Results 11 to 20 of about 123,565 (254)

A review of the use of simple time-domain NMR/MRI for material-science

open access: yesSN Applied Sciences, 2021
The intention of this discussion is as a simple introduction for general—non-nuclear magnetic resonance (NMR)-specialist—materials scientists, to make them aware as to how some of the materials science measurements that they need to make might possibly ...
J. Beau W. Webber
doaj   +1 more source

Functional group resolved NMR relaxation of 3-carbon adsorbates in mesoporous alumina

open access: yesMagnetic Resonance Letters, 2023
NMR relaxation analysis provides a unique and non-invasive probe of fluid dynamics within porous materials, and may be applied to the interpretation of a wide variety of material and interfacial characteristics.
Neil Robinson   +2 more
doaj   +1 more source

Rheological and Low Field NMR Characterisation of Cystic Fibrosis Patient’s Sputum [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2023
The shear modulus G of the sputum obtained by expectoration from cystic fibrosis patients is fundamental to determine the mesh size of the polymeric network pervading the sputum, a parameter related to lung functionality.
G. Staltari   +8 more
doaj   +1 more source

Scleroglucan and guar gum: The synergistic effects of a new polysaccharide system

open access: yeseXPRESS Polymer Letters, 2022
Scleroglucan (Sclg) and Guar Gum (GG) are both capable to give gels in the presence of borax and this study is focused on how a mixed system of the two polysaccharides can be affected by the addition of borax. The anisotropic swelling behavior of tablets
Tommasina Coviello   +7 more
doaj   +1 more source

Comparison of Dehydration Efficiency and Quality of Mango with Different Osmotic Methods

open access: yesShipin gongye ke-ji, 2022
In order to compare the differences in dehydration efficiency and quality of mango under different osmotic methods in summer (30 ℃) and winter (20 ℃) production environments, this paper explored the effects of SSD and LOD on the dehydration efficiency ...
Hongwei ZHAO   +9 more
doaj   +1 more source

Moisture Distribution and Migration of Preserved Strawberries During Hot Air Drying at Constant and Gradient Temperature

open access: yesShipin gongye ke-ji, 2023
In order to discover the moisture distribution and migration during the drying process of strawberries at constant or gradient temperatures and the effect on the quality of dried strawberries, the strawberries which had experienced osmotic dehydration ...
Rongrong HE   +9 more
doaj   +1 more source

Solid-state NMR signals at zero-to-ultra-low-field

open access: yesJournal of Magnetic Resonance Open, 2022
Zero-to-ultra-low-field nuclear magnetic resonance (ZULF NMR) is fast emerging as a viable spectroscopic approach to study samples under conditions dominated by internal spin interactions.
K.K. George Kurian   +2 more
doaj   +1 more source

Determination of herb authenticity by low-field NMR

open access: yesFood Chemistry, 2013
The safe use of herbal medicines requires prior authentication of the raw materials used to make them. This is an important step, since the ingestion of herbal preparations or extracts can cause serious health problems. Among the different analytical techniques, nuclear magnetic resonance (NMR) spectroscopy has the advantage of being non-invasive and ...
Preto, M.S.M.   +3 more
openaire   +2 more sources

Selective drug trace detection with low-field NMR [PDF]

open access: yesThe Analyst, 2011
Advances with para-hydrogen induced polarization open up new fields of applications for portable low-field NMR. Here we report the possibility of tracing drugs down to the micromolar regime. We could selectively polarize nicotine quantities similar to those found in one cigarette. Also less than 1 mg of harmine, a drug used for treatment of Parkinson's
Glöggler, S.   +5 more
openaire   +4 more sources

Low‐field NMR for quality control on oils

open access: yesMagnetic Resonance in Chemistry, 2019
AbstractOil is a prominent, but multifaceted material class with a wide variety of applications. Technical oils, crude oils as well as edibles are main subclasses. In this review, the question is addressed how low‐field NMR can contribute in oil characterization as an analytical tool, mainly with respect to quality control.
Thomas Rudszuck   +3 more
openaire   +4 more sources

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