Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Design Of New Tripodal Ligands To Advance The Biomimetic Zinc Chemistry
Download Design Of New Tripodal Ligands To Advance The Biomimetic Zinc Chemistry full books in PDF, epub, and Kindle. Read online Design Of New Tripodal Ligands To Advance The Biomimetic Zinc Chemistry ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Design of New Tripodal Ligands to Advance the Biomimetic Zinc Chemistry by : José Antonio Maldonado Calvo
Download or read book Design of New Tripodal Ligands to Advance the Biomimetic Zinc Chemistry written by José Antonio Maldonado Calvo and published by . This book was released on 2005 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of New Tripodal Ligands to Advance the Biomimetic Zinc Chemistry by :
Download or read book Design of New Tripodal Ligands to Advance the Biomimetic Zinc Chemistry written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this work was the synthesis of a ligand system which coordinates zinc with the same features as those showed by the enzymes. This ligand was to be water soluble, was to form a hydrophobic cavity around zinc and was to provide additional functional groups with hydrogen bonding properties. Several zinc complexes of three new tripodal ligands that deal with these aspects have been synthesised. First, a water soluble tripodal ligand, (2-pyridylmethylamino)-3-(3,5-dimethylpyrazol-1-yl)-propionic acid (L1H) was synthesised. With this amino acid ligand seven zinc complexes were isolated and characterised. Two new water soluble zinc aqua complexes provided structural models for several hydrolytic zinc enzymes. The hydrolytic cleavage of tris(p-nitrophenylphosphate) promoted by the hydroxide complex L1Zn-OH appeared to be accelerated by increasing the water content of the reaction solution. Thus, the rate constant k2 in a 50% water/DMSO solution is 0.912 s-1M-1, while in a 75% water/DMSO solution it is 4.02 s-1M-1. Second, the ligand system N, N, N-Tris{2-[((4-nitrophenyl)methyl)amino]ethyl}amine (L2) with a big hydrophobic cavity was synthesised. With this TREN based ligand seven zinc complexes were isolated and characterised. Two new zinc aqua complexes provided structural models for the resting state of the enzyme carbonic anhydrase. These complexes could be deprotonated and the resulting hydroxide species reacted with CO2 producing two new carbonate complexes. The ability of the thiocyanate anion to inhibit this process was demonstrated by the isolation of the thiocyanate complex. Third, the new ligand system potassium hydrotris(3-(2'-furyl)-5-methylpyrazol-1-yl)borate (KL3) has been synthesised. With this ligand twenty-eight new zinc complexes were isolated and characterized. The reactions of the hydroxide complex L3Zn-OH in methanolic solutions have demonstrated that the L3Zn-methanolate complex present in the equilibrium mixture is the reactive species. The.
Book Synopsis Advanced Concepts in Fluorescence Sensing by : Chris D. Geddes
Download or read book Advanced Concepts in Fluorescence Sensing written by Chris D. Geddes and published by Springer Science & Business Media. This book was released on 2007-05-24 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade, fluorescence has become the dominant tool in biotechnology and medical imaging. These exciting advances have been underpinned by the advances in time-resolved techniques and instrumentation, probe design, chemical / biochemical sensing, coupled with our furthered knowledge in biology. Complementary volumes 9 and 10, Advanced Concepts of Fluorescence Sensing: Small Molecule Sensing and Advanced Concepts of Fluorescence Sensing: Macromolecular Sensing, aim to summarize the current state of the art in fluorescent sensing. For this reason, Drs. Geddes and Lakowicz have invited chapters, encompassing a broad range of fluorescence sensing techniques. Some chapters deal with small molecule sensors, such as for anions, cations, and CO2, while others summarize recent advances in protein-based and macromolecular sensors. The Editors have, however, not included DNA or RNA based sensing in this volume, as this were reviewed in Volume 7 and is to be the subject of a more detailed volume in the near future.
