Download or read book Interfacial and Confined Water written by Ivan Brovchenko and published by Elsevier. This book was released on 2008-06-03 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water in the proximity of a surface (interfacial water) is abundant on the earth. It is involved in various physical and chemical processes and crucial for biological function. Despite numerous studies of interfacial water, systematic analysis of its properties is missing in scientific literature. This book is a first comprehensive review of experimental and simulation studies of water in various confining environments, such as hydrophilic and hydrophobic surfaces, surfaces of biomolecules, porous media, etc. Systematic analysis of interfacial and confined water is based on the firm physical ground, which accounts for variety of the thermodynamic states of water near the surface, surface phase transitions, surface critical behaviour, effect of confinement on the bulk and surface phase transitions of water, clustering and formation of a spanning hydrogen-bonded water network via percolation transition. This allows distinguishing between universal features, common for all fluids, and some specific water properties, related to intermolecular hydrogen bonds. Special attention is paid to the properties of hydration water, which covers biomolecules and enables their biological activity. This book provides readers with basic information on interfacial and confined water, which will be useful for scientists and engineers working in the fields of bioscienses, nanociences and nanotechnologies. - Comprehensive review and analysis of interfacial and confined water - Updates and informs practitioners and students on all the latest developments in the field - Written by leading scholars and industry experts

Download or read book Summary Record of the 1162nd Meeting Chamber B Held at the Palais Wilson Geneva on Tuesday 12 September 2006 written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water in Confining Geometries written by V. Buch and published by Springer Science & Business Media. This book was released on 2003-04-29 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in the field, this book gives a wide-ranging and coherent treatment of water in confining geometries. It compiles and relates interdisciplinary work on this hot topic of research important in many areas of science and technology.

Download or read book The Role of Water in Interfacial Interactions written by Adrian Perez Defante and published by . This book was released on 2016 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of water is often overlooked in interfacial phenomena, but its presence influences many interfacial processes relevant to a number of scientific disciplines. Direct force measurements have offered the most insight into underwater surface related phenomena such as adhesion, wetting, and friction, and have provided molecular descriptions to the physical interactions taking place at the contact interface. Although the insight from these experiments maybe true, there lacks direct molecular confirmation of the assertions interpreted from these force measurements. To address this, we have studied the impact of water on adhesion, friction, and wetting by using a suite of complementary surface sensitive techniques. By using non-linear sum frequency generation spectroscopy, we are able to probe surfaces at a molecular level and connect these chemical details to better understand interfacial phenomena. This thesis focuses on three studies to better understand the role of water in interfacial phenomena. For the first study, we focused on the contact of two hydrophobic surfaces in water. Here, we use surface sensitive sum frequency generation spectroscopy to directly probe the contact interface between hydrophobic poly-(dimethylsiloxane) (PDMS) and two hydrophobic surfaces (a self-assembled monolayer, OTS, and a polymer coating, PVNODC). We show that the interfacial structure for OTS and PVNODC are identical in dry contact but that they differ dramatically in wet contact. In water, the PVNODC surface partially rearranges at grain boundaries, trapping water at the contact interface leading to a 50% reduction in adhesion energy compared to OTS-PDMS contact. The Young-Dupr\'e equation, used extensively to calculate the thermodynamic work of adhesion, predicts no differences between the adhesion energy for these two hydrophobic surfaces, indicating a failure of this well-known equation when there is a heterogeneous contact.For the second study, we studied the role of water between two hydrophilic interfaces in sliding friction and adhesion. We achieve this by adsorbing cationic surfactant, cetyl trimethyl ammonium bromide (CTAB), on two hydrophobic surfaces, PDMS and a self assembled monolayer. Using surface sensitive sum frequency generation spectroscopy, we highlight a strongly coordinated ice-like water layer confined between two surfactant covered hydrophobic surfaces under hydration pressures. Such strongly coordinated water structure, that reduces the sliding friction, forms past the surfactant concentration needed for monolayer coverage. In addition, the surprising observance of a highly coordinated ice like layer of water between these two surfaces presents opportunities for developing a theoretical framework to the molecular behavior of confined water.For the third study, we investigate underwater adhesion and friction for a hydrophobic lens in contact with plasma treated surfaces of different wettability. From these measurements, we aimed to guide the interfacial design of underwater adhesives by systematically varying the surface energy of the contact interface. We show underwater adhesion and friction is the highest between a hydrophobic lens and plasma treated surface for a water contact angle of 70 degrees.

Download or read book Interfacial Structures of Confined Air water Two phase Bubbly Flow written by and published by . This book was released on 2000 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interfacial structure of the two-phase flows is of great importance in view of theoretical modeling and practical applications. In the present study, the focus is made on obtaining detailed local two-phase parameters in the air-water bubbly flow in a rectangular vertical duct using the double-sensor conductivity probe. The characteristic wall-peak is observed in the profiles of the interracial area concentration and the void fraction. The development of the interfacial area concentration along the axial direction of the flow is studied in view of the interfacial area transport and bubble interactions. The experimental data is compared with the drift flux model with C0 = 1.35.

