Download or read book Chemical and Biological Applications of Relaxation Spectrometry written by E. Wyn-Jones and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical relaxation spectrometry involves the application of several different relaxation techniques to investigate the kinetics and mechanisms of fast chemical reactions and also dynamic molecul 10 ar processes that occur in liquids in the time range 1 - 10- secs. These methods have been used widely in several disciplines of the natural sciences including molecular biology, biochemistry, organic stereochemistry, detergent chemistry and inorganic chemistry. The purpose of the Advanced Study Institute was to provide a forum for scientists to discuss the role, scope and limitations of the various applications of chemical relaxation methods in order to stimulate discussion and interaction between workers in these different fields. The papers described in this volume are a summary of the contributions that were discussed at the meeting. The brief given to the authors was to attempt to prepare an article contain ing a good supply of references so that the book can be used not only by those starting in the field, but also by the specialist and research worker. These contributions cover a varied range of topics summarizing the achievements, the current state of knowledge and possible application in many disciplines. It is to be hoped that this volume will help to point out some new directions towards which research efforts are required and to attract new researchers with fresh points of view.
Download or read book Chemical and Biological Applications of Relaxation Spectrometry written by E. Wyn-Jones and published by . This book was released on 2014-01-15 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Biological Applications of Relaxation Spectrometry written by Evan Wyn-Jones and published by . This book was released on 1975 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solution Chemistry of Surfactants written by K.L. Mittal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 52nd Colloid and Surface Science Symposium of the Divis ion of Colloid and Surface Chemistry of the American Chemical Society was held in Knoxville, TN, June 12-14, 1978, and one of its Sections was devoted to the topic of Solution Chemistry of Surfactants. Although it was billed as the Section on Solution Chemistry of Surfactants, but it was indeed a veritable inter national symposium on this topic as 51 papers by about 100 con tributors from 12 countries were listed in the program. The present volume and its companion volume 2 document the proceedings of the above-mentioned Section on Solution Chemistry of Surfactants. In 1976 there was held an international symposium on Micellization, Solubilization and Microemulsions in Albany, l the proceedings of which have been chronicled in two volumes. A great deal of material dealing with micelles contributed by a legion of prominent researchers constitutes these volumes but a few subtopics were not adequately covered; so it was deemed appro priate to cover these topics as well as the recent progress in the general area of aggregation of surfactants in this Section. Also as it is the amphiphilicity or amphipathicity* of a surfact ant molecule which is responsible for both adsorption at inter faces and aggregation in solution, so it was considered quite apropos to include the topic of adsorption at interfaces in this Section. Concomitantly, the present volumes not only cover the aggregation phenomena but also the adsorption at interfaces.
Download or read book Theory of Molecular Relaxation written by Francis K. Fong and published by John Wiley & Sons. This book was released on 1975 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Relaxation in Molecular Biology written by I. Pecht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of an area of scientific research is a dynamic process with its own kinetic equations and its own physical mech anism. The study of fast chemical interactions and transformations is such an area, and while it is tempting to draw analogies or to speculate about the simplest model system, the lack of ade quately averaged observables is an annoying obstacle to such an undertaking. Sciences suffering from such conditions usually avoid quantitative models, be they primitive or complex. Instead, they prove their point by "case histories". Chemical relaxation kinetics started as an offspring of research in acoustics. In some aqueous ionic solutions anomalous acoustic absorption had been observed. A systematic study traced the cause of this absorption, showing that the covered frequency range and the intensity of the absorption were related in a predictable manner to the rate at which ions can interact and form structures differing in volume from the non interacting species. The step from this experimental observation and its correct, non trivial explanation to the discovery that all fast chemical pro cesses must reveal themselves quantitatively in the relaxation rate of a perturbed equilibrium state, and that perturbation para meters other than sound waves can be used for its exploitation, was made by MANFRED EIGEN in 1954. The foresightedness of K.F.
