Results 21 to 30 of about 51,213 (265)

Mapping of Absolute Host Concentration and Exchange Kinetics of Xenon Hyper-CEST MRI Agents

open access: yesPharmaceuticals, 2021
Xenon magnetic resonance imaging (MRI) provides excellent sensitivity through the combination of spin hyperpolarization and chemical exchange saturation transfer (CEST).
Martin Kunth   +2 more
doaj   +1 more source

Imaging Sequences for Hyperpolarized Solids

open access: yesMolecules, 2020
Hyperpolarization is one of the approaches to enhance Nuclear Magnetic Resonance (NMR) and Magnetic Resonance Imaging (MRI) signal by increasing the population difference between the nuclear spin states.
Xudong Lv   +7 more
doaj   +1 more source

Investigating Rubidium Density and Temperature Distributions in a High-Throughput 129Xe-Rb Spin-Exchange Optical Pumping Polarizer

open access: yesMolecules, 2022
Accurate knowledge of the rubidium (Rb) vapor density, [Rb], is necessary to correctly model the spin dynamics of 129Xe-Rb spin-exchange optical pumping (SEOP).
James E. Ball   +2 more
doaj   +1 more source

GABA Receptors Can Depolarize the Neuronal Membrane Potential via Quantum Tunneling of Chloride Ions: A Quantum Mathematical Study

open access: yesCells, 2022
GABA (gamma-aminobutyric acid) receptors represent the major inhibitory receptors in the nervous system and their inhibitory effects are mediated by the influx of chloride ions that tends to hyperpolarize the resting membrane potential.
Sager Nawafleh   +6 more
doaj   +1 more source

Preconditioning with Near-Infrared Irradiation to Enhance the Irreversible Electroporation Efficiency in HeLa Cells

open access: yesApplied Sciences, 2021
Irreversible electroporation (IRE) has gained attention for ablation owing to fewer side effects and fast recovery. However, a high current from the applied high voltage can cause muscle contraction. Adding cationic molecules has been introduced to lower
Hong Bae Kim, Seung Jeong, Ku Youn Baik
doaj   +1 more source

Efficient SABRE-SHEATH Hyperpolarization of Potent Branched-Chain-Amino-Acid Metabolic Probe [1-13C]ketoisocaproate

open access: yesMetabolites, 2023
Efficient 13C hyperpolarization of ketoisocaproate is demonstrated in natural isotopic abundance and [1-13C]enriched forms via SABRE-SHEATH (Signal Amplification By Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei).
Isaiah Adelabu   +9 more
doaj   +1 more source

Hyperpolarized NMR Probes for Biological Assays

open access: yesSensors, 2014
During the last decade, the development of nuclear spin polarization enhanced (hyperpolarized) molecular probes has opened up new opportunities for studying the inner workings of living cells in real time.
Sebastian Meier   +3 more
doaj   +1 more source

Hyperpolarized Nanodiamond Surfaces [PDF]

open access: yesJournal of the American Chemical Society, 2016
The widespread use of nanodiamond as a biomedical platform for drug-delivery, imaging, and sub-cellular tracking applications stems from their non-toxicity and unique quantum mechanical properties. Here, we extend this functionality to the domain of magnetic resonance, by demonstrating that the intrinsic electron spins on the nanodiamond surface can be
Ewa Rej   +3 more
openaire   +3 more sources

Hyperpolarization and the endothelium

open access: yesCurrent Opinion in Physiology, 2023
The ability of vascular endothelial cells to generate and conduct membrane hyperpolarization is a critical integrative mechanism controlling local blood flow and systemic blood pressure. This mechanism is particularly apparent in the microcirculation.
Christopher J Garland, Kim A Dora
openaire   +2 more sources

In-vitro NMR Studies of Prostate Tumor Cell Metabolism by Means of Hyperpolarized [1-13C]Pyruvate Obtained Using the PHIP-SAH Method

open access: yesFrontiers in Oncology, 2020
Nuclear Magnetic Resonance allows the non-invasive detection and quantitation of metabolites to be carried out in cells and tissues. This means that that metabolic changes can be revealed without the need for sample processing and the destruction of the ...
Eleonora Cavallari   +5 more
doaj   +1 more source

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