Materials

MATERIALS SCIENCE BIOMEDICAL FOOD & AGRICULTURE HETERONUCLEI

MATERIALS SCIENCE

FFC NMR relaxometry has found applications in some key industries, such as oil and polymers, as well as in basic research. Herein are some examples of the most popular materials FFC applications.

Please contact Stelar if you would like information on any application not listed here or you would like to try a new application.

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BIOMEDICAL APPLICATIONS

FFC NMR relaxometry can offer a range of solutions in healthcare, pharmaceutical, cosmetic and preclinical and clinical research applications, in particular in biomedical detection with clinical MR imaging contrast agents.

Please contact Stelar if you would like information on any application not listed here or you would like to try a new application.

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FOOD & AGRICULTURE

FFC NMR relaxometry can offer solutions for the food and agriculture industries, particularly for quality control, shelf-life and denomination of origin. The NMRD profile is sensitive to dehydration, oxidation, spoilage, and the addition of additives including adulterants that may lead to fraudulent products Below are some examples of these applications.

Please contact Stelar if you would like information on any application not listed here or you would like to try a new application.

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HETERONUCLEI

FFC NMR relaxometry is mostly used for proton-based analyses (1H nucleus), as detailed in the other applications pages. It is however possible to study dispersion curves or simpler decay curves of T1 for other nuclei, such as deuterium (2H), fluorine (19F), lithium (7Li), compounds enriched in carbon-13 (13C) and more.

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Materials science: ROCK CORES AND OIL INDUSTRY

Understanding the dynamics of transport properties of water and crude oil in porous rocks is crucial for the oil industry for improving extraction processes and yields of crude oil.

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Applying the FFC technique to study oil shale rocks, for example, allows important information to be obtained such as:

MICROSCOPIC

WETTABILITY

SURFACE DYNAMICS

POROSITY

PORE SIZE

DISTRIBUTION

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NMR dispersion profiles obtained from an oil shale rock.

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Materials science: POLYMERS and PLASTICS

The understanding of polymer dynamics has a huge practical interest due to the fact that most plastic objects are made from polymer melts. FFC NMR relaxometry has the potential to be developed into a standard analytical tool for industry for the characterization of polymers and quality assurance in manufacturing. It is possible to use FFC as a molecular rheology method as it investigates the molecular processes behind the macroscopic rheological behavior of polymers.

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Materials science:
IONIC LIQUIDS / ELECTROLYTES / BATTERIES

Sources of clean energy are becoming more important, especially for the automotive industry, with manufacturers moving more towards electric powered cars. Therefore, new materials for batteries (electrolytes / ionic liquids) are being developed and FFC NMR relaxometry can be used to study the dynamics of the anions and cations which are crucial to the material functioning as an efficient conductor of electricity.

Note about diffusion: FFC NMR relaxometry can be used to calculate the diffusion coefficient for ionic liquids/electrolytes. Indeed, the results for diffusion experiments conducted with FFC have been proven to be consistent with the results obtained from pulsed field-gradient (PFG) NMR methods.

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1H NMRD profiles of an ionic liquid for a smart battery system at different salt concentrations (increasing from A1 to A4). Stelar in-house data.


Materials science: LIQUID CRYSTALS

Liquid crystal screens are widely used in the electronics industry. The performance of liquid crystals is closely related to their various phases and their molecular dynamics is very complex. FFC NMR Relaxometry is a powerful and unique technique that allows the study of orientational order and molecular dynamics processes in these liquid crystalline systems over a wide range of magnetic fields.

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Fluorine NMRD profiles of a liquid crystal which undergoes a phase transition from isotropic to nematic phase between 67°C and 86°C: the change of phase is due to the different organization of the crystals and this is reflected in the two NMRD profiles taken at 80°C and 90°C.

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Materials science: CEMENT HYDRATION

The strength and durability of cement-based materials is controlled by the hydration process. The curing temperature strongly affects the hydration process. It has been found that FFC NMR relaxometry is effective for non-invasive monitoring of the hydration process by following the evolution of capillary water during the early hydration stages at different curing temperatures.

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