Results 1 to 10 of about 10,176 (239)
Frontiers in Radiology, 2022 Quantitative magnetic resonance imaging (qMRI) can increase the specificity and sensitivity of conventional weighted MRI to underlying pathology by comparing meaningful physical or chemical parameters, measured in physical units, with normative values ...
Elda Fischi-Gomez +44 more
doaj +1 more source
Detecting Dye-Contaminated Vegetables Using Low-Field NMR Relaxometry
Foods, 2021 Dyeing vegetables with harmful compounds has become an alarming public health issue over the past few years. Excessive consumption of these dyed vegetables can cause severe health hazards, including cancer.
Sumaiya Shomaji +7 more
doaj +1 more source
USO DA RMN DE BAIXA RESOLUÇÃO NA AVALIAÇÃO DA DINÂMICA MOLECULAR DO Origanum vulgare
Química Nova, 2015 In this work, proton NMR relaxometry was used to measure the behavior of spin-lattice relaxation time with T1H as the time constant, and also of spin-spin relaxation time with the time constant T2H.
Vanessa Cristina dos Santos Peixoto de Oliveira +4 more
doaj +1 more source
Quantitative Relaxometry of the Brain [PDF]
Topics in Magnetic Resonance Imaging, 2010 The exquisite soft tissue contrast provided by magnetic resonance imaging arises principally from differences in the intrinsic relaxation properties, T1 and T2. Although the intricate relationships that link tissue microstructure and the longitudinal and transverse relaxation times remain to be firmly established, quantitative measurement of these ...
openaire +2 more sources
International Journal of Analytical Chemistry, 2016 We have demonstrated that the relaxometry technique is very efficient to quantify paramagnetic ions during in situ electrolysis measurements. Therefore, the goal of this work was to validate the relaxometry technique in the determination of the ...
Bruna Ferreira Gomes +3 more
doaj +1 more source
Molecules, 2021 Mesoporous silica materials are the subjects for relaxometric NMR studies in which we obtain information on the properties of molecules in confined geometries.
Grzegorz Stoch, Artur T. Krzyżak
doaj +1 more source
Applied Sciences, 2021 The addition of frozen curd (FC) during the production process of “Mozzarella di Bufala Campana”, an Italian cheese with Protected Designation of Origin (PDO), is a common fraud not involving modifications of the chemical composition in the final product.
Carlo Mengucci +7 more
doaj +1 more source
Nanomaterials, 2023 This paper describes a novel nanoformulation for dual MRI/US in vivo monitoring of drug delivery/release. The nanosystem was made of a perfluoropentane core coated with phospholipids stabilized by glycol chitosan crosslinked with triphosphate ions, and ...
Simona Baroni +7 more
doaj +1 more source
23Na relaxometry: An overview of theory and applications
Magnetic Resonance Letters, 2023 23Na is a nuclear magnetic resonance (NMR)-active isotope with a nuclear spin quantum number of 3/2. 23Na relaxation phenomenon is at the core of 23Na NMR measurement and analysis. Due to the dominance of quadrupolar interaction, the relaxation behavior of 23Na is physically and mathematically more complex than that of a typical spin-1/2 isotope.
Yifan Song +4 more
openaire +3 more sources
Frontiers in Molecular Biosciences, 2022 The dynamic interactions of enzymes and substrates underpins catalysis, yet few techniques can interrogate the dynamics of protein-bound ligands. Here we describe the use of field cycling NMR relaxometry to measure the dynamics of enzyme-bound substrates
Mary F. Roberts, Lizbeth Hedstrom
doaj +1 more source