✦ LIBER ✦

On the validity of 31P-NMR determinations of phospholipid polymorphic phase behaviour

✍ Scribed by C.P.S. Tilcock; P.R. Cullis; S.M. Gruner

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 455 KB
Volume: 40
Category: Article
ISSN: 0009-3084
DOI: 10.1016/0009-3084(86)90061-7

No coin nor oath required. For personal study only.

✦ Synopsis

3~P-NMR is often employed to determine the polymorphic phase preferences of aqueous dispersions of pure and mixed phospholipids. However, several reports have questioned the validity of the phase identifications thus achieved. In this work we review the correlation between phase determinations by 3~P-NMR and small-angle X-ray diffraction. It is demonstrated that the correlation is excellent, supporting the general utility of the 3~P-NMR method.

📜 SIMILAR VOLUMES

Phospholipid profile of the human brain:

Phospholipid profile of the human brain: 31P NMR spectroscopic study

✍ Ingrid L. Kwee; Tsutomu Nakada 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 238 KB

Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, sphingomyelin, and ethanolamine plasmalogen represent the six most abundant phospholipids of brain cell membrane. The ratio of the phospholipid contents (phospholipid profile) of the brain is remarkably consiste

31P NMR measurements of the effects of u

31P NMR measurements of the effects of unsaturated fatty acids on cellular phospholipid metabolism

✍ Helen Gillham; Kevin M. Brindle 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 815 KB

## Abstract ^31^P NMR measurements on extracts prepared from a variety of cultured mammalian cell lines and primary rat hepatocytes have shown changes in the levels of several phospholipid metabolites after incubation of cells with unsaturated fatty acids. These data suggest a possible link between

31P NMR spectroscopy of blood plasma: de

31P NMR spectroscopy of blood plasma: determination and quantification of phospholipid classes in patients with renal cell carcinoma

✍ F. Süllentrop; D. Moka; S. Neubauer; G. Haupt; U. Engelmann; J. Hahn; H. Schicha 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 159 KB

## Abstract Advanced renal cell carcinoma (RCC) has a poor prognosis and is characterized by an unpredictable clinical course. The aim of this study was to assess the systemic phospholipid distribution as a possible marker of tumor stage and tumor spread beyond the kidney. To this end, the effect o

The 31P-NMR Spectroscopic Determination

The 31P-NMR Spectroscopic Determination of the Enantiomeric Excess of Unprotected Amino Acids

✍ Ron Hulst; Prof. Dr. Ben L. Feringa; Dr. N. Koen de Vries 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 240 KB 👁 2 views

Determination of saturation factors in 3

Determination of saturation factors in 31P NMR spectra of the developing human brain

✍ Rolf Gruetter; Christoph Fusch; Ernst Martin; Chris Boesch 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 525 KB

## Abstract In order to assess the influence of longitudinal relaxation on previously reported variations in ^31^P NMR signals during brain development, we used an accelerated two‐point technique to determine __T__^1^ at 2.35 Tesla in 8 min. Comparison between 10 normal neonates (age range 37–46 we

31P NMR analysis of phospholipids in cru

31P NMR analysis of phospholipids in crude extracts from different sources: improved efficiency of the solvent system

✍ Nicola Culeddu; Marco Bosco; Renato Toffanin; Piero Pollesello 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 101 KB 👁 2 views

Crude lipid extracts from di †erent tissues were analysed by 31P NMR spectroscopy in a mixture of triethylamine, dimethylformamide and guanidinium chloride. Higher dispersion of the 31P NMR signals and better reproducibility of the chemical shifts were achieved with respect to the spectra acquired i