Search results for "Air water"

Behenic Acid as a Structural Model for Fatty Acid Monolayers at the Air/Water Interface: An X-Ray Diffraction Study

1992

We present an X-ray diffraction study of behenic (docosanoic) acid films at the air/water interface. Analysis of the rod profiles parallel and perpendicular to the surface provides detailed information on the unit cells of five different phases.

Growth of large liquid crystalline domains of phospholipids at air-water interfaces

1990

Abstract The fusion of condensed phase domains in a fluid environment in monolayers is studied. A system of electrodes permits the non-invasive and predetermined movement of single domains while the film is observed by fluorescence microscopy. Two domains fuse when they are brought into contact with special positions of their borderlines. The experiment yields information about the molecular structure of the domains and allows us to fabricate very large domains. The equilibrium size is estimated and verified.

Polyelectrolyte Brushes Grafted at the Air/Water Interface

1997

A new approach for the study of grafted polyelectrolytes is investigated:  monolayers at the air/water interface of block copolymers consisting of a liquid hydrophobic and a polyelectrolyte block. ...

Phospholipid and phospholipid-protein monolayers at the air/water interface.

1990

Ellipsometric study of the physical states of phosphatidylcholines at the air-water interface

1990

Etude des couches monomoleculaires de dimyristoylphosphatidylcholine, de dipalmitoylphosphatidylcholine, de distearoyl phosphatidylcholine, de diarachidoylphosphatidylcholine a l'interface air/eau

Spectroscopic studies of the stability of monolayers of 2-docosylamino-5-nitropyridine at the air/water interface

1991

Monolayers of 2-docosylamino-5-nitropyridine (DCANP) at the air/water interface were investigated by UV/Vis spectroscopy. The combination of this method with the classic constant-area relaxation technique yields insight into the longtime stability and the collapse behavior of monolayers. We have demonstrated that monolayers of DCANP are certainly stable under standard deposition conditions. At surface pressures above 20 mN/m monolayer instabilities lead to the formation of a three-dimensional head-to-head multilayered structure.

Monolayers of rod-shaped and disc-shaped liquid crystalline compounds at the air-water interface

2008

Calamitic (rod-shaped) and discotic (disc-shaped) thermotropic liquid crystalline (LC) compounds were spread at the air-water interface, and their ability to form monolayers was studied. The calamitic LCs investigated were found to form monolayers which behave analogously to conventional amphiphiles such as fatty acids. The spreading of the discotic LCs produced monolayers as well, but with a behaviour different from classical amphiphiles. The areas occupied per molecule are too small to allow the contact of all hydrophilic groups with the water surface and the packing of all hydrophobic chains. Various molecular arrangements of the discotics at the water surface to fit the spreading data a…

Hydrophilic/Hydrophobic Nanostripes in Lipopolymer Monolayers

2000

Structural Characterization of Monolayers at the air-water interface

1991

Specific Protein Docking to Chelator Lipid Monolayers Monitored by FT-IR Spectroscopy at the Air–Water Interface

1996