Asphalt emulsions: experimental study of the cationic surfactant adsorption at the asphalt-water interface

2007 ◽  
pp. 106-111 ◽  
Author(s):  
J. E. Poirier ◽  
M. Bourrel ◽  
P. Castillo ◽  
C. Chambu ◽  
M. Kbala
Keyword(s):  
Experimental Study ◽  
Cationic Surfactant ◽  
Surfactant Adsorption ◽  
Water Interface ◽  
Asphalt Emulsions

From Surface Tension to Molecular Distribution: Modeling Surfactant Adsorption at the Air–Water Interface

Langmuir ◽  
2021 ◽  
Vol 37 (7) ◽  
pp. 2237-2255 ◽  
Author(s):  
Mengsu Peng ◽  
Timothy T. Duignan ◽  
Cuong V. Nguyen ◽  
Anh V. Nguyen
Keyword(s):  
Surface Tension ◽  
Surfactant Adsorption ◽  
Water Interface ◽  
Molecular Distribution ◽  
Distribution Modeling ◽  
Air Water Interface

Toward a Microscopic Model of Light Absorbing Dissolved Organic Compounds in Aqueous Environments: Theoretical and Experimental Study

2021 ◽  
Author(s):  
Natalia V. Karimova ◽  
Michael R Alves ◽  
Man Luo ◽  
Vicki Grassian ◽  
Robert Benny Gerber
Keyword(s):  
Experimental Study ◽  
Organic Compounds ◽  
Water Systems ◽  
Microscopic Model ◽  
Water Interface ◽  
Marine Environments ◽  
Macromolecular Systems ◽  
Aqueous Environments ◽  
Air Water Interface ◽  
Dissolved Organic Compounds

Water systems often contain complex macromolecular systems that absorb light. In marine environments, these light absorbing components are often at the air-water interface and can participate in the chemistry of...

Dynamic and mechanical evolution of an oil-water interface during bacterial biofilm formation

Soft Matter ◽  
2021 ◽  
Author(s):  
David P. Rivas ◽  
Nathan D. Hedgecock ◽  
Kathleen J Stebe ◽  
Robert L Leheny
Keyword(s):  
Experimental Study ◽  
Particle Tracking ◽  
Biofilm Formation ◽  
Bacterial Biofilm ◽  
Water Interface ◽  
Mechanical Evolution ◽  
Oil Water

We present an experimental study combining particle tracking, active microrheology, and differential dynamic microscopy (DDM) to investigate the dynamics and rheology of an oil-water interface during biofilm formation by the...

The Displacement of Preadsorbed Protein with a Cationic Surfactant at the Hydrophilic SiO2−Water Interface

2001 ◽  
Vol 105 (38) ◽  
pp. 9331-9338 ◽  
Author(s):  
R. J. Green ◽  
T. J. Su ◽  
J. R. Lu ◽  
J. R. P. Webster
Keyword(s):  
Cationic Surfactant ◽  
Water Interface

Aggregation behaviors of SDBSs at oil/water interface: Theoretical and experimental study

2019 ◽  
Vol 730 ◽  
pp. 562-567 ◽  
Author(s):  
Xiaolin Wu ◽  
Zhaowei Hou ◽  
Guopeng Wu ◽  
Jichao Sun ◽  
Liqiang Zheng
Keyword(s):  
Experimental Study ◽  
Water Interface ◽  
Aggregation Behaviors ◽  
Oil Water

Phosphocholine reverses inhibition of pulmonary surfactant adsorption caused by C-reactive protein

1995 ◽  
Vol 269 (4) ◽  
pp. L492-L497 ◽  
Author(s):  
T. M. McEachren ◽  
K. M. Keough
Keyword(s):  
Pulmonary Surfactant ◽  
Water Soluble ◽  
Molar Ratio ◽  
Surfactant Adsorption ◽  
Dependent Manner ◽  
Water Interface ◽  
C Reactive Protein ◽  
Molar Ratios ◽  
Reactive Protein ◽  
Air Water Interface

The influence of the acute inflammatory phase protein human C-reactive protein (CRP) on the adsorption of porcine pulmonary surfactant from a subphase into an air-water interface has been investigated. CRP was shown to detract from the ability of surfactant to rapidly adsorb to the air-water interface at a molar ratio of 0.03:1 (protein:phospholipid) (weight ratio, 0.5:1). On a weight basis, CRP was found to be more effective than fibrinogen at reducing the adsorption rate of surfactant. The effect of CRP required the presence of calcium and was reversed by the addition of phosphocholine in a concentration-dependent manner. The inhibition of surfactant adsorption by CRP was effectively eliminated by the addition of phosphocholine at a molar ratio of 300:1 (phosphocholine:CRP), but it was not diminished by the addition of identical molar ratios of o-phosphoethanolamine or DL-alpha-glycerophosphate at the same molar ratios. These data suggest that the potent inhibition of surfactant adsorption by CRP is primarily a result of a specific interaction between CRP and the phosphocholine headgroup of surfactant lipids in the subphase and that it can be reversed by the water-soluble CRP ligand, phosphocholine.

Preparation of a new lignin-based anionic/cationic surfactant and its solution behaviour

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2441-2448 ◽  
Author(s):  
Mingsong Zhou ◽  
Wenli Wang ◽  
Dongjie Yang ◽  
Xueqing Qiu
Keyword(s):  
Surface Tension ◽  
Cationic Surfactant ◽  
Anionic Surfactant ◽  
Water Interface ◽  
Air Water Interface ◽  
Solution Behaviour

The lignin-based cationic/anionic surfactant CA-SLs have a stronger ability to lower the surface tension at the air/water interface compared with SL–PEG, but a weaker one than CTAB.

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