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Measuring the solubility product constant of paramagnetic cations using time-domain nuclear magnetic resonance relaxometry
(Elsevier B.V., 2015-07-01)
The use of time-domain NMR relaxometry is already well established for determining the concentration of paramagnetic cations. Paramagnetic cations have unpaired electrons, and in aqueous solutions, they interact with ...
NMR relaxometry analysis of molecular degradation in internal combustion engine lubricants
(John Wiley & Sons Ltd, 2021-04)
A set of experimental techniques headed by proton fast field-cycling nuclear magnetic resonance (1HFFC-NMR) were used to analyze the effects of degradation of lubricant oil used in an internal combustion engine (ICE). Its ...
Dynamical regimes of lipids in additivated liposomes with enhanced elasticity: A field-cycling NMR relaxometry approach
(Elsevier Science, 2017-09)
We study the molecular dynamics of lipids in binary large unilamellar liposomes suspended in D2O composed of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) or soy phosphatidylcholine (SPC) additivated with different ...
NMR Relaxometry analysis of lubricant oils degradation
(IOP Publishing, 2005-09)
The present work was undertaken in order to investigate lubricant oil degradation at the molecular level. Ageing effects, as reflected on the proton spin-lattice relaxation rate (T −1 1 ) dispersion, were studied in two ...
Monitoring lubricant oil degradation using field-cycling NMR relaxometry
(Taylor & Francis Ltd, 2019-04-30)
Proton fast field-cycling nuclear magnetic resonance (1 HFFC-NMR) was used to study the effect of thermal stress in mineral base oil. The base oil underwent controlled thermal degradation and its relaxometric response was ...
Rouse dynamics in PEO-PPO-PEO block-copolymers in aqueous solution as observed through fast field-cycling NMR relaxometry
(Elsevier, 2018-08-15)
We present a proton fast field-cycling (FFC) NMR relaxometry study of the molecular dynamics in three different deuterated water-dispersed triblock copolymers of ethylene oxide (EO) and propylene oxide (PO):EO80PO27EO80(F68), ...