DNA Alignment at Cationic Lipid Monolayers at the Air/Water Interface

2004 ◽  
Vol 37 (10) ◽  
pp. 3865-3873 ◽  
Author(s):  
Christian Symietz ◽  
Marc Schneider ◽  
Gerald Brezesinski ◽  
Helmuth Möhwald
Keyword(s):  
Cationic Lipid ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface ◽  
Dna Alignment

scholarly journals Nanoparticle interaction with model lung surfactant monolayers

2009 ◽  
Vol 7 (suppl_1) ◽  
Author(s):  
Rakesh Kumar Harishchandra ◽  
Mohammed Saleem ◽  
Hans-Joachim Galla
Keyword(s):  
Surface Properties ◽  
Self Assembly ◽  
Current Knowledge ◽  
Surface Film ◽  
Lung Surfactant ◽  
Hydrophobic Surface ◽  
Surface Pattern ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface

One of the most important functions of the lung surfactant monolayer is to form the first line of defence against inhaled aerosols such as nanoparticles (NPs), which remains largely unexplored. We report here, for the first time, the interaction of polyorganosiloxane NPs (AmorSil20: 22 nm in diameter) with lipid monolayers characteristic of alveolar surfactant. To enable a better understanding, the current knowledge about an established model surface film that mimics the surface properties of the lung is reviewed and major results originating from our group are summarized. The pure lipid components dipalmitoylphosphatidylcholine and dipalmitoylphosphatidylglycerol have been used to study the biophysical behaviour of their monolayer films spread at the air–water interface in the presence of NPs. Film balance measurements combined with video-enhanced fluorescence microscopy have been used to investigate the formation of domain structures and the changes in the surface pattern induced by NPs. We are able to show that NPs are incorporated into lipid monolayers with a clear preference for defect structures at the fluid–crystalline interface leading to a considerable monolayer expansion and fluidization. NPs remain at the air–water interface probably by coating themselves with lipids in a self-assembly process, thereby exhibiting hydrophobic surface properties. We also show that the domain structure in lipid layers containing surfactant protein C, which is potentially responsible for the proper functioning of surfactant material, is considerably affected by NPs.

Interaction of a double hydrophilic block copolymer with lipid monolayers at the air–water interface

2014 ◽  
Vol 550 ◽  
pp. 621-629 ◽  
Author(s):  
Rute I.S. Romão ◽  
José M.G. Martinho ◽  
Amélia M.P.S. Gonçalves da Silva
Keyword(s):  
Block Copolymer ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface

Interaction of Myelin Basic Protein with Myelin-like Lipid Monolayers at Air–Water Interface

Langmuir ◽  
2018 ◽  
Vol 34 (21) ◽  
pp. 6095-6108 ◽  
Author(s):  
Katharina Widder ◽  
Jennica Träger ◽  
Andreas Kerth ◽  
George Harauz ◽  
Dariush Hinderberger
Keyword(s):  
Myelin Basic Protein ◽  
Basic Protein ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface

Polymer Adsorption Induced Pattern Formation in Lipid Monolayers Spread at the Air−Water Interface

Langmuir ◽  
1998 ◽  
Vol 14 (9) ◽  
pp. 2582-2584 ◽  
Author(s):  
Masami Kawaguchi ◽  
Midori Yamamoto ◽  
Tadaya Kato
Keyword(s):  
Pattern Formation ◽  
Polymer Adsorption ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Air Water Interface

Two-dimensional crystallization of proteins on lipid monolayers at the air–water interface and transfer to an electron microscopy grid

1999 ◽  
Vol 196 (2-4) ◽  
pp. 456-470 ◽  
Author(s):  
Alain Brisson ◽  
Wilma Bergsma-Schutter ◽  
Frank Oling ◽  
Olivier Lambert ◽  
Ilya Reviakine
Keyword(s):  
Electron Microscopy ◽  
Lipid Monolayers ◽  
Water Interface ◽  
Two Dimensional ◽  
Air Water Interface ◽  
Electron Microscopy Grid
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