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Interfacial And Confined Water

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Interfacial and Confined Water

Interfacial and Confined Water Book
Author : Ivan Brovchenko,Alla Oleinikova
Publisher : Elsevier
Release : 2008-06-03
ISBN : 9780080558172
Language : En, Es, Fr & De

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Book Description :

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

Can We Describe Graphene Confined Water Structures as Overlapping of Approaching Graphene water Interfacial Structures

Can We Describe Graphene Confined Water Structures as Overlapping of Approaching Graphene water Interfacial Structures  Book
Author : Anonim
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

We investigate the microscopic mechanisms of the overlap of interfacial structures in confined fluids and attempt to answer the question whether the confined structures can be predicted from the original density profiles of individual solid-fluid interfaces. For that purpose we perform (globally) isobaricisothermal (locally, grand canonical) molecular dynamics simulations to extract not only the axial distribution functions of the water-sites for the uncoupled graphene-water interfaces, but also those corresponding to the confined aqueous environments over the interplate range 8 ≤ h(Å) ≤ 28 typically at ambient conditions. We have tested two (i.e., an arithmetic and a geometric) superposition approximations for the singlet density of confined water between flat graphene plates, as well as for a combination of flat and corrugated graphene plates. The outcome of this study suggests that the answer to the title's question is a "yes", provided that the interplate distance h is large enough to avoid fluid geometric packing frustration.

High Resolution Imaging Spectroscopy and Nuclear Quantum Effects of Interfacial Water

High Resolution Imaging  Spectroscopy and Nuclear Quantum Effects of Interfacial Water Book
Author : Jing Guo
Publisher : Springer
Release : 2018-07-16
ISBN : 9811316635
Language : En, Es, Fr & De

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Book Description :

This thesis presents a series of experimental techniques based on scanning probe microscopy, which make it possible access the degree of freedom of protons both in real and energy space. These novel techniques and methods allow direct visualization of the concerted quantum tunneling of protons within the hydrogen-bonded network and quantification of the quantum component of a single hydrogen bond at a water–solid interface for the first time. Furthermore, the thesis demonstrates that the anharmonic quantum fluctuations of hydrogen nuclei further weaken the weak hydrogen bonds and strengthen the strong ones. However, this trend was reversed when the hydrogen bond coupled to the local environment. These pioneering findings substantially advance our understanding of the quantum nature of H bonds at the molecular level.

Phase Behavior of Two Dimensional Water Confined in Graphene Nanocapillaries

Phase Behavior of Two Dimensional Water Confined in Graphene Nanocapillaries Book
Author : YinBo Zhu
Publisher : Springer Nature
Release : 2021-09-18
ISBN : 9811579571
Language : En, Es, Fr & De

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Book Description :

Download Phase Behavior of Two Dimensional Water Confined in Graphene Nanocapillaries book written by YinBo Zhu, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Water in Biology Chemistry and Physics

Water in Biology  Chemistry and Physics Book
Author : G W Robinson,S Singh,S-B Zhu,M W Evans
Publisher : World Scientific
Release : 1996-07-03
ISBN : 9814499692
Language : En, Es, Fr & De

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Book Description :

The central theme, which threads through the entire book, concerns computational modeling methods for water. Modeling results for pure liquid water, water near ions, water at interfaces, water in biological microsystems, and water under other types of perturbations such as laser fields are described. Connections are made throughout the book with statistical mechanical theoretical methods on the one hand and with experimental data on the other. The book is expected to be useful not only for theorists and computer analysts interested in the physical, chemical, biological and geophysical aspects of water, but also for experimentalists in these fields. Contents:IntroductionMolecular Dynamics MethodsStatistical AveragesExperimental Description of WaterTheoretical Description of WaterBulk Water ComputationsResults for Aqueous SolutionsComputation for Water at InterfacesInterfacial Water in Chemistry and BiologyWater in Nonequilibrium StatesMassively Parallel ProcessingThe Far Past and the Near Future Readership: Chemists, biologists, physicists, computer scientists and geophysicists. keywords:Water Structure;Water Properties;Water Models;Aqueous Solutions;Interfacial Water;Field-Perturbed Water;Hydrogen Bonds;Hydration;Molecular Dynamics;Computer Simulations

Water at Interfaces

Water at Interfaces Book
Author : Jordi Fraxedas
Publisher : CRC Press
Release : 2014-04-15
ISBN : 1439861056
Language : En, Es, Fr & De

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Book Description :

