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Conformational Dynamics Of A Polyelectrolyte System
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Book Synopsis Conformational Dynamics of a Polyelectrolyte System by : Mary Elizabeth Austin
Download or read book Conformational Dynamics of a Polyelectrolyte System written by Mary Elizabeth Austin and published by . This book was released on 1989 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conformation, Dynamics and Manipulation of Polyelectrolytes in Microchannels by : Tamal Roy
Download or read book Conformation, Dynamics and Manipulation of Polyelectrolytes in Microchannels written by Tamal Roy and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physical Chemistry of Polyelectrolytes by : Tsetska Radeva
Download or read book Physical Chemistry of Polyelectrolytes written by Tsetska Radeva and published by CRC Press. This book was released on 2001-02-21 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the fundamental nature of polyelectrolytes, static and dynamic properties of salt-free and salt-added solutions, and interactions with other charged and neutral species at interfaces with applications to industry and medicine. It applies the Metropolis Monte Carlo simulation to calculate counterion distributions, electric potentials, and fluctuation of counterion polarization for model DNA fragments.
Book Synopsis Conformation and Dynamics of the Weak Polyelectrolyte, Poly(acrylic Acid), as a Function of Ionization Via Vibrational Spectroscopy by : Wanda J. Walczak
Download or read book Conformation and Dynamics of the Weak Polyelectrolyte, Poly(acrylic Acid), as a Function of Ionization Via Vibrational Spectroscopy written by Wanda J. Walczak and published by . This book was released on 1993 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Conformation and Dynamics of Macromolecules in Condensed Systems by : M. Nagasawa
Download or read book Molecular Conformation and Dynamics of Macromolecules in Condensed Systems written by M. Nagasawa and published by Elsevier. This book was released on 2012-12-02 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macromolecular materials possess some remarkable features arising from the fact that their molecules are made up of more or less flexible chains which can have various conformations. The study of molecular conformations and dynamics of macromolecules is important in polymer science and technology from both basic and practical viewpoints. In practice, these studies have concentrated on dilute solutions but more recently there has been a clear trend towards studying molecular properties in condensed systems in order to understand the entire macromolecular system based on a unified concept.Based on lectures presented by an internationally recognized group of polymer scientists at a meeting held in Japan in October 1987 (plus two additional contributions), this volume summarises present knowledge of molecular conformations and dynamics of macromolecules from dilute solutions to various condensed systems. The book is not a random collection of papers of the usual conference proceedings type. Authors prepared their contributions in line with an overall plan for the work, were able to discuss the content with colleagues at the meeting, and finalised their text after the conference. It is thus a comprehensive, integrated overview of the field. Current developments in both theory and experiment are discussed in a well-balanced way. The behaviour of macromolecules at phase transition and interface is discussed in relation to their behaviour in bulk systems.The book offers a particularly up-to-date and authoritative picture of the current state of the art, and will be of interest to all research and professional workers concerned with polymer science in universities, industry, and government institutions.
Book Synopsis Structure and Dynamics of Confined Polymers by : John J. Kasianowicz
Download or read book Structure and Dynamics of Confined Polymers written by John J. Kasianowicz and published by Springer Science & Business Media. This book was released on 2002-07-31 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers are essential to biology because they can have enough stable degrees of freedom to store the molecular code of heredity and to express the sequences needed to manufacture new molecules. Through these they perform or control virtually every function in life. Although some biopolymers are created and spend their entire career in the relatively large free space inside cells or organelles, many biopolymers must migrate through a narrow passageway to get to their targeted destination. This suggests the questions: How does confining a polymer affect its behavior and function? What does that tell us about the interactions between the monomers that comprise the polymer and the molecules that confine it? Can we design and build devices that mimic the functions of these nanoscale systems? The NATO Advanced Research Workshop brought together for four days in Bikal, Hungary over forty experts in experimental and theoretical biophysics, molecular biology, biophysical chemistry, and biochemistry interested in these questions. Their papers collected in this book provide insight on biological processes involving confinement and form a basis for new biotechnological applications using polymers. In his paper Edmund DiMarzio asks: What is so special about polymers? Why are polymers so prevalent in living things? The chemist says the reason is that a protein made of N amino acids can have any of 20 different kinds at each position along the chain, resulting in 20 N different polymers, and that the complexity of life lies in this variety.
