Investigating the impact of RF saturation‐pulse parameters on compartment‐selective gas‐phase depolarization with xenon polarization transfer contrast MRI
Sign Up to like & getrecommendations! Published in 2022 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.29405
Abstract: To demonstrate the utility of continuous‐wave (CW) saturation pulses in xenon‐polarization transfer contrast (XTC) MRI and MRS, to investigate the selectivity of CW pulses applied to dissolved‐phase resonances, and to develop a correction method for… read more here.
Keywords: saturation; xenon polarization; phase; transfer contrast ... See more keywords
Vanillin isotopic intramolecular 13C profile through polarization transfer NMR pulse sequence and statistical modelling
Sign Up to like & getrecommendations! Published in 2021 at "Food Control"
DOI: 10.1016/j.foodcont.2021.108345
Abstract: Abstract Vanilla is the most popular aroma among consumers and the authentication of its main compound – vanillin – remains a current challenge in transformed products, whose low vanillin concentration is a limitation to SNIF-NMR… read more here.
Keywords: vanillin; pulse sequence; polarization transfer; nmr pulse ... See more keywords
Mechanism of spontaneous polarization transfer in high-field SABRE experiments.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of magnetic resonance"
DOI: 10.1016/j.jmr.2017.12.018
Abstract: We propose an explanation of the previously reported SABRE (Signal Amplification By Reversible Exchange) effect at high magnetic fields, observed in the absence of RF-excitation and relying only on "spontaneous" polarization transfer from parahydrogen (pH2,… read more here.
Keywords: spontaneous polarization; sabre; field; polarization transfer ... See more keywords
Full Spectrum Isotopic 13C NMR Using Polarization Transfer for Position-Specific Isotope Analysis.
Sign Up to like & getrecommendations! Published in 2018 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.8b02139
Abstract: For the last ten years, quantitative isotope ratio monitoring 13C NMR (irm-13C NMR) has been successfully tested and proven as an efficient tool for the determination of position-specific 13C/12C ratios. Several applications in different domains… read more here.
Keywords: position specific; 13c nmr; polarization transfer;
Determination of Ligand Binding Epitope Structures Using Polarization Transfer from Hyperpolarized Ligands.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of medicinal chemistry"
DOI: 10.1021/acs.jmedchem.8b01711
Abstract: Drug discovery processes require the determination of the protein binding site structure, which can be achieved via nuclear magnetic resonance (NMR) spectroscopy. While traditional NMR spectroscopy suffers from low sensitivity, NMR signals can be significantly… read more here.
Keywords: polarization transfer; determination; polarization; spectroscopy ... See more keywords
Conformational Dynamics of an α-Synuclein Fibril upon Receptor Binding Revealed by Insensitive Nuclei Enhanced by Polarization Transfer-Based Solid-State Nuclear Magnetic Resonance and Cryo-Electron Microscopy.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c10854
Abstract: Many amyloid fibrils associated with neurodegenerative diseases consist of an ordered fibril core (FC) and disordered terminal regions (TRs). The former represents a stable scaffold, while the latter is rather active in binding with various… read more here.
Keywords: insensitive nuclei; microscopy; transfer based; nuclei enhanced ... See more keywords
PHIP hyperpolarized [1-13C]pyruvate and [1-13C]acetate esters via PH-INEPT polarization transfer monitored by 13C NMR and MRI
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-85136-2
Abstract: Parahydrogen-induced polarization of 13C nuclei by side-arm hydrogenation (PHIP-SAH) for [1-13C]acetate and [1-13C]pyruvate esters with application of PH-INEPT-type pulse sequences for 1H to 13C polarization transfer is reported, and its efficiency is compared with that… read more here.
Keywords: polarization transfer; 13c pyruvate; polarization; 13c acetate ... See more keywords
Hyperpolarization read-out through rapidly rotating fields in the zero- and low-field regime
Sign Up to like & getrecommendations! Published in 2022 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/d1cp04653e
Abstract: An integral part of para-hydrogen induced polarization (PHIP) methods is the conversion of nuclear singlet order into observable magnetization. In this study polarization transfer to a heteronucleus is achieved through a selective rotation of the… read more here.
Keywords: read rapidly; hyperpolarization read; polarization; field ... See more keywords
Are collisions with electrons important for modeling the polarization of the lines of the C2 solar molecule?
Sign Up to like & getrecommendations! Published in 2020 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/20/7/112
Abstract: Observations of the second solar spectrum (SSS) revealed the existence of prominent linear polarization signals due to lines of the C2 molecule. Interpretation of the SSS is the only tool to obtain weak and turbulent… read more here.
Keywords: polarization transfer; polarization; collisions electrons; transfer rates ... See more keywords