Water, with its simple molecular structure, reveals a complex nature upon interaction with other molecules and surfaces. Water at Interfaces: A Molecular Approach provides a broad, multidisciplinary introduction to water at interfaces, focusing on its molecular characteristics. The book considers interfaces at different length scales from single water molecules to involvement of large numbers of water molecules, and from one-dimensional to three-dimensional interfaces. It begins with individual water molecules, describing their basic properties and the fundamental concepts that form the basis of this book. The text explores the main interfaces involving pure and ion-free condensed (liquid and solid) water, including water vapor/liquid water, liquid/oil, and liquid/solid interfaces. It examines water molecules on ideal surfaces—well-ordered (crystalline) and defect-free—covering topics such as electronic structure using frontier orbitals and substrate-induced structuring. The book discusses the affinity of water to surfaces, hydrophobicity and hydrophilicity, emphasizing two extreme cases of affinity. It then addresses real solid surfaces where water/solid interfaces play a key role in actual working conditions, examining water purification, photocatalytic activity, corrosion and degradation, and atmospheric agents. The final chapter deals with the interaction of water with the heterogeneous and complex surfaces of biomolecules, which can both influence the structure of the surrounding water and be modulated by the surrounding liquid. The author discusses simple to more complex biomolecules from peptides to proteins, nucleic acids, and membranes.

Interfacial Dynamics

Interfacial Dynamics Book
Author : Nikola Kallay
Publisher : CRC Press
Release : 2000-01-03
ISBN : 1482289792
Language : En, Es, Fr & De

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Book Description :

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

First virtual Bilateral Conference on Functional Materials BiC FM

First virtual Bilateral Conference on Functional Materials  BiC FM  Book
Author : Daria Kopylova
Publisher : Aegitas
Release : 2020-12-18
ISBN : 0369404491
Language : En, Es, Fr & De

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Book Description :

Download First virtual Bilateral Conference on Functional Materials BiC FM book written by Daria Kopylova, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Structures and Dynamics of Interfacial Water

Structures and Dynamics of Interfacial Water Book
Author : Fujie Tang
Publisher : Springer
Release : 2019-06-20
ISBN : 9811389659
Language : En, Es, Fr & De

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Book Description :

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.

Hydrogels

Hydrogels Book
Author : Thakur Raghu Raj Singh,Garry Laverty,Ryan Donnelly
Publisher : CRC Press
Release : 2018-02-28
ISBN : 1498748627
Language : En, Es, Fr & De

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Book Description :

Hydrogels are crosslinked, macromolecular polymeric materials arranged in a three-dimensional network, which can absorb and retain large amounts of water. Hydrogels are commonly used in clinical practice and experimental medicine for a wide range of applications, including drug delivery, tissue engineering and regenerative medicine, diagnostics, cellular immobilization, separation of biomolecules or cells, and barrier materials to regulate biological adhesions. This book elucidates the underlying concepts and emerging applications of hydrogels and will provide key case studies and critical analysis of the existing research.

Convergence of Terahertz Sciences in Biomedical Systems

Convergence of Terahertz Sciences in Biomedical Systems Book
Author : Gun-Sik Park,Yong Hyup Kim,Haewook Han,Joon Koo Han,Jaewook Ahn,Joo-Hiuk Son,Woong-Yang Park,Young Uk Jeong
Publisher : Springer Science & Business Media
Release : 2012-10-19
ISBN : 9400739656
Language : En, Es, Fr & De

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Book Description :

Recent technological breakthrough in the field of Terahertz radiation has triggered new applications in biology and biomedicine. Particularly, biological applications are based on the specific spectroscopic fingerprints of biological matter in this spectral region. Historically with the discovery of new electromagnetic wave spectrum, we have always discovered new medical diagnostic imaging systems. The use of terahertz wave was not realized due to the absence of useful terahertz sources. Now after successful generation of THz waves, it is reported that a great potential for THz wave exists for its resonance with bio-molecules. There are many challenging issues such as development of THz passive and active instrumentations, understanding of THz-Bio interaction for THz spectroscopy, THz-Bio nonlinear phenomena and safety guideline, and THz imaging systems. Eventually the deeper understanding of THz-Bio interaction and novel THz systems enable us to develop powerful THz biomedical imaging systems which can contribute to biomedical industry. This is a truly interdisciplinary field and convergence technology where the communication between different disciplines is the most challenging issue for the success of the great works. One of the first steps to promote the communications in this convergence technology would be teaching the basics of these different fields to the researchers in a plain language with the help of Convergence of Terahertz Science in Biomedical Systems which is considered to be 3-4th year college students or beginning level of graduate students. Therefore, this type of book can be used by many people who want to enter or understand this field. Even more it can be used for teaching in universities or research institutions.

