Solid-state NMR of the retinal protonated Schiff base in microbial rhodopsins
Available online 25 April 2024
Rhodopsin is a seven-helical transmembrane protein with a retinal chromophore covalently bound to a conserved lysine in helix G via a retinal protonated Schiff base (RPSB). Microbial rhodopsins absorb...
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A review of 17O isotopic labeling techniques for solid-state NMR structural studies of metal oxides in lithium-ion batteries
Available online 30 March 2024
Recent advances in utilizing 17O isotopic labeling methods for solid-state nuclear magnetic resonance (NMR) investigations of metal oxides for lithium-ion batteries have yielded extensive insights into...
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Transient NOE driven signal enhancement of INADEQUATE solid-state NMR spectroscopy for the structural analysis of rubbers
Available online 28 March 2024
INADEQUATE (Incredible Natural Abundance DoublE QUAntum Transfer Experiment) is one of the most important techniques in revealing the carbon skeleton of organic solids in solid-state NMR spectroscopy....
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Unexpected temperature dependence of 1H paramagnetic shift in MAS NMR of nickelocene
Available online 27 March 2024
This work revisits the temperature dependence of 1H paramagnetic shift in nickelocene as a potential nuclear magnetic resonance (NMR) thermometer under fast magic angle spinning (MAS) rate. Surprisingly,...
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Diffusion tractography of kidney by high angular resolution diffusion imaging
Available online 24 March 2024
Diffusion magnetic resonance imaging (MRI) has been utilized to probe the renal microstructures but investigating the three-dimensional (3D) tubular network still presents significant challenges due...
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Illuminating β-arrestin conformational dynamics by fluorine NMR
Available online 21 March 2024
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Ingenious liquid-observed vapor exchange (LOVE) NMR method revealing how sugars protect dry protein structure
Available online 19 March 2024
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Analysis of the electron transfer pathway in small laccase by EPR and UV–vis spectroscopy coupled with redox titration
Available online 17 March 2024
Bacterial small laccases (SLAC) are promising industrial biocatalysts due to their ability to oxidize a broad range of substrates with exceptional thermostability and tolerance for alkaline pH. Electron...
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Magnetic resonance imaging techniques for lithium-ion batteries: Principles and applications
Available online 15 March 2024
Operando monitoring of internal and local electrochemical processes within lithium-ion batteries (LIBs) is crucial, necessitating a range of non-invasive, real-time imaging characterization techniques...
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A study on the temperature sensitivity of NMR porosity in porous media based on the intensity of magnetization
February 2024
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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Gradient coil design with enhanced shielding constraint for a cryogen-free superconducting MRI system
February 2024
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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Rheo-NMR: A versatile hyphenated technique for capturing molecular dynamics and structure under flow
February 2024
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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Qualitative analysis of aromatic compounds via 1D TOCSY techniques
February 2024
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
February 2024
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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Experimental aspects of 14N overtone RESPDOR solid-state NMR spectroscopy under MAS beyond 60 kHz
February 2024
Nitrogen-14 (14N) overtone (OT) spectroscopy under fast magic angle spinning (MAS) conditions (>60 kHz) has emerged as a powerful technique for observing correlations and distances between 14N and 1H,...
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Enantiodifferentiation of chiral diols and diphenols via recognition-enabled chromatographic 19F NMR
Available online 15 February 2024
A novel and efficient method for distinguishing between chiral diols and diphenols has been established through the use of 19F NMR spectroscopy. Central to this system's efficacy is a chiral amine,...
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Structural analysis of silk using solid-state NMR
Available online 9 February 2024
Silkworms and spiders are capable of generating fibers that are both highly durable and elastic in a short span of time, using a silk solution stored within their bodies at room temperature and normal...
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Progress in in-situ electrochemical nuclear magnetic resonance for battery research
Available online 24 January 2024
A thorough understanding of the fundamental electrochemical and chemical processes in batteries is crucial to advancing energy density and power density. However, the characterizations of such processes...
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Solid-state NMR reveals that oxygen tri-clusters make glass highly crack-resistant
Available online 23 January 2024
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Facile identification of fluorosurfactant category in aqueous film-forming foam concentrates via optimized 19F NMR
Available online 9 January 2024
Aqueous film-forming foams (AFFFs) are the primary source of toxic perfluoroalkyl and polyfluoroalkyl substances (PFAS) in wastewater. Thus, it is urgent to develop a facile and fast method for identifying...
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Operando NMR methods for studying electrocatalysis
Available online 8 January 2024
The combination of electrochemical measurements with spectroscopic characterizations provides valuable insights into reaction mechanisms. Nuclear magnetic resonance (NMR) spectroscopy, as a powerful...
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Revealing structure correlation between ionic liquid and metal-organic framework matrix
Available online 3 January 2024
Solid-state batteries are rising rapidly in response to the fast-increasing energy demand. Metal-organic framework (MOF) loaded with ionic liquids has brought new opportunities for solid-state batteries...
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Solid-state NMR study on sodium intercalation at low voltage window for Na3V2(PO4)3 as an anode
Available online 27 December 2023
In-situ XRD, 31P NMR and 23Na NMR were used to analyze the interaction behavior of Na3V2(PO4)3 at low voltage, and then a new intercalation model was proposed. During the transition from Na3V2(PO4)3...
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