Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Arsov, Z; Quaroni, L (2007)
  Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy
  in Chemistry and physics of lipids (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Arsov, Z; Quaroni, L (literal)

Pagina inizio

• 35 (literal)

Pagina fine

• 48 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 150 (literal)

Rivista

• Chemistry and physics of lipids (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Jozef Stefan Inst, Biophys Lab, Ljubljana 1000, Slovenia; CNR, TASC INFM, I-34012 Trieste, Italy; Sincrotrone Trieste, I-34012 Trieste, Italy (literal)

Titolo

• Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy (literal)

Abstract

• By using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and curve fitting we have examined temperature dependence and composition dependence of the shape of the carbonyl band in phosphatidylcholine/cholesterol model membranes. Membranes were hydrated either in excess water or in excess deuterated water. The studied binary mixtures exhibit different lipid phases at appropriate temperature and amount of cholesterol, among them also the so-called liquid-ordered phase. The results confirm that cholesterol has a significant indirect influence on the carbonyl band through conformational and hydration effects. This influence was interpreted in view of the known temperature composition phase diagrams for inspected binary mixtures. In addition, direct interaction was observed, which could point to the presence of hydrogen bond between cholesterol and carbonyl group. This direct interaction, though weak, might play at least a partial role in the stabilization of cholesterol-rich lipid domains in model and biological membranes. (C) 2007 Elsevier Ireland Ltd. All rights reserved. (literal)

Prodotto di

• Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.001) (Modulo)

Autore CNR

• ZORAN ARSOV (Unità di personale esterno)

Insieme di parole chiave

• Parole chiave di "Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• ZORAN ARSOV (Unità di personale esterno)

Prodotto

• Proprieta' elettroniche e strutturali di sistemi a bassa dimensionalita' (MD.P06.016.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Chemistry and physics of lipids (Rivista)

Insieme di parole chiave di

• Parole chiave di "Direct interaction between cholesterol and phosphatidylcholines in hydrated membranes revealed by ATR-FTIR spectroscopy" (Insieme di parole chiave)