Kinetics of bromine transfer across Langmuir monolayers of phosphatidylethanolamines at the water/air interface

2003 ◽  
Vol 5 (18) ◽  
pp. 3979 ◽  
Author(s):  
Jie Zhang ◽  
Patrick R. Unwin
Keyword(s):  
Langmuir Monolayers ◽  
Air Interface ◽  
Kinetics Of

Langmuir Monolayers ofp-(5‘-m-Terphenylyl)benzoic Acid and Its 2‘-Methyl Derivative at the Water/Air Interface

Langmuir ◽  
1996 ◽  
Vol 12 (20) ◽  
pp. 4966-4968 ◽  
Author(s):  
Jan Czapkiewicz ◽  
Patrycja Dynarowicz ◽  
Piotr Milart
Keyword(s):  
Benzoic Acid ◽  
Langmuir Monolayers ◽  
Methyl Derivative ◽  
Air Interface

A quantitative study of enhanced drying flux from a narrow liquid–air interface of colloidal suspensions during directional drying

2018 ◽  
Vol 20 (13) ◽  
pp. 8935-8942 ◽  
Author(s):  
Kohei Abe ◽  
Susumu Inasawa
Keyword(s):  
Quantitative Study ◽  
Colloidal Suspension ◽  
Colloidal Suspensions ◽  
Interfacial Area ◽  
Formation Kinetics ◽  
Air Interface ◽  
Kinetics Of

Drying flux changes by the drying interfacial area of a colloidal suspension that affects the formation kinetics of particulate films.

Energetics and structures of the tilted phases of fatty acid Langmuir monolayers

2020 ◽  
Vol 22 (21) ◽  
pp. 12092-12103
Author(s):  
Óscar Toledano ◽  
Miguel A. Rubio ◽  
Óscar Gálvez
Keyword(s):  
Fatty Acid ◽  
Langmuir Monolayers ◽  
Dimensional Structure ◽  
Amphiphilic Molecules ◽  
Air Interface

Langmuir monolayers are monomolecular deep films composed of amphiphilic molecules which are typically confined to a water/air interface in a bi-dimensional structure.

study on hydrolytic kinetics of Langmuir monolayers of biodegradable polylactide derivatives

2003 ◽  
Vol 11 (6) ◽  
pp. 476-480 ◽  
Author(s):  
Jin-Kook Lee ◽  
Jin-Ho Ryou ◽  
Won-Ki Lee ◽  
Chan-Young Park ◽  
Sang-Bo Park ◽  
...  
Keyword(s):  
Langmuir Monolayers ◽  
Kinetics Of

scholarly journals Adsorption kinetics of surfactant molecules at a liquid–air interface

1988 ◽  
Vol 89 (5) ◽  
pp. 3386-3387 ◽  
Author(s):  
Th. Rasing ◽  
T. Stehlin ◽  
Y. R. Shen ◽  
M. W. Kim ◽  
P. Valint
Keyword(s):  
Adsorption Kinetics ◽  
Air Interface ◽  
Kinetics Of

Hydrolytic kinetics of langmuir monolayers of enantiomeric poly(lactide)s

2006 ◽  
Vol 6 (4) ◽  
pp. 735-738 ◽  
Author(s):  
Eun Young Kim ◽  
Jin-Kook Lee ◽  
Won-Ki Lee
Keyword(s):  
Langmuir Monolayers ◽  
Kinetics Of

scholarly journals The molecular structure and surface accumulation dynamics of hyaluronan at the water/air interface

2021 ◽  
Author(s):  
Carolyn J. Moll ◽  
Giulia Giubertoni ◽  
Jan Versluis ◽  
Gijsje H. Koenderink ◽  
Huib J. Bakker
Keyword(s):  
Molecular Weight ◽  
Electrostatic Interactions ◽  
Inflammatory Responses ◽  
Strong Dependence ◽  
Aqueous Media ◽  
Interfacial Water ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Air Interface ◽  
Kinetics Of

AbstractHyaluronan is a biopolymer that is essential for many biological processes in the human body, like the regulation of tissue lubrication and inflammatory responses. Here we study the behavior of hyaluronan at aqueous surfaces using heterodyne-detected vibrational sum-frequency generation spectroscopy (HD-VSFG). We find that high-molecular weight hyaluronan (>1 MDa) does not come to the surface, even hours after addition of the polymer to the aqueous solution. In contrast, low-molecular weight hyaluronan (~150 kDa) gradually covers the water-air interface within hours, leading to a negatively charged surface and a reorientation of the interfacial water molecules. This strong dependence on the polymer molecular weight can be explainend from entanglements of the hyaluronan polymers. We also find that the migration kinetics of hyaluronan in aqueous media shows an anomalous dependence on the pH of the solution, which can be explained from the interplay of hydrogen-bonding and electrostatic interactions of the hyaluronan polymers.

scholarly journals Characterization of Monoolein Langmuir Monolayers Spread at The Salt Solution/Air Interface

2021 ◽  
Author(s):  
Balaji Sopanrao Dhopte ◽  
V. N. Lad
Keyword(s):  
Physicochemical Properties ◽  
Molecular Layer ◽  
Langmuir Monolayers ◽  
Langmuir Monolayer ◽  
Compression Isotherm ◽  
Water Interface ◽  
Air Interface ◽  
Special Groups ◽  
Air Water Interface ◽  
The Difference

Abstract The Langmuir monolayer is commonly described at interfaces for an insoluble homogenous single molecular layer. Langmuir monolayers have demonstrated various issues regarding soft matters and complex fluids by forming ideal uniform two-dimensional structures over the air-water interface. This monolayer has advantages for evaluating physicochemical properties at interfaces and, for the insoluble molecules, can be applied simultaneously to the different interaction occurrences at interfaces. For this experiment, monoolein lipid was used as a spreading solvent to create a Langmuir monolayer, and five different types of salt sub-phases were applied for the physicochemical properties’ interaction studies. On the air-water interface, the surface properties of monoolein lipids were investigated for interfacial phase behaviors, using the Wilhelmy plate pressure sensor technique compression isotherm (π-A). Data and analysis were also contributed to the correspondent, precise verification of physical state behavior with the surface pressure measurements on the interfaces through the compressibility modulus and the elasticity modulus parameters on the surface. In the experiments, the interfacial activity of the monoolein lipids was found to be stable on the aqueous sub-phase, while the area per molecule over the interface did not have much impact as a sub-phase with a change in salts. The repeatability and reproducibility of tests were affirmed by the difference in the Langmuir monolayer’s particular phase transition orientation behavior and the stability of colloidal lipid dispersion. However, Langmuir monolayer formation contributes to several special groups being restructured and is found to be a more remarkable natural process for their attractive organic dynamic structural properties over the interface, but the interfacial molecular dynamics have proven to be difficult to calculate.

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