Biological Macromolecules and Polyelectrolytes in Solution PDF Download
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Author: Henryk Eisenberg
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 300
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Author: Henryk Eisenberg
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 300
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Book Description
Author: J. R. Clammer
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: H.G. Elias
Publisher: Springer Science & Business Media
ISBN: 146157367X
Category : Science
Languages : en
Pages : 554
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Book Description
The second edition of this textbook is identical with its fourth German edi tion and it thus has the same goals: precise definition of basic phenomena, a broad survey of the whole field, integrated representation of chemistry, physics, and technology, and a balanced treatment of facts and comprehen sion. The book thus intends to bridge the gap between the often oversimpli fied introductory textbooks and the highly specialized texts and monographs that cover only parts of macromolecular science. The text intends to survey the whole field of macromolecular science. Its organization results from the following considerations. The chemical structure of macromolecular compounds should be inde pendent of the method of synthesis, at least in the ideal case. Part I is thus concerned with the chemical and physical structure of polymers. Properties depend on structure. Solution properties are thus discussed in Part 11, solid state properties in Part Ill. There are other reasons for dis cussing properties before synthesis: For example, it is difficult to understand equilibrium polymerization without knowledge of solution thermodynamics, the gel effect without knowledge of the glass transition temperature, etc. Part IV treats the principles of macromolecular syntheses and reactions.
Author: Masanori Hara
Publisher: CRC Press
ISBN: 9780824787592
Category : Technology & Engineering
Languages : en
Pages : 416
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Book Description
Aims to provide in-depth coverage of recent advances in all important areas of polyelectrolyte research and applications. Topics covered in this text include scaling theory, dynamic light scattering, neutron scattering, biopolymers and ionomers.
Author: Prof. Jan Hermans
Publisher: John Wiley & Sons
ISBN: 1118733770
Category : Science
Languages : en
Pages : 411
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Book Description
Progressively builds a deep understanding of macromolecular behavior Based on each of the authors' roughly forty years of biophysics research and teaching experience, this text instills readers with a deep understanding of the biophysics of macromolecules. It sets a solid foundation in the basics by beginning with core physical concepts such as thermodynamics, quantum chemical models, molecular structure and interactions, and water and the hydrophobic effect. Next, the book examines statistical mechanics, protein-ligand binding, and conformational stability. Finally, the authors address kinetics and equilibria, exploring underlying theory, protein folding, and stochastic models. With its strong emphasis on molecular interactions, Equilibria and Kinetics of Biological Macromolecules offers new insights and perspectives on proteins and other macromolecules. The text features coverage of: Basic theory, applications, and new research findings Related topics in thermodynamics, quantum mechanics, statistical mechanics, and molecular simulations Principles and applications of molecular simulations in a dedicated chapter and interspersed throughout the text Macromolecular binding equilibria from the perspective of statistical mechanics Stochastic processes related to macromolecules Suggested readings at the end of each chapter include original research papers, reviews and monographs, enabling readers to explore individual topics in greater depth. At the end of the text, ten appendices offer refreshers on mathematical treatments, including probability, computational methods, Poisson equations, and defining molecular boundaries. With its classroom-tested pedagogical approach, Equilibria and Kinetics of Biological Macromolecules is recommended as a graduate-level textbook for biophysics courses and as a reference for researchers who want to strengthen their understanding of macromolecular behavior.
Author: Nermin Acar
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Polyelectrolyte complexes, also called interpolymer complexes, are new class of chemically distinct and identifiable compounds. They are formed by polyelectrolytes that are macromolecules carrying a relatively large number of functional groups, orunder suitable conditions can become charged. Polyelectrolytes interact with various low and high molecular weight substances and form interpolymer complexes. These complexes are either separated from the solution as solids (polycomplex salt) or may settle as a polyelectrolyte complex gel, and they can be soluble in solution by controlling experimental factors. They are, in general, obtained in either case, by mixing polyelectrolytes solution, and by matrix polymerization. Significant differences might exist between the chemical, thermal and mechanical properties ofinterpolymer complexes with respect to their components and experimental conditions. All biological macromolecules, proteins, nucleic acids, and polysaccharides are polyelectrolytes and interact with each other and small ions during their biological function. Their electrostatic interactions contribute a significant part of the structural stabilization of biological molecules and they are major determinants for the kinetics of biological process. Considering all these vital processes research on the polyelectrolyte complexes obtained by synthetic polyelectrolytes might be a simple model system for the complicated biopolymer reactions. Studying the special properties of polycomplex formation between synthetic polyelectrolytes and low molecular weight compounds can be useful for understanding the nature of protein-lipid interaction in biomembranes or in the mechanism of protein denaturation. On the other hand, polyelectrolyte complexes are very promising materials for semi-permeable membranes for the industrial applications such as desalting of sea