Book Synopsis Zinc Biochemistry, Physiology, and Homeostasis by : W. Maret
Download or read book Zinc Biochemistry, Physiology, and Homeostasis written by W. Maret and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapters in this book review the remarkable advances in the field of zinc biology over the last decade. Zinc is essential for life, in particular for growth and development, through its role in hundreds of zinc enzymes and thousands of zinc proteins. Its catalytic, structural, and regulatory functions in these proteins impact metabolism, gene expression, and signal transduction, including neurotransmission. Among the micronutrients, zinc may rank with iron as to its importance for public health. The topics covered range from single molecules to cells and to whole organisms: the chemistry, design, and application of fluorophores for the determination of cellular zinc; the role of zinc in proliferation, differentiation, and apoptosis of cells; proteins that transport, sense, and distribute zinc and together form a cellular homeostatic system; the coordination chemistry of zinc in metalloproteins; the role of zinc in the brain as a neuromodulator/transmitter; the dependence of the immune system on zinc; zinc homeostasis in the whole human body.
Book Synopsis Advances in the Development of Artificial Metalloenzymes by : Tatjana N. Parac-Vogt
Download or read book Advances in the Development of Artificial Metalloenzymes written by Tatjana N. Parac-Vogt and published by Frontiers Media SA. This book was released on 2019-11-05 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactions catalyzed by metalloenzymes have great potential for applications in the biotechnology and pharmaceutical industries. While only a few of these enzymes have yet been used in such applications, in the last few decades numerous efficient, selective, environmentally friendly and economical synthetic analogues have been described, including supramolecular, polymeric, nanoparticulate and lowmolecular- weight organometallic complexes, and metal organic frameworks. In this Research Topic, we present a collection of original research and review articles that show significant recent advances made in the rational design of such artificial metalloenzymes.
Book Synopsis Anion Receptor Chemistry by : Jonathan L Sessler
Download or read book Anion Receptor Chemistry written by Jonathan L Sessler and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anion recognition plays a critical role in a range of biological processes, and a variety of receptors and carriers can be found throughout the natural world. Chemists working in the area of supramolecular chemistry have created a range of anion receptors, drawing inspiration from nature as well as their own inventive processes. This book traces the origins of anion recognition chemistry as a unique sub-field in supramolecular chemistry while illustrating the basic approaches currently being used to effect receptor design. The combination of biological overview and summary of current synthetic approaches provides a coverage that is both comprehensive and comprehensible. First, the authors detail the key design motifs that have been used to generate synthetic receptors and which are likely to provide the basis for further developments. They also highlight briefly some of the features that are present in naturally occurring anion recognition and transport systems and summarise the applications of anion recognition chemistry. Providing as it does a detailed review for practitioners in the field and a concise introduction to the topic for newcomers, Anion Receptor Chemistry reflects the current state of the art. Fully referenced and illustrated in colour, it is a welcome addition to the literature.
Book Synopsis Artificial Nucleases by : Marina A. Zenkova
Download or read book Artificial Nucleases written by Marina A. Zenkova and published by Springer Science & Business Media. This book was released on 2004-01-07 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of agents capable of cleaving RNA and DNA has attracted considerable attention from researchers in the last few years, because of the immediate and very important applications they can find in the emerging fields of biotechnology and pharmacology. There are essentially two classes of these agents - nucleases that occur naturally inside cells and synthetically produced artificial nucleases. The first class includes protein enzyme nucle ases and catalytic RNA structured ribozymes that perform cleavage of the phosphodiester bonds in nucleic acids according to a hydrolytic pathway in the course of different biochemical processes in the cell. A different pathway is used by some antibiotics which cleave DNA via redox-based mechanisms resulting in oxidative damage of nucleotide units and breakage of the DNA backbone. The above molecules are indispensable tools for manipulating nucleic acids and processing RNA; DNA-cleaving antibiotics and cytotoxic ribonucleases have demonstrated utility as chemotherapeutic agents. The second class, artificial nucleases, are rationally designed to imitate the active centers of natural enzymes by simple structures possessing minimal sets of the most important characteristics that are essential for catalysis. A dif ferent approach, in vitro selection, was also used to create artificial RNA and DNA enzymes capable of cleaving RNA. Being less efficient and specific as compared to the natural enzymes, the primitive mimics are smaller and robust and can function in a broad range of conditions.
