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Titolo:
Self-assembled films of dimyristoylphosphatidylcholine
Autore:
Lawrie, GA; Barnes, GT; Gentle, IR;
Indirizzi:
Univ Queensland, Dept Chem, Brisbane, Qld 4072, Australia Univ QueenslandBrisbane Qld Australia 4072 Brisbane, Qld 4072, Australia
Titolo Testata:
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
fascicolo: 1, volume: 155, anno: 1999,
pagine: 69 - 84
SICI:
0927-7757(19990915)155:1<69:SFOD>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-WATER-INTERFACE; AIR/WATER INTERFACE; NEUTRON REFLECTION; DIMYRISTOYL PHOSPHATIDYLCHOLINE; SPECULAR REFLECTION; VESICLE SUSPENSION; MONOLAYERS; LIPOSOMES; SURFACE; LECITHIN;
Keywords:
interfacial films; liposomes; monolayers; phosphatidylcholines; self-assembly;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Gentle, IR Univ Queensland, Dept Chem, Brisbane, Qld 4072, Australia Univ Queensland Brisbane Qld Australia 4072 ld 4072, Australia
Citazione:
G.A. Lawrie et al., "Self-assembled films of dimyristoylphosphatidylcholine", COLL SURF A, 155(1), 1999, pp. 69-84

Abstract

Self-assembled films of dimyristoylphosphatidylcholine (DMPC) have been generated at the air/water interface and examined to identify structural characteristics. Powdered lipid, small unilamellar vesicles and multilamellar vesicles have been used as precursors to form interfacial films. Lipids weretransported to the air/water interface either from the subphase dispersionor via a bridge from a remote reservoir. The isolation of the self-assembled film from the source of lipid molecules in the latter method has enabledstudies of compressional behaviour and neutron reflectivity to be carried out directly at the interface, and for films to be deposited for atomic force microscopy. It was found that the structure of a DMPC self-assembled film was highly dependent on the lipid form from which the film was derived and also on the conditions of spreading. Self-assembled films derived from powder and multilamellar liposomes had bilayer structures associated with them. In contrast, the films formed from unilamellar vesicles behaved as isolated monolayers. The structure of the film formed by self-assembly from the powder form of the lipid was related to the surface pressure to which the film had been allowed to spread before transfer from the reservoir was interrupted. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/07/20 alle ore 07:54:53