Download or read book Interfacial Dynamics written by Nikola Kallay and published by CRC Press. This book was released on 2000-01-03 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the theoretical foundations of the kinetics and thermodynamics of solid-liquid interfaces, as well as state-of-the-art industrial applications, this book presents information on surface and colloidal chemical processes and evaluates vital analytical tools such as atomic force microscopy, surface force apparatus measurements, and p

Download or read book Dynamics of Soft Matter written by VICTORIA GARCIA SAKAI and published by Springer Science & Business Media. This book was released on 2011-12-19 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamics of Soft Matter: Neutron Applications provides an overview of neutron scattering techniques that measure temporal and spatial correlations simultaneously, at the microscopic and/or mesoscopic scale. These techniques offer answers to new questions arising at the interface of physics, chemistry, and biology. Knowledge of the dynamics at these levels is crucial to understanding the soft matter field, which includes colloids, polymers, membranes, biological macromolecules, foams, emulsions towards biological & biomimetic systems, and phenomena involving wetting, friction, adhesion, or microfluidics. Emphasizing the complementarities of scattering techniques with other spectroscopic ones, this volume also highlights the potential gain in combining techniques such as rheology, NMR, light scattering, dielectric spectroscopy, as well as synchrotron radiation experiments. Key areas covered include polymer science, biological materials, complex fluids and surface science.

Download or read book Magnetic Resonance in Colloid and Interface Science written by J. Fraissard and published by Springer Science & Business Media. This book was released on 2002 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, 26-30 June 2001, St.Petersburg, Russia

Download or read book Magnetic Resonance in Colloid and Interface Science written by Jacques P. Fraissard and published by Springer Science & Business Media. This book was released on 1980 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA 600 2 written by and published by . This book was released on 1978 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Irrigation Return Flow Quality Abstracts written by and published by . This book was released on with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Reporting Series written by and published by . This book was released on 1978 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Irrigation Return Flow Quality Abstracts 1976 written by Gaylord V. Skogerboe and published by . This book was released on 1978 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Simulation Investigations of Property Degradation in CFRP Composite written by Lik-ho Tam and published by Springer Nature. This book was released on with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Supramolecular Nanoarchitectonics written by Katsuhiko Ariga and published by William Andrew. This book was released on 2019-02-23 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Supramolecular Nanoarchitectonics provides the latest information on design at the nanoscale, presenting a range of the new challenges that arise when the manipulation techniques that work at the macro- and micro-scale do not work at the nanoscale. Nanoarchitectonics approaches material design via a profound understanding of the interactions between individual nanostructures and their organization. This book presents the more advanced features of this research paradigm, focusing on the materials fabrication of self-defined nanostructures and demonstrating possible applications of these fabricated materials. - Written by the team that coined the term nanoarchitectonics, providing a detailed explanation of the approach and techniques of supramolecular nanoarchitectonics - Focuses on the fabrication of materials with defined structures via organized interactions at the nanoscale - Demonstrates current and potential applications of nanoarchitected materials

Download or read book Physics at the Biomolecular Interface written by Ariel Fernández and published by Springer. This book was released on 2016-05-11 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses primarily on the role of interfacial forces in understanding biological phenomena at the molecular scale. By providing a suitable statistical mechanical apparatus to handle the biomolecular interface, the book becomes uniquely positioned to address core problems in molecular biophysics. It highlights the importance of interfacial tension in delineating a solution to the protein folding problem, in unravelling the physico-chemical basis of enzyme catalysis and protein associations, and in rationally designing molecular targeted therapies. Thus grounded in fundamental science, the book develops a powerful technological platform for drug discovery, while it is set to inspire scientists at any level in their careers determined to address the major challenges in molecular biophysics. The acknowledgment of how exquisitely the structure and dynamics of proteins and their aqueous environment are related attests to the overdue recognition that biomolecular phenomena cannot be effectively understood without dealing with interfacial behaviour. There is an urge to grasp how biologically relevant behaviour is shaped by the structuring of biomolecular interfaces and how interfacial tension affects the molecular events that take place in the cell. This book squarely addresses these needs from a physicist perspective. The book may serve as a monograph for practitioners and, alternatively, as an advanced textbook. Fruitful reading requires a background in physical chemistry and some basics in biophysics. The selected problems at the end of the chapters and the progression in conceptual difficulty make it a suitable textbook for a graduate level course or an elective course for seniors majoring in chemistry, physics, biomedical engineering or related disciplines.

Download or read book Structures and Dynamics of Interfacial Water written by Fujie Tang and published by Springer. This book was released on 2019-06-20 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the study of the interfacial water using molecular dynamics simulation and experimental sum frequency generation spectroscopy. It proposes a new definition of the free O-H groups at water-air interface and presents research on the structure and dynamics of these groups. Furthermore, it discusses the exponential decay nature of the orientation distribution of the free O-H groups of interfacial water and ascribes the origin of the down pointing free O-H groups to the presence of capillary waves on the surface. It also describes how, based on this new definition, a maximum surface H-bond density of around 200 K at ice surface was found, as the maximum results from two competing effects. Lastly, the book discusses the absorption of water molecules at the water–TiO2 interface. Providing insights into the combination of molecular dynamics simulation and experimental sum frequency generation spectroscopy, it is a valuable resource for researchers in the field.