Download or read book Biofabrication written by Yi Cheng and published by Elsevier Inc. Chapters. This book was released on 2013-03-18 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated circuits transformed our lives, and the potential for integrating biology with devices promises even greater transformations. A key question is how to effectively interface biological and microfabricated systems. Our approach is to “biofabricate” the biology-device interface using biological materials and mechanisms. Here, we review recent progress on three biofabrication approaches: the use of stimuli-responsive materials to recognize device-imposed electrical inputs to direct the assembly (i.e., to electrodeposit) of hydrogels; the use of enzymes to build structure by conjugating and crosslinking macromolecules; and the use of genetic techniques to engineer proteins for assembly. We further illustrate how these biofabrication approaches enable the biofunctionalization of previously fabricated microfluidic devices and suggest the potential for lab-on-chip analysis and the creation of experimental devices to study complex biological systems. We anticipate that the complementarity between biological and technological fabrication paradigms will provide broad opportunities to build structures that couple the power of electronics to the versatility of biology.
Book Synopsis Physical Chemistry of Polyelectrolytes by : Tsetska Radeva
Download or read book Physical Chemistry of Polyelectrolytes written by Tsetska Radeva and published by CRC Press. This book was released on 2001-02-21 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the fundamental nature of polyelectrolytes, static and dynamic properties of salt-free and salt-added solutions, and interactions with other charged and neutral species at interfaces with applications to industry and medicine. It applies the Metropolis Monte Carlo simulation to calculate counterion distributions, electric potentia
Book Synopsis Fluorescence Studies of Polymer Containing Systems by : Karel Procházka
Download or read book Fluorescence Studies of Polymer Containing Systems written by Karel Procházka and published by Springer. This book was released on 2016-02-03 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the application of fluorescence spectroscopy in polymer research. The first chapters outline the basic principles of the conformational and dynamic behavior of polymers and review the problems of polymer self-assembly. Subsequent chapters introduce the theoretical principles of advanced fluorescence methods and typical examples of their application in polymer science. The book closes with several reviews of various fluorescence applications for studying specific aspects of polymer-solution behavior. It is a useful resource for polymer scientists and experts in fluorescence spectroscopy alike, facilitating their communication and cooperation.
Book Synopsis Polyelectrolyte Conformation, Interactions and Hydrodynamics as Studied by Light Scattering by : Snehasish Ghosh
Download or read book Polyelectrolyte Conformation, Interactions and Hydrodynamics as Studied by Light Scattering written by Snehasish Ghosh and published by . This book was released on 1994 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymer Yearbook by : Richard A. Pethrick
Download or read book Polymer Yearbook written by Richard A. Pethrick and published by CRC Press. This book was released on 1991 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains reviews on state-of-the-art Japanese research presented in the annual Spring and Autumn meetings of the Japanese Polymer Science Society. The aim of this section is to make information on the progress of Japanese Polymer Science, and on topics of current interest to polymer scientists in Japan, more easily available worldwide.
