Results 231 to 240 of about 128,289 (259)

Interactions between a Polystyrene Particle and Hydrophilic and Hydrophobic Surfaces in Aqueous Solutions

Langmuir, 2008
The interaction between a colloidal polystyrene particle mounted on an AFM cantilever and a hydrophilic and a hydrophobic surface in aqueous solution is investigated. Despite the apparent simplicity of these two types of systems a variety of different types of interactions are observed.
Thormann, Esben, Simonsen, Adam C., Hansen, Per L., Mouritsen, Ole G.   +3 more
openaire   +4 more sources

Interaction Forces for Symmetric Hydrophilic and Hydrophobic Systems in Aqueous Isopropanol Solutions

Langmuir, 2010
Interaction force measurements were performed for a silica-silica hydrophilic system and for a silanated silica-silanated silica hydrophobic system using the atomic force microscopy colloidal probe technique. The influence of the solution composition on interaction forces was investigated.
Lukasz, Hupka, Jakub, Nalaskowski, Jan D, Miller   +2 more
openaire   +2 more sources

Structure of Natural Polyelectrolyte Solutions: Role of the Hydrophilic/Hydrophobic Interaction Balance

Langmuir, 2009
A method allowing the evaluation of the solvophilic/solvophobic character of polyelectrolytes from their conformation in solution is discussed. Analyzed systems are salt-free aqueous solutions of natural copolysaccharides with controlled chemical structures. Small-angle X-ray scattering diagrams revealed their conformation by the "polyelectrolyte peak".
Popa-Nita, Simina, Rochas, Cyrille, David, Laurent, Domard, Alain   +3 more
openaire   +3 more sources

Nonfunctionalized Polydimethyl Siloxane Superhydrophobic Surfaces Based on Hydrophobic−Hydrophilic Interactions

Langmuir, 2011
Superhydrophobic surfaces based on polydimethyl siloxane (PDMS) were fabricated using a 50:50 PDMS-poly(ethylene glycol) (PEG) blend. PDMS was mixed with PEG, and incomplete phase separation yielded a hierarchic structure. The phase-separated mixture was annealed at a temperature close to the crystallization temperature of the PEG.
Georgios, Polizos, Enis, Tuncer, Xiaofeng, Qiu, Tolga, Aytuǧ, Michelle K, Kidder, Jamie M, Messman, Isidor, Sauers   +6 more
openaire   +2 more sources

Specific Ion Effects on the Interaction of Hydrophobic and Hydrophilic Self-Assembled Monolayers

Langmuir, 2018
Interactions between mineral surfaces and organic molecules are fundamental to life processes. The presence of cations in natural environments can change the behavior of organic compounds and thus alter the mineral-organic interfaces. We investigated the influence of Na+, Mg2+, Ca2+, Sr2+, and Ba2+ on the interaction between two models, self-assembled ...
T. Rios-Carvajal, N. R. Pedersen, N. Bovet, S. L. S. Stipp, T. Hassenkam   +4 more
openaire   +3 more sources

Computational Investigation of Interaction between Nanoparticles and Membranes: Hydrophobic/Hydrophilic Effect

The Journal of Physical Chemistry B, 2008
Understanding the interactions of nanoparticles (NPs) with biological system, especially interactions with cell membranes, is critical for the rational design of nanocarrier agents and drug delivery systems. Here, we have performed coarse-grained molecular dynamics simulations aimed at the effect of hydrophilic/hydrophobic properties of nanoparticles ...
Yang, Li, Xin, Chen, Ning, Gu
openaire   +2 more sources

Role of hydrophobic and hydrophilic forces in peptide-protein interaction: New advances

Peptides, 1995
A considerable part of important biological processes is governed by the noncovalent association of peptides and proteins. Various types of intermolecular forces may be involved in the formation of these molecular assemblies. This review gives a brief account of the physicochemical bases of interactive forces, with special emphasis on their impact on ...
T, Cserháti, M, Szögyi
openaire   +2 more sources

Hydrophobic–Hydrophilic Interactions of Water with Alkanethiolate Chains from First‐Principles Calculations

ChemPhysChem, 2005
AbstractThe interaction of water with alkanethiolate chains is studied from first principles. A detailed analysis is performed by optimizing the structure of small water clusters, one‐dimensional water chains, and ordered and disordered thin water layers adsorbed on hydroxyl(OH)‐ and methyl(CH3)‐terminated alkanethiol monolayers.
SILVESTRELLI, PIER LUIGI, ANCILOTTO, FRANCESCO, TOIGO, FLAVIO, SBRACCIA C, IKEDA T, BOERO M.   +5 more
openaire   +2 more sources

Water–surface interactions and definitions for hydrophilicity, hydrophobicity and superhydrophobicity

Pure and Applied Chemistry, 2015
Abstract Hydrophilicity and hydrophobicity are among the most important concepts in surface chemistry. Samuel and co-workers reported the measure of interactive forces between water and 20 different surfaces using the microbalance technique.
openaire   +1 more source

Interaction of water molecules with hydrophilic and hydrophobic surfaces of colloid particles

Journal of Water Chemistry and Technology, 2015
The hydrophobicity of talc basal surface and the hydrophilicity of silica gel surface have been considered. Ab initio calculations of energy and geometry of microclusters formed by water molecules on active centers of ideal basal surface of talc and silica gel surface were carried out.
Yu. I. Tarasevich, E. V. Aksenenko
openaire   +1 more source