Results 31 to 40 of about 61,022 (308)

13C and 15N NMR Detection of Metabolites via Relayed Hyperpolarization at 1 T and 1.4 T

open access: yes, 2022
Nuclear-spin hyperpolarization allows various magnetic-resonance applications in chemistry and medicine that are unattainable by standard methods. For such applications, parahydrogen-based hyperpolarization approaches are particularly attractive because ...
Erik Van, Dyke   +4 more
core   +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

Mechanisms underlying the activity-dependent regulation of locomotor network performance by the Na+ pump [PDF]

open access: yes, 2015
This research was funded by BBSRC (project grants to KTS (BB/F015488/1) and W-CL; EastBio studentship to LP) and Wellcome Trust (ISSF to H-YZ).Activity-dependent modification of neural network output usually results from changes in neurotransmitter ...
Zhang, Hongyan   +6 more
core   +1 more source

Synthesis and hyperpolarization of 13C and 2H labeled vinyl pyruvate and pyruvate

open access: yes, 2022
The hyperpolarization of nuclear spins has enabled unique applications in chemistry, biophysics, and particularly in metabolic imaging. Parahydrogen-induced polarization (PHIP) offers a fast and cost-efficient way of hyperpolarization. Nevertheless, PHIP
Andrey, Pravdivtsev   +6 more
core   +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

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

Characteristics of long-duration inhibitory postsynaptic potentials in rat neocortical neurons in vitro [PDF]

open access: yes, 1987
1. The characteristics of long-duration inhibitory postsynaptic potentials (l-IPSPs) which are evoked in rat frontal neocortical neurons by local electrical stimulation were investigated with intracellular recordings from anin vitro slice preparation.
Howe, James R.   +2 more
core   +1 more source

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