Handbook of Low Level Laser Therapy

Handbook of Low Level Laser Therapy Book
Author : Michael R. Hamblin,Tanupriya Agrawal,Marcelo de Sousa
Publisher : CRC Press
Release : 2016-10-14
ISBN : 1315341174
Language : En, Es, Fr & De

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Book Description :

Low-Level Laser Therapy (LLLT) also known as photobiomodulation is almost 50 years old, and recently has been getting increasing acceptance from the scientific, medical, and veterinary communities. Discoveries are constantly being made about the cellular and molecular mechanisms of action, the range of diseases that can be treated is also rising, and home use LED devices are becoming common. This book compiles cutting-edge contributions from the world’s leading experts in Photobiomodulation and LLLT. Chapters cover general concepts, mechanisms of action, in vitro studies, pre-clinical animal studies, veterinary applications and a wide range of clinical topics. Edited by Michael Hamblin from Massachusetts General Hospital and Harvard Medical School, aided by two prominent researchers (Marcelo Sousa and Tanupriya Agrawal), this book will appeal to anyone involved in the basic science, translational aspects and clinical applications of LLLT.

Rheology and Dynamics of Simple and Complex Liquids in Mesoporous Matrices

Rheology and Dynamics of Simple and Complex Liquids in Mesoporous Matrices Book
Author : Simon Gruner
Publisher : Logos Verlag Berlin GmbH
Release : 2010
ISBN : 3832525963
Language : En, Es, Fr & De

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Book Description :

Subject of my thesis is a study of rheologic and dynamic properties of fluids confined in an isotropic pore network with pore radii of approx. 5nm embedded in a monolithic silica matrix (porous Vycor). The experimental technique bases on the capillary rise of a wetting liquid in a porous substrate, also known as spontaneous imbibition. A crucial part of the conducted experiments centers on the increasing relevance of the liquid-substrate interface in the mesopore confinement. Detailed analyses of the measurements carried out with water, silicon oils, and a series of hydrocarbons result in precise information on the boundary conditions expressed in terms of the velocity slip length. Systematic variations of the chain-length of the used hydrocarbons also allow for an assessment of the influence of the shape of the liquid's building blocks on the nanoscopic flow behavior. Supplemental forced throughput experiments additionally address the impact of the liquid-substrate interaction. Furthermore, the influences of spatial confinement on the surface freezing transition of the linear hydrocarbon n-tetracosane as well as on the mesophase transitions of the liquid crystal 8OCB are investigated. Finally, a third, more general study focuses on the kinetics of the invasion front, which is supposed to be influenced significantly by the random environment of the pore space considered.

Development of Interfacial Structure in a Confined Air Water Cap Turbulent and Churn Turbulent Flow

Development of Interfacial Structure in a Confined Air Water Cap Turbulent and Churn Turbulent Flow Book
Author : Anonim
Publisher : Unknown
Release : 2001
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The objective of the present work is to study and model the interfacial structure development of air-water two-phase flow in a confined test section. Experiments of a total of 9 flow conditions in a cap-turbulent and churn-turbulent flow regimes are carried out in a vertical air-water upward two-phase flow experimental loop with a test section of 20-cm in width and 1-cm in gap. The miniaturized four-sensor conductivity probes are used to measure local two-phase parameters at three different elevations for each flow condition. The bubbles captured by the probes are categorized into two groups in view of the two-group interfacial area transport equation, i.e., spherical/distorted bubbles as Group 1 and cap/churn-turbulent bubbles as Group 2. The acquired parameters are time-averaged local void fraction, interfacial velocity, bubble number frequency, interfacial area concentration, and bubble Sauter mean diameter for both groups of bubbles. Also, the line-averaged and area-averaged data are presented and discussed. The comparisons of these parameters at different elevations demonstrate the development of interfacial structure along the flow direction due to bubble interactions.

The Electrodynamics of Water and Ice

The Electrodynamics of Water and Ice Book
Author : Vasily Artemov
Publisher : Springer Nature
Release : 2021-09-18
ISBN : 3030724247
Language : En, Es, Fr & De

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Book Description :

Download The Electrodynamics of Water and Ice book written by Vasily Artemov, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Transport and Reactivity of Solutions in Confined Hydrosystems

Transport and Reactivity of Solutions in Confined Hydrosystems Book
Author : Lionel Mercury,Niels Tas,Michael Zilberbrand
Publisher : Springer
Release : 2013-11-12
ISBN : 9400775342
Language : En, Es, Fr & De

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Book Description :

