution of interstitial fluid flow
November 2023
Interstitial fluid plays a vital role in drug delivery and tumour treatment. However, few non-invasive measurement methods are available for measuring low-velocity biological fluid flow. Therefore,...
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Using NMR-detected hydrogen-deuterium exchange to quantify protein stability in cosolutes, under crowded conditions in vitro and in cells
November 2023
We review the use of nuclear magnetic resonance (NMR) spectroscopy to assess the exchange of amide protons for deuterons (HDX) in efforts to understand how high concentration of cosolutes, especially...
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Overview and progress of X-nuclei magnetic resonance imaging in biomedical studies
November 2023
Proton nuclear (1H) is the observed nucleus on which most magnetic resonance imaging (MRI) applications depend. Most traditional 1H MRI can provide structural and functional information about organisms,...
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1H and 13C NMR spectral assignments for low-concentration bile acids in biological samples
November 2023
Bile acids are the main body of enterohepatic circulation in vivo. They have essential functions such as emulsifying fat, bacteriostasis and regulating multiple metabolic pathways as signal molecules....
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Deep learning for determining pure isotropic proton spectra from solid-state spectra
Available online 22 November 2023
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hIAPP oligomers stabilized and probed by magic-angle spinning (MAS) NMR
Available online 2 November 2023
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Rheo-NMR: A versatile hyphenated technique for capturing molecular dynamics and structure under flow
Available online 26 October 2023
The general development of Rheo-NMR during the last four decades as well as selective hyphenated apparatuses is presented. Based on different magnet types, the current review is divided into two categories,...
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Gradient coil design with enhanced shielding constraint for a cryogen-free superconducting MRI system
Available online 25 September 2023
The relatively fragile low-temperature stability of cryogen-free superconducting magnetic resonance imaging (MRI) magnets requires the careful management of exogenous heat sources. A strongly shielded...
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Dipolar NMR relaxation of adsorbates on surfaces of controlled wettability
August 2023
In reservoir rocks, the term “ageing” refers to extended exposition to crude oil; a typically water-wet sandstone will then gradually become oil-wet as a consequence of the deposition of insoluble fractions...
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The NMR core analyzing tomograph: a multi-functional tool for non-destructive testing of building materials
August 2023
NMR is becoming increasingly popular for the investigation of building materials as it is a non-invasive technology that does not require any sample preparation nor causes damage to the material. Depending...
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Radicals on the silica surface: probes for studying dynamics by means of fast field cycling relaxometry and dynamic nuclear polarization
August 2023
Determining the dynamics of adsorbed liquids on nanoporous materials is crucial for a detailed understanding of interactions and processes on the solid-liquid interface in many materials and porous...
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A potential NMR-based wettability index using free induction decay for rocks
August 2023
The wettability of reservoir rocks saturated with oil and water is one of the most important factors influencing petrophysics and oil recovery. Minerals with different wettability constitute the overall...
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Functional group resolved NMR relaxation of 3-carbon adsorbates in mesoporous alumina
August 2023
NMR relaxation analysis provides a unique and non-invasive probe of fluid dynamics within porous materials, and may be applied to the interpretation of a wide variety of material and interfacial characteristics....
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On the sampling strategies and models for measuring diffusion exchange with a double diffusion encoding sequence
August 2023
Water exchange between the different compartments of a heterogeneous specimen can be characterized via diffusion magnetic resonance imaging (dMRI). Many analysis frameworks using dMRI data have been...
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A study on the temperature sensitivity of NMR porosity in porous media based on the intensity of magnetization
Available online 29 July 2023
The measurement of nuclear magnetic resonance (NMR) porosity is affected by temperature. Without considering the impact of NMR logging tools, this phenomenon is mainly caused by variations in magnetization...
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Diffusivity-limited q-space trajectory imaging
May 2023
Q-space trajectory imaging (QTI) allows non-invasive estimation of microstructural features of heterogeneous porous media via diffusion magnetic resonance imaging performed with generalised gradient...
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Solid-state NMR spectroscopy at ultrahigh resolution for structural and dynamical studies of MOFs
May 2023
To characterize the structure and dynamics of metal–-organic frameworks (MOFs) in-depth at the molecular level, it is necessary to pursue high-resolution solid-state magic angle spinning (MAS) nuclear...
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Binary fluids in mesoporous materials: Phase separation studied by NMR relaxation and diffusion
May 2023
Relaxation and diffusion measurements were carried out on single and binary liquids filling the pore space of controlled porous glass Vycor with an average pore size of about 4 nm. The dispersion of...
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Data inversion of multi-dimensional magnetic resonance in porous media
May 2023
Since its inception in the 1970s, multi-dimensional magnetic resonance (MR) has emerged as a powerful tool for non-invasive investigations of structures and molecular interactions. MR spectroscopy beyond...
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NMR relaxation and diffusion studies to probe the motional dynamics of risperidone within PLGA microsphere
May 2023
The present study aims to investigate the motional dynamics of risperidone within polylactic co-glycolic acid (PLGA) microsphere by employing solution state 1H and 19F nuclear magnetic resonance (NMR)...
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