Download or read book Chlorine Bromine and Iodine NMR written by B. Lindman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing interest in NMR spectroscopy of what in some confer ences in this field is commonly termed "other nuclei" is unmistakable. Chemists and biologists who employ NMR spectroscopy to study their problems have, however, been somewhat reluctant to study nuclei with electric quadrupole moments. These nuclei frequently give rise to broad NMR signals, sometimes too broad to be detectable with ordinary high resolution NMR spectrometers. Spectrometers that could cope with broad NMR signals of low intensity, "wide-line" spectrometers, have been available since the mid 1950:s but it appears that most of these instruments ended up in physical laboratories where the research was primarily directed towards solid state problems. The study of quadrupolar nuclei can provide unique and very valuable information on a variety of physico-chemical and biological systems. For one thing the relaxation of quadrupolar nuclei is in many ways easier to interpret than the relaxation of non-quadrupolar nuclei, since the former is in many cases caused by purely intramolecular interactions modulated by the molecular motion. Studies of quadrupolar relaxation have therefore furnished important information about molec ular reorientation and association in liquids and have played - and will certainly play for many years - an important role in testing new theoretical models of molecular motion in liquids.
Download or read book Relaxation kinetics written by Claude Bernasconi and published by Elsevier. This book was released on 2012-12-02 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relaxation Kinetics focuses on the theory of relaxation kinetics (also known as chemical relaxation) and the experimental techniques used in the study of fast reactions. Topics covered include relaxation times in single-step, two-step, and multistep systems; small perturbations; and relaxation amplitudes in single-step and multistep systems. Chemical relaxation in complex systems is also described, and a complete solution of the relaxation equation is presented. This book is comprised of 16 chapters divided into two sections and begins with an overview of the basic principles of chemical relaxation, including the linearization of rate equations, relaxation times, and transient and stationary relaxation methods. The following chapters explore relaxation times in single-step, two-step, and multistep systems, as well as relaxation amplitudes in single-step and multistep systems. The possibility of linearization of a rate equation for ""small"" perturbations is then considered, along with the derivation of the complete relaxation equation. The next chapter discusses transient relaxation techniques and explains how the data are analyzed for the stationary techniques when dealing with the specific techniques. The second section is devoted to experimental techniques such as the temperature-jump method, the electric field-jump method, and the concentration-jump method. Ultrasonic techniques and stationary electric field methods are also described. This monograph will be a valuable resource for chemists and physicists.
Download or read book Methods for Studying Nucleic Acid Drug Interactions written by Meni Wanunu and published by CRC Press. This book was released on 2011-12-20 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since most therapeutic efforts have been predominantly focused on pharmaceuticals that target proteins, there is an unmet need to develop drugs that intercept cellular pathways that critically involve nucleic acids. Progress in the discovery of nucleic acid binding drugs naturally relies on the availability of analytical methods that assess the efficacy and nature of interactions between nucleic acids and their putative ligands. This progress can benefit tremendously from new methods that probe nucleic acid/ligand interactions both rapidly and quantitatively. A variety of novel methods for these studies have emerged in recent years, and Methods for Studying DNA/Drug Interactions highlights new and non-conventional methods for exploring nucleic acid/ligand interactions. Designed to present drug-developing companies with a survey of possible future techniques, the book compares their drawbacks and advantages with respect to commonly used tools. Perhaps more importantly, this book was written to inspire young scientists to continue to advance these methods into fruition, especially in light of current capabilities for assay miniaturization and enhanced sensitivity using microfluidics and nanomaterials.
Download or read book Advances in Physical Organic Chemistry written by John P. Richard and published by Elsevier. This book was released on 2007-12-08 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Physical Organic Chemistry provides the chemical community with authoritative and critical assessments of the many aspects of physical organic chemistry. The field is a rapidly developing one, with results and methodologies finding application from biology to solid state physics. * Reviews the application of quantitative and mathematical methods towards understanding chemical problems * Multidisciplinary volumes cover organic, organometallic, bioorganic, enzymes and materials topics
Download or read book Techniques and Applications of Fast Reactions in Solution written by W.J. Gettins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of the pioneering efforts of Eigen, de Maeyer, Norrish and Porter, the kinetics of fast reactions in solution can now be studied using chemical relaxation methods, as well as many other fast reactions techniques. These methods have been applied successfully in many branches of the natural sciences. The simultaneous growth in the number of investiga tors and the diversity of their research interests has inevitably led to communication problems. The purpose of the NATO Advanced Study Institute entitled "New Applications of Chemical Relaxation Spectrometry and Other Fast Reaction Methods in Solution", was to create a forum so that research scientists working in different areas concerned with fast reactions could interact. This meeting was held at the Llandinam Building, University College of Wales, Aberystwyth from September 10th-20th, 1978. In addition to lectures on techniques and theory, two days of the NATO Advanced Study Institute, were spent discussing the current state of the art in this field. This two day meeting was also run under the auspices of the Chemical Society, Fast Reactions in Solution Group. The papers in this volume are the result of the contribu tions given in the Aberystwyth meeting. We have attempted to make this volume useful for the non-expert and a comprehensive introduction to theory, as well as the instrumentation used in the studies are discussed in detail.
Download or read book Advances in Physical Organic Chemistry APL written by and published by Academic Press. This book was released on 1987-01-16 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Physical Organic Chemistry APL
Download or read book Optically Active Polymers written by E. Sélégny and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first four volumes of the series on 'Charged and Reactive Polymers' have been devoted to polymers in solution (Voh. I and II) or in gel and membrane forms (Vols. III and IV). In correlation with charges, other physical or chemical properties of macro molecules have been considered. Understanding of charge and hydrophobic effects is equally important for synthetic and biopolymers or their systems. Optically Active Polymers are related to problems of the same class, since optical activity is an inherent property of both natural macromolecules as well as a great variety of polymers synthesized in the Jast twenty years. Optical activity is a physical spectral property of chiral matter caused by asymmetrical configurations, conformations and structures which have no plane and no center of symmetry and consequently have two mirror image enantiomeric forms of inverse optical rotation. The racemic mixture of chiral enantiomers is optically inactive. The most common form of optical activity was first measured at a constant wavelength by the angle of rotation of linearly polarized light. More recently the measurements have been extended to the entire range of visible and attainable ultraviolet regions where electronic transitions are observed, giving rise to the ORD technique (Optical Rotatory Dispersion). The Cotton effects appear in the region of optically active absorption bands; outside of these bands the plain curve spectrum is also dependent on all the electronic transitions of the chromophores.
Download or read book Supramolecular Photochemistry written by V. Ramamurthy and published by John Wiley & Sons. This book was released on 2011-07-07 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the most updated, comprehensive collection of monographs on all aspects of photochemistry and photophysics related to natural and synthetic, inorganic, organic, and biological supramolecular systems. Supramolecular Photochemistry: Controlling Photochemical Processes addresses reactions in crystals, organized assemblies, monolayers, zeolites, clays, silica, micelles, polymers, dendrimers, organic hosts, supramolecular structures, organic glass, proteins and DNA, and applications of photosystems in confined media. This landmark publication describes the past, present, and future of this growing interdisciplinary area.
Download or read book Encyclopedia of Surface and Colloid Science written by P. Somasundaran and published by CRC Press. This book was released on 2006 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasonics written by and published by Academic Press. This book was released on 1981-09-02 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonics
Download or read book Dynamics of Proteins and Nucleic Acids written by and published by Elsevier. This book was released on 2013-08-14 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published continuously since 1944, Advances in Protein Chemistry and Structural Biology has been a continuous, essential resource for protein chemists. Covering reviews of methodology and research in all aspects of protein chemistry, including purification/expression, proteomics, modeling and structural determination and design, each volume brings forth new information about protocols and analysis of proteins while presenting the most recent findings from leading experts in a broad range of protein-related topics. Covers reviews of methodology and research in all aspects of protein chemistry Brings forth new information about protocols and analysis of proteins while presenting the most recent findings from leading experts in a broad range of protein-related topics