Book Synopsis Powders and Fibers by : Michel Nardin
Download or read book Powders and Fibers written by Michel Nardin and published by CRC Press. This book was released on 2006-12-21 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: New analytical methods have provided further insight into the structure, surface characteristics, and chemistries of increasingly small particles. However, current literature offers information on only a limited number of powders being investigated. Written by renowned scientists in the field, Powders and Fibers: Interfacial Science and Application
Book Synopsis Molecular Dynamics Simulations of Thermodynamic Properties of Selected Polymeric and Biological Molecules by : Liangxu Xie
Download or read book Molecular Dynamics Simulations of Thermodynamic Properties of Selected Polymeric and Biological Molecules written by Liangxu Xie and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Molecular Dynamics Simulations of Thermodynamic Properties of Selected Polymeric and Biological Molecules" by Liangxu, Xie, 谢良旭, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Molecular dynamics (MD) simulations have been widely applied to study equilibrium and dynamical properties of macromolecular systems. In this thesis MD simulations are applied to important macromolecular processes, including conformation transformation in macromolecular systems and enzymatic catalysis, molecular details of which are inaccessible to experimental methods. A fundamental investigation of macromolecular processes is presented in this dissertation. Different computational methods, such as integrated tempering sampling (ITS), umbrella sampling (US), and hybrid quantum mechanics/molecular mechanics (QM/MM) calculations, have been applied to study conformation changes of macromolecules including those in an enzyme catalyzed reaction. Three representative topics are investigated in this dissertation: (1) structural and dynamic relaxation behavior of polyelectrolytes confined in metal-organic framework (MOF) MIL-53(Al); (2) switch of peptide conformations between α-helix and β-hairpin states; and (3) chorismate rearrangement reaction catalyzed by ―isochorismate-pyruvate lyase from Pseudomonas aeruginosa‖ (PchB). Conformation and dynamical properties of polyelectrolytes threaded in MOF are investigated by MD simulations. A polymer threaded inside MOF was reported to have augmented conductivity and high ion-exchange kinetics. Basic understanding of confinement effect on polyelectrolytes is critical for designing novel polyelectrolyte MOF composites. Three polyelectrolytes, sodium polyacrylate acid, sodium poly (4-vinylbenzonic acid), and polydiallyldimethylammonium chloride (PDADMA), have been introduced into MIL-53(Al) channels to elucidate the confinement effect with variation of charged groups and molecular structures. Quantitative analysis demonstrates that confinement effects include (1) increasing order and size of polyelectrolytes, (2) enabling uniform counter-ion distribution, and (3) changing dynamic relaxation and configurational entropy of polyelectrolytes in the polyelectrolyte MIL-53(Al) composites. To efficiently sample conformation transformations of peptide, the ITS method has been used to investigate secondary structure transformation process of peptides. Proteins undergo conformational changes to fulfill their functions. Secondary structure changes between α-helix and β-hairpin, an essential feature of proteins, is explored by the ITS method. Results demonstrate that ITS can widely sample peptide conformational space, without prior knowledge of the structure or the use of a bias potential. The obtained free energy landscape is used reliably to characterize conformations changes of the peptide between α-helix and β-hairpin states. Finally, chorismate mutate reaction has been a central topic of the enzyme catalysis for decades. This reaction has attracted studies using the QM/MM scheme. However, it is still unclear whether the reaction is enthalpy driven or entropy driven. In this dissertation, the free energy changes of reaction in water are compared to corresponding enzymatic reaction catalyzed by PchB. This reaction is also studied by long timescale US simulations to illustrate the enthalpy/entropy scheme in this enzyme. Comparing the uncatalyzed reaction with the catalyzed reaction in PchB, we conclude that both enthalpy and entropy contribute to catalysis. The stable structure of bound chorismate and the enthalpy/
Download or read book Research Awards Index written by and published by . This book was released on 1982 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Structure, Dynamics and Equilibrium Properties of Colloidal Systems by : D. Bloor
Download or read book The Structure, Dynamics and Equilibrium Properties of Colloidal Systems written by D. Bloor and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute on Properties of Colloidal Systems, Aberystwyth, Wales, U.K., September 10-23, 1989
Book Synopsis Approaches to the Conformational Analysis of Biopharmaceuticals by : Roger L. Lundblad
Download or read book Approaches to the Conformational Analysis of Biopharmaceuticals written by Roger L. Lundblad and published by CRC Press. This book was released on 2009-12-15 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The activity of many biopharmaceutical polymers is dependent on conformation, and the next several years will see increased interest in the conformational analysis of these polymers resulting from the development of biosimilar or "follow-on" biological products. While a wide variety of approaches to analysis exists, finding the most viable ones wou
Book Synopsis Hierarchical Methods for Dynamics in Complex Molecular Systems by : Johannes Grotendorst
Download or read book Hierarchical Methods for Dynamics in Complex Molecular Systems written by Johannes Grotendorst and published by Forschungszentrum Jülich. This book was released on 2012 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: