Ultrafast dynamics at solid/liquid interfaces as investigated by photothermal spectroscopy

2001 ◽  
Vol 73 (10) ◽  
pp. 1613-1623 ◽  
Author(s):  
Tsuguo Sawada
Keyword(s):  
Materials Science ◽  
Science And Technology ◽  
Solid Surfaces ◽  
Ultrafast Dynamics ◽  
Nanoscale Materials ◽  
Liquid Interfaces ◽  
Photothermal Spectroscopy ◽  
Solid Liquid

Among the recent topics of photothermal (PT) applications of lasers, we focus on ultrafast (<=1.0 ns) photothermal/photoacoustic (PT/PA) phenomena occurring at interfaces, which play important roles in nanoscale materials science and technology. Here, we describe our recently developed novel PT techniques called transient reflecting grating (TRG) spectrometries. These techniques have been applied to the studies of solid surfaces, film substrates, and solid/liquid interfaces.

Adsorption of surfactants at solid/liquid interfaces

Surfactants ◽  
2019 ◽  
pp. 130-155
Author(s):  
Bob Aveyard
Keyword(s):  
Strong Influence ◽  
Langmuir Equation ◽  
Solid Surfaces ◽  
Polymeric Surfactant ◽  
Fluid Interfaces ◽  
Liquid Interfaces ◽  
Free Energies ◽  
Micellar Aggregates ◽  
Diffuse Part ◽  
Solid Liquid

The physical properties of solid/liquid interfaces are more diverse than those of liquid/fluid interfaces, and consequently the interactions giving rise to adsorption of surfactant or polymeric surfactant are more varied. Solid surfaces can be either hydrophilic or hydrophobic, the former being water-wetted and containing polar or ionogenic sites. Electrical charge at the solid surface is neutralized by ions in the inner and outer Helmholtz planes and in the diffuse part of the electrical double layer. Surface charge has a strong influence on adsorption of ionic surfactants. Standard free energies of surfactant adsorption are obtained by use of an appropriate adsorption isotherm such as the Stern–Langmuir equation. Micellar aggregates of various shapes and sizes can also form at solid/liquid interfaces.

scholarly journals Surface forces measurement for materials science

2019 ◽  
Vol 91 (4) ◽  
pp. 707-716 ◽  
Author(s):  
Kazue Kurihara
Keyword(s):  
Soft Matter ◽  
Materials Science ◽  
Resonance Method ◽  
Surface Force ◽  
Surface Forces ◽  
Liquid Interfaces ◽  
Science Field ◽  
Confined Liquids ◽  
History Of ◽  
Solid Liquid

Abstract This article reviews the surface forces measurement as a novel tool for materials science. The history of the measurement is briefly described in the Introduction. The general overview covers specific features of the surface forces measurement as a tool for studying the solid-liquid interface, confined liquids and soft matter. This measurement is a powerful way for understanding interaction forces, and for characterizing (sometime unknown) phenomena at solid-liquid interfaces and soft complex matters. The surface force apparatus (SFA) we developed for opaque samples can study not only opaque samples in various media, but also electrochemical processes under various electrochemical conditions. Electrochemical SFA enables us to determine the distribution of counterions between strongly bound ones in the Stern layer and those diffused in the Gouy-Chapman layer. The shear measurement is another active area of the SFA research. We introduced a resonance method, i.e. the resonance shear measurement (RSM), that is used to study the effective viscosity and lubricity of confined liquids in their thickness from μm to contact. Advantages of these measurements are discussed by describing examples of each measurement. These studies demonstrate how the forces measurement is used for characterizing solid-liquid interfaces, confined liquids and reveal unknown phenomena. The readers will be introduced to the broad applications of the forces measurement in the materials science field.

scholarly journals Solid–Liquid Interfaces: Molecular Structure, Thermodynamics, and Crystallization

MRS Bulletin ◽  
2004 ◽  
Vol 29 (12) ◽  
pp. 920-926 ◽  
Author(s):  
Mark Asta ◽  
Frans Spaepen ◽  
J. Friso van der Veen
Keyword(s):  
Materials Science ◽  
Morphological Evolution ◽  
Crystalline Solid ◽  
Liquid Interfaces ◽  
New Developments ◽  
Liquid Phases ◽  
Living Organisms ◽  
Solid Liquid ◽  
Theory And Modeling

AbstractMaterials phenomena ranging from the melting or freezing of ice to biomineralization in living organisms, to lubrication and the commercial casting of superalloys, are known to be critically influenced by molecular-scale structure and processes occurring at the interfaces between the crystalline solid and liquid phases. The properties of solid–liquid interfaces have long been a topic of intense interest in materials science, primarily because of their role in governing nucleation, growth, and morphological evolution in crystal growth from the melt or solutions.This issue of the MRS Bulletin provides an overview, highlighting new developments in experiment, theory, and modeling techniques that have led to substantial recent progress in the characterization of the molecular-level structural and thermodynamic properties of solid–liquid interfaces and their consequences for a variety of crystallization phenomena.

Tribological Properties of Associated Structures at Solid–Liquid Interfaces

2005 ◽  
Author(s):  
M. Ruths ◽  
S. Lundgren ◽  
K. Persson ◽  
A. Hillerstro¨m ◽  
K. Boschkova
Keyword(s):  
Phase State ◽  
Molecular Level ◽  
Solid Surfaces ◽  
Self Healing ◽  
Liquid Interfaces ◽  
Self Assembling ◽  
Local Fluctuations ◽  
Lubricant Films ◽  
Solid Liquid ◽  
Bulk Solutions

We have studied the friction-modifying properties of associated amphiphile structures formed at solid–liquid interfaces from bulk solutions. The mechanisms of friction at the molecular level are only partially understood, but are expected to be strongly affected by the phase state of the confined thin film, i.e., by molecular structure and ordering, and also by interactions between confined molecules and the solid surfaces. In contrast to pre-applied lubricant films, self-assembling systems present the advantage of being self-healing, so that upon local fluctuations in pressure and wear, the film may spontaneously reform.

Adsorption of Biopolymer at Solid−Liquid Interfaces. 1. Affinities of DNA to Hydrophobic and Hydrophilic Solid Surfaces

Langmuir ◽  
1999 ◽  
Vol 15 (21) ◽  
pp. 7130-7138 ◽  
Author(s):  
S. A. Gani ◽  
D. C. Mukherjee ◽  
D. K. Chattoraj
Keyword(s):  
Solid Surfaces ◽  
Liquid Interfaces ◽  
Solid Liquid
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