water, ultrafiltration and purification of aqueous solution and also for ultrafiltration of biological liquids.With all the above given respects, numerous studies have been made successively onvarious polyelectrolyte complexes in the last two decades. However very few studies have been reported on the interaction between some certain polyphosphates andvinylpyridine polymers. One of a few studies with poly(phosphate) has been given by N.Acar and T.Tulun on the interaction of poly(sodiumphosphate) (PSP) andpoly(4-vinylpyridiniumchloride) (P4VPHCl). The present study was aimed to investigate the interaction between poly(sodiumphosphate) and poly(4-vinylpyridiniumchloride) with 4-amino benzoic acid (low molecular weight compound) individually as well as the detailed continuation of the previous work which dealt with the polyelectrolyte complex formed by PSP and P4VPHCl.Poly(sodium phosphate) is interesting because it is an inorganic polymer and, rather unusually it is one of the few anionic polymers of the integral type. Actually polyphosphates are somewhat analogous to the nucleic acids. Vinylpyridine polymers have particular importance as polyelectrolytes and have great ability to develop interpolymer complexes with polyacids.The present study aims to form polyelectrolyte model complexes similar to or mimicking biologically active compounds and, thus, to understand the operating mechanism of biopolymers in living organisms through the investigation of the structure and various features of these model complexes. In the experimental part of the study, insoluble polyelectrolyte complexes were obtained from the both, concentrated and dilute solutions of PSP and P4VPHCl. Stoichiometry of the isolated complexes were found to be 1:1 as a result of analysis of the supernatant liquid in conjunction with concentration of the initial components.In the dilute aqueous solution, occurrence of polyelectrolyte complex was proved by UV spectroscopy. Salt effect of NaCl, the effect of NaCl on complex formation andthermal properties of complexes were investigated.Regarding the reaction of PSP with 4-amino benzoic acid, hydrochloride (PABCl),the stoichiometry of complex was found as 1:1.2 using viscometric and volumetricanalysis of the supernatant. Besides, spectroscopic and conductometric methods were used for the complex stoichiometry. The experimental factors such as pH,ionic strength and temperature that affect the stoichiometry of complex were investigated.In the case of the poly(4-vinylpyridine) (P4VP) with 4-aminobenzoic acid, IR spectroscopy , potentiometry and DSC were used and the nature of binding between the components was identified as hydrogen bonding.It is known that transition metals take part in the biochemical process. In the present study, interaction of copper (II) with P4VP- PABA complex system is of interest. Potentiometric method was used to follow the above stated interaction in aqueousethanol solution for P4VP-PABA system. Protonation and the stability constants ofP4VP-PABA system were determined.Swelling properties of polyelectrolyte systems have been studied largely due to their industrial uses. In order to investigate the swelling properties of P4VPHCl-PSP system, PSP and P4VP that is the initial component of polycation were subjected to irradiation for six different radiation doses to obtain cross linked structure. It is found that radiation has no affect on PSP.After irradiation the insoluble, the gel, parts were determined by soxhlet extraction and UV spectroscopy. Up to certain dose the gelpercent of P4VP samples increased, and thereafter remained unchanged. From the relation between gel fraction and radiation dose, the efficiency of crosslinking and of scission were determined. Irradiated P4VP that contained only gel part was quaternized to obtain waterswellable P4VPHCl gel. The interaction of P4VPHCl gel with the aqueous solution of PSP was investigated considering ionic strength and pH.
Author: Mitsuru Nagasawa
Publisher: John Wiley & Sons
ISBN: 1119057086
Category : Science
Languages : en
Pages : 298
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Book Description
The Advances in Chemical Physics series provides the chemical physics field with a forum for critical, authoritative evaluations of advances in every area of the discipline. This volume explores topics from Thermodynamic Properties of Polyelectrolyte Solutions to ion-binding of polyelectrolytes. The book features: The only series of volumes available that presents the cutting edge of research in chemical physics Contributions from experts in this field of research Representative cross-section of research that questions established thinking on chemical solutions An editorial framework that makes the book an excellent supplement to an advanced graduate class in physical chemistry or chemical physics
Author: Visakh P. M.
Publisher: Springer
ISBN: 3319016806
Category : Technology & Engineering
Languages : en
Pages : 388
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Book Description
This book offers a valuable reference source to graduate and post graduate students, engineering students, research scholars polymer engineers from industry. The book provides the reader with current developments of theoretical models describing the thermodynamics polyelectrolytes as well as experimental findings. A particular emphasis is put on the rheological description of polyelectrolyte solutions and hydrogels.
Author: Arthur Veis
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 312
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Book Description
Author: Paul Dubin
Publisher: Springer Science & Business Media
ISBN: 3642784690
Category : Technology & Engineering
Languages : en
Pages : 368
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Book Description
The current book describes the chemical and physical behavior of polymers and biopolymers that form highly associating structures in equilibrium solution. It summons the established results known of polymer complexes in solution taking into account also the recent developments in biotechnology concerning this topic, in technological applications of polymer-protein interactions, in fluorescence and scattering techniques for the study of intra- and interpolymer association and in the study of ionomers in solution. The book covers the whole range from synthesis and fundamental aspects to applications and technology of associated polymers.
