Solvent accessibility and hydrophobicity in the adsorption of alkylammonium cations at air/water and Hg/water interfaces. Part 1. Behavior at the air/water interface in relation to hydration properties

1981 ◽  
Vol 59 (13) ◽  
pp. 1978-1986 ◽  
Author(s):  
R. Bennes ◽  
B. E. Conway
Keyword(s):  
Surface Potential ◽  
Hydrophobic Interactions ◽  
Solvent Accessibility ◽  
Water Interface ◽  
Ion Distribution ◽  
Progressive Change ◽  
Hydration Properties ◽  
Air Water Interface ◽  
Electrostatic And Hydrophobic Interactions

By means of adsorption and surface-potential studies on a series of R4−nN+Hn perchlorates at the air/water interface, the role of hydrophobic and hydrophilic interaction in the adsorption and ion distribution of these salts near the air/water interface is examined. While the adsorption of the alkylamine ions increases as n decreases from three to zero, inclusive, the surface-potential change accompanying the adsorption decreases. This effect is interpreted in terms of opposing hydrophilic, electrostatic and hydrophobic interactions between the organic ion and water near the liquid surface, leading to a progressive change of double-layer ion distribution. In Part II, comparative studies of the same series of compounds at the Hg/water interface are reported.

Solvent accessibility and hydrophobicity in the adsorption of alkylammonium cations at air/water and Hg/water interfaces. Part II. Behavior at the Hg/water interface in relation to hydrophobic interactions

1981 ◽  
Vol 59 (13) ◽  
pp. 1987-1997 ◽  
Author(s):  
B. E. Conway ◽  
F. Rocheleau
Keyword(s):  
Aqueous Solutions ◽  
Surface Potential ◽  
Surface Pressure ◽  
Hydrophobic Interactions ◽  
Solvent Accessibility ◽  
Adsorption Behavior ◽  
Water Interface ◽  
3 Dimensional ◽  
Electrode Potentials ◽  
Air Water Interface

The adsorption behavior of a series of n-propylammonium ions in which the N+ center has varying accessibility to the solvent, and hence the ions exhibit varying hydrophobicity, is examined at the Hg/H2O interface at various electrode potentials. With the most hydrophobic ion, (n-Pr)4N+, attractive interactions arise in the interphase. An attempt is made to explain this behavior in terms of Gurney hydration co-sphere sharing effects which are significant in 3-dimensional aqueous solutions of R4N+ salts.The surface pressure behavior and Esin and Markov effects are also evaluated.Comparisons are made with the adsorption and surface potential results reported in Part I for the air/water interface.

Critical role of nanocomposites at air–water interface: From aqueous foams to foam-based lightweight functional materials

2021 ◽  
Vol 416 ◽  
pp. 129121
Author(s):  
Kai Yu ◽  
Bin Li ◽  
Huagui Zhang ◽  
Zhentao Wang ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Critical Role ◽  
Functional Materials ◽  
Water Interface ◽  
Aqueous Foams ◽  
Air Water Interface

Specific ion adsorption at the air/water interface: The role of hydrophobic solvation

2009 ◽  
Vol 479 (4-6) ◽  
pp. 173-183 ◽  
Author(s):  
Dominik Horinek ◽  
Alexander Herz ◽  
Lubos Vrbka ◽  
Felix Sedlmeier ◽  
Shavkat I. Mamatkulov ◽  
...  
Keyword(s):  
Ion Adsorption ◽  
Water Interface ◽  
Air Water Interface ◽  
Specific Ion Adsorption ◽  
Hydrophobic Solvation

scholarly journals Cholesterol provides nonsacrificial protection of membrane lipids from chemical damage at air–water interface

2018 ◽  
Vol 115 (13) ◽  
pp. 3255-3260 ◽  
Author(s):  
Xinxing Zhang ◽  
Kevin M. Barraza ◽  
J. L. Beauchamp
Keyword(s):  
Lipid Membranes ◽  
Membrane Lipids ◽  
Oh Radicals ◽  
Significant Finding ◽  
Water Interface ◽  
Unsaturated Lipids ◽  
Air Water Interface ◽  
Liquid Ordered ◽  
Ester Linkage

The role of cholesterol in bilayer and monolayer lipid membranes has been of great interest. On the biophysical front, cholesterol significantly increases the order of the lipid packing, lowers the membrane permeability, and maintains membrane fluidity by forming liquid-ordered–phase lipid rafts. However, direct observation of any influence on membrane chemistry related to these cholesterol-induced physical properties has been absent. Here we report that the addition of 30 mol % cholesterol to 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) or 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1′-rac-glycerol) (POPG) monolayers at the air–water interface greatly reduces the oxidation and ester linkage cleavage chemistries initiated by potent chemicals such as OH radicals and HCl vapor, respectively. These results shed light on the indispensable chemoprotective function of cholesterol in lipid membranes. Another significant finding is that OH oxidation of unsaturated lipids generates Criegee intermediate, which is an important radical involved in many atmospheric processes.

scholarly journals Surface Potential of the Air/Water Interface

2020 ◽  
Vol 69 (6) ◽  
pp. 519-528 ◽  
Author(s):  
Cuong V. Nguyen ◽  
Hiromichi Nakahara ◽  
Chi M. Phan
Keyword(s):  
Surface Potential ◽  
Water Interface ◽  
Air Water Interface

scholarly journals Surface Potential of MIBC at Air/Water Interface: a Molecular Dynamics Study

2012 ◽  
Vol 10 (0) ◽  
pp. 437-440 ◽  
Author(s):  
C. M. Phan ◽  
H. Nakahara ◽  
O. Shibata ◽  
Y. Moroi ◽  
C. V. Nguyen ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Surface Potential ◽  
Water Interface ◽  
Air Water Interface

Organization of Microgels at the Air–Water Interface under Compression: Role of Electrostatics and Cross-Linking Density

Langmuir ◽  
2017 ◽  
Vol 33 (32) ◽  
pp. 7968-7981 ◽  
Author(s):  
Christine Picard ◽  
Patrick Garrigue ◽  
Marie-Charlotte Tatry ◽  
Véronique Lapeyre ◽  
Serge Ravaine ◽  
...  
Keyword(s):  
Cross Linking ◽  
Water Interface ◽  
Air Water Interface

scholarly journals Peripheral myelin of Xenopus laevis: Role of electrostatic and hydrophobic interactions in membrane compaction

2008 ◽  
Vol 162 (1) ◽  
pp. 170-183 ◽  
Author(s):  
XiaoYang Luo ◽  
Jana Cerullo ◽  
Tamara Dawli ◽  
Christina Priest ◽  
Zaid Haddadin ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Hydrophobic Interactions ◽  
Electrostatic And Hydrophobic Interactions
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