Download or read book Indian Journal of Chemistry written by and published by . This book was released on 2003 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioinspiration and Biomimicry in Chemistry by : Gerhard Swiegers
Download or read book Bioinspiration and Biomimicry in Chemistry written by Gerhard Swiegers and published by John Wiley & Sons. This book was released on 2012-09-17 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Can we emulate nature's technology in chemistry? Through billions of years of evolution, Nature has generated some remarkable systems and substances that have made life on earth what it is today. Increasingly, scientists are seeking to mimic Nature's systems and processes in the lab in order to harness the power of Nature for the benefit of society. Bioinspiration and Biomimicry in Chemistry explores the chemistry of Nature and how we can replicate what Nature does in abiological settings. Specifically, the book focuses on wholly artificial, man-made systems that employ or are inspired by principles of Nature, but which do not use materials of biological origin. Beginning with a general overview of the concept of bioinspiration and biomimicry in chemistry, the book tackles such topics as: Bioinspired molecular machines Bioinspired catalysis Biomimetic amphiphiles and vesicles Biomimetic principles in macromolecular science Biomimetic cavities and bioinspired receptors Biomimicry in organic synthesis Written by a team of leading international experts, the contributed chapters collectively lay the groundwork for a new generation of environmentally friendly and sustainable materials, pharmaceuticals, and technologies. Readers will discover the latest advances in our ability to replicate natural systems and materials as well as the many impediments that remain, proving how much we still need to learn about how Nature works. Bioinspiration and Biomimicry in Chemistry is recommended for students and researchers in all realms of chemistry. Addressing how scientists are working to reverse engineer Nature in all areas of chemical research, the book is designed to stimulate new discussion and research in this exciting and promising field.
Download or read book Inorganic Syntheses, Volume 32 written by and published by John Wiley & Sons. This book was released on 2009-09-22 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Inorganic Synthesis Series provides all users of inorganic substances with detailed and foolproof procedures for the preparation of important and timely compounds. This new volume includes information on water-solubilizing ligands for organometallics, labile ligand complexes, and the syntheses of cluster compounds and hydrides.
Book Synopsis Directory of Graduate Research by : American Chemical Society. Committee on Professional Training
Download or read book Directory of Graduate Research written by American Chemical Society. Committee on Professional Training and published by . This book was released on 2005 with total page 1932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.
Book Synopsis Pyridines: From Lab to Production by : Eric F.V. Scriven
Download or read book Pyridines: From Lab to Production written by Eric F.V. Scriven and published by Academic Press. This book was released on 2013-01-08 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pyridines: From Lab to Production provides a synthetic armory of tools to aid the practicing chemist by reviewing the most reliable historical methods alongside new methods/ Written by scientists who have actually used these in synthesis. By emphasizing tricks and tips to optimize reactions for the best yields and purity, which are often missing from the primary literature, this book provides another dimension for the synthetic chemist. A combined academic and industrial approach evaluates the best methods for different scales of reaction and discusses practical tips (e.g. when to stop a reaction early to maximize purity or when to re-use side products). Chapters also assess whether to make or source starting materials, how to connect them and what are the best synthetic routes. The book is designed to be a stand-alone reference, but also provides cross references to leading reviews and the Comprehensive Heterocyclic Chemistry reference works for those who want to learn more. Reviews tried and tested practical methods to help the reader select the best method for their research Includes tips, tricks and hints to enable the reader to get the best yield or cleanest product out of their reaction for synthesising or transforming a pyridine derivative Written by both academic researchers and industry leaders this provides a unique view of how to get the most out of a reaction no matter what scale you are running this on
Book Synopsis Modern Coordination Chemistry by : G. J. Leigh
Download or read book Modern Coordination Chemistry written by G. J. Leigh and published by Royal Society of Chemistry. This book was released on 2002 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Joseph Chatt was a pioneering figure in coordination chemistry. Intended as a record of Chatt's life, work, and influence, this book begins with a description of Chatt's career presented by co-workers, contemporaries, and students, then goes on to show that many of today's leading practitioners in the field have been influenced by Chatt. The latest research in coordination chemistry is presented to highlight Chatt's continuing legacy, in sections on the synthesis and reactivity of hydrido and dihydrogen complexes, the chemistry of phosphines, transition metal complexes of olefins and related isolobal ligands, chemistry related to dinitrogen complexes, the biological work of the ARC unit of nitrogen fixation at the University of Sussex, and patterns and generalizations in stability and reactivity. Leigh is affiliated with the University of Sussex, UK, and Winterton is affiliated with the University of Liverpool, UK. The book is distributed in the US by Springer Verlag. Annotation copyrighted by Book News Inc., Portland, OR.