The present work reflects a multi-disciplinary effort to address the topic of confined hydrosystems developed with a cross-fertilization panel of physics, chemists, biologists, soil and earth scientists. Confined hydrosystems include all situations in natural settings wherein the extent of the liquid phase is limited so that the solid-liquid and/or liquid-air interfaces may be critical to the properties of the whole system. Primarily, this so-called “residual” solution is occluded in pores/channels in such a way that decreases its tendency to evaporation, and makes it long-lasting in arid (Earth deserts) and hyper-arid (Mars soils) areas. The associated physics is available from domains like capillarity, adsorption and wetting, and surface forces. However, many processes are still to understand due to the close relationship between local structure and matter properties, the subtle interplay between the host and the guest, the complex intermingling among static reactivity and migration pathway. Expert contributors from Israel, Russia, Europe and US discuss the behaviour of water and aqueous solutes at different scale, from the nanometric range of carbon nanotubes and nanofluidics to the regional scale of aquifers reactive flow in sedimentary basins. This scientific scope allowed the group of participants with very different background to tackle the confinement topic at different scales. The book is organized according to four sections that include: i) flow, from nano- to mega-scale; ii) ions, hydration and transport; iii) in-pores/channels cavitation; iv) crystallization under confinement. Most of contributions relates to experimental works at different resolution, interpreted through classic thermodynamics and intermolecular forces. Simulation techniques are used to explore the atomic scale of interfaces and the migration in the thinnest angstrom-wide channels.

Nuclear Magnetic Resonance Studies of Interfacial Phenomena

Nuclear Magnetic Resonance Studies of Interfacial Phenomena Book
Author : Vladimir M. Gun'ko,Vladimir V. Turov
Publisher : CRC Press
Release : 2013-04-08
ISBN : 9781466551688
Language : En, Es, Fr & De

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Book Description :

Properties and applications of high surface area materials depend on interfacial phenomena, including diffusion, sorption, dissolution, solvation, surface reactions, catalysis, and phase transitions. Among the physicochemical methods that give useful information regarding these complex phenomena, nuclear magnetic resonance (NMR) spectroscopy is the most universal, yielding detailed structural data regarding molecules, solids, and interfaces. Nuclear Magnetic Resonance Studies of Interfacial Phenomena summarizes NMR research results collected over the past three decades for a wide range of materials—from nanomaterials and nanocomposites to biomaterials, cells, tissues, and seeds. This book describes the applications of important new NMR spectroscopic methods to a variety of useful materials and compares them with results from other techniques such as adsorption, differential scanning calorimetry, thermally stimulated depolarization current, dielectric relaxation spectroscopy, infrared spectroscopy, optical microscopy, and small-angle and wide-angle x-ray scattering. The text explores the application of NMR spectroscopy to examine interfacial phenomena in objects of increasing complexity, beginning with unmodified and modified silica materials. It then describes properties of various mixed oxides with comparisons to individual oxides and also describes carbon materials such as graphite and carbon nanotubes. Chapters deal with carbon–mineral hybrids and their mosaic surface structures, and interfacial phenomena at the surface of natural and synthetics polymers. They also explore a variety of biosystems, which are much more complex, including biomacromolecules (proteins, DNA, and lipids), cells and tissues, and seeds and herbs. The authors cover trends in interfacial phenomena investigations, and the final chapter describes NMR and other methods used in the book. This text presents a comprehensive description of a large array of hard and soft materials, allowing the analysis of the structure–property relationships and generalities on the interfacial behavior of materials and adsorbates.

Physics at the Biomolecular Interface

Physics at the Biomolecular Interface Book
Author : Ariel Fernández
Publisher : Springer
Release : 2016-05-11
ISBN : 3319308521
Language : En, Es, Fr & De

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Book Description :

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.

Adsorption and Phase Behaviour in Nanochannels and Nanotubes

Adsorption and Phase Behaviour in Nanochannels and Nanotubes Book
Author : Lawrence J. Dunne,George Manos
Publisher : Springer Science & Business Media
Release : 2009-09-24
ISBN : 9789048124817
Language : En, Es, Fr & De

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Book Description :

Channels of nanotubular dimensions exist in a variety of materials (examples are carbon nanotubes and the nanotubular channels of zeolites and zeotypes) and show promise for numerous applications due to their unique properties. One of their most important properties is their capacity to adsorb molecules and these may exist in a variety of phases. "Adsorption and Phase Behaviour in Nanochannels and Nanotubes" provides an excellent review of recent and current work on adsorption on nanometerials. It is an impressive collection of papers dealing with the adsorption and phase behaviour in nanoporous materials from both experimental and theoretical perspectives. "Adsorption and Phase Behaviour in Nanochannels and Nanotubes" focuses on carbon nanotubes as well as zeolites and related materials.