Book Synopsis An Ion Exchange Study of Possible Hybridized 5f Bonding in the Actinides by : R. M. Diamond
Download or read book An Ion Exchange Study of Possible Hybridized 5f Bonding in the Actinides written by R. M. Diamond and published by . This book was released on 1953 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study has been made of the elution behavior of curium(III), americium(III), plutonium(III), actinium(III), plutonium(IV), neptunium(IV), uraniuM(IV), thorium(IV), neptunium(V), plutonium (VI), uranium (VI), lanthanum(III), cerium(III), europium(III), ytterbium(III), ytterium(III), strontium(II), barium(II), radium(II), cesium(I) with 3.2 M, 6.2 M, 9.3 M, and 12.2 M HCl solutions from Dowex-50 cation exchange resin columns. These elutions show that in high concentrations of hydrochloric acid the actinides form complex ions with chloride ion to a much greater extent than the lanthanides. The strengths of the tripositive actinide complex ions apparently go in the order plutonium > americium> curium, although their ionic radii also decrease in this same order. To explain these results, a partial covalent character may be ascribed to the bonding in the transuranium complex ions. It is shown that a reasonable structure for such covalent bonding involves hybridization of the 5f orbitals in the actinide elements.
Book Synopsis Core Concepts in Supramolecular Chemistry and Nanochemistry by : Jonathan W. Steed
Download or read book Core Concepts in Supramolecular Chemistry and Nanochemistry written by Jonathan W. Steed and published by John Wiley & Sons. This book was released on 2007-04-30 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supramolecular chemistry and nanochemistry are two strongly interrelated cutting edge frontiers in research in the chemical sciences. The results of recent work in the area are now an increasing part of modern degree courses and hugely important to researchers. Core Concepts in Supramolecular Chemistry and Nanochemistry clearly outlines the fundamentals that underlie supramolecular chemistry and nanochemistry and takes an umbrella view of the whole area. This concise textbook traces the fascinating modern practice of the chemistry of the non-covalent bond from its fundamental origins through to it expression in the emergence of nanochemistry. Fusing synthetic materials and supramolecular chemistry with crystal engineering and the emerging principles of nanotechnology, the book is an ideal introduction to current chemical thought for researchers and a superb resource for students entering these exciting areas for the first time. The book builds from first principles rather than adopting a review style and includes key references to guide the reader through influential work. supplementary website featuring powerpoint slides of the figures in the book further references in each chapter builds from first principles rather than adopting a review style includes chapter on nanochemistry clear diagrams to highlight basic principles
Book Synopsis Metal-Organic Frameworks by : Leonard R. MacGillivray
Download or read book Metal-Organic Frameworks written by Leonard R. MacGillivray and published by John Wiley & Sons. This book was released on 2010-12-17 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-organic frameworks represent a new class of materials that may solve the hydrogen storage problem associated with hydrogen-fueled vehicles. In this first definitive guide to metal-organic framework chemistry, author L. MacGillivray addresses state-of-art developments in this promising technology for alternative fuels. Providing professors, graduate and undergraduate students, structural chemists, physical chemists, and chemical engineers with a historical perspective, as well as the most up-to-date developments by leading experts, Metal-Organic Frameworks examines structure, symmetry, supramolecular chemistry, surface engineering, metal-organometallic frameworks, properties, and reactions.
Book Synopsis Structure Correlation by : Hans-Beat Bürgi
Download or read book Structure Correlation written by Hans-Beat Bürgi and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book leaves the conventional view of chemical structures far behind: it demonstrates how a wealth of valuable, but hitherto unused information can be extracted from available structural data. For example, a single structure determination does not reveal much about a reaction pathway, but a sufficiently large number of comparable structures does. Finding the 'right' question is as important as is the intelligent use of crystallographic databases. Contributions by F.H. Allen, T.L. Blundell, I.D. Brown, H.B. Bürgi, J.D. Dunitz, L. Leiserowitz and others, authoritatively discuss the structure correlation method as well as illustrative results in detail, covering such apparently unrelated subjects as * Bond strength relations in soldis * Crystal structure prediction * Reaction pathways of organic molecules * Ligand/receptor interactions and enzyme mechanisms This book will be useful to the academic and industrial reader alike. It offers both fundamental aspects and diverse applications of what will surely become a powerful branch of structural chemistry.
