› › Metal Ions

Hydrolysis of Metal Ions

Author : Paul L. Brown

Publisher : John Wiley & Sons

Page : 1449 pages

File Size : 38,53 MB

Release : 2016-02-23

Category : Science

ISBN : 3527656200

Get eBook

Book Description

Endlich ein Fachbuch, das die Theorie, Methoden und die verschiedenen Arten von Metall-Ionen-Komplexen in Wasser (Hydrolyse) umfassend behandelt. Geschrieben wurde dieses Referenzwerk von einem Kernchemiker aus dem Hochschulbereich und einem Geochemiker aus der Industrie. Behandelt werden Kationen- und Anionen-Komplexe sowie die Metall-Ionen-Hydrolyse, zu der zunächst Hintergrundinformationen geliefert werden, bevor eine Beschreibung der Dissoziation von Wasser, aller verschiedenen Hydrolysekomplexe und Verbindungen von Metall und Wasser folgt. Ein Muss für Wissenschaftler im universitären Umfeld und in der Industrie, die sich mit diesem interdisziplinären Thema beschäftigen.



Interrelations between Essential Metal Ions and Human Diseases

Author : Astrid Sigel

Publisher : Springer Science & Business Media

Page : 603 pages

File Size : 42,17 MB

Release : 2014-01-27

Category : Science

ISBN : 9400775008

Get eBook

Book Description

MILS-13 provides an up-to-date review on the relationships between essential metals and human diseases, covering 13 metals and 3 metalloids: The bulk metals sodium, potassium, magnesium, and calcium, plus the trace elements manganese, iron, cobalt, copper, zinc, molybdenum, and selenium, all of which are essential for life. Also covered are chromium, vanadium, nickel, silicon, and arsenic, which have been proposed as being essential for humans in the 2nd half of the last century. However, if at all, they are needed only in ultra-trace amounts, and because of their prevalence in the environment, it has been difficult to prove whether or not they are required. In any case, all these elements are toxic in higher concentrations and therefore, transport and cellular concentrations of at least the essential ones, are tightly controlled; hence, their homeostasis and role for life, including deficiency or overload, and their links to illnesses, including cancer and neurological disorders, are thoroughly discussed. Indeed, it is an old wisdom that metals are indispensable for life. Therefore, Volume 13 provides in an authoritative and timely manner in 16 stimulating chapters, written by 29 internationally recognized experts from 7 nations, and supported by more than 2750 references, and over 20 tables and 80 illustrations, many in color, a most up-to-date view on the vibrant research area of the Interrelations between Essential Metal Ions and Human Diseases.



Metal Ions and Bacteria

Author : Terrance J. Beveridge

Publisher : Wiley-Interscience

Page : 488 pages

File Size : 12,96 MB

Release : 1989

Category : Medical

ISBN :

Get eBook

Book Description

A comprehensive treatment of the interactions of metals with bacteria, a subject of interest in medicine, toxicology, extraction of metals, mineral cycling and microbiology, is provided in this book. It outlines the diversity of these interactions, their importance to bacteria and humans, and the global scale of the reaction products. Topics include the use of microbes to immobilize toxic heavy metals, natural biological metal chelators, metalloenzymes, heavy metal resistance mechanisms, biomineralization, the influence of metals on bacterial virulence, and the impact of the biosphere of mineral production and cycling. The text will be of benefit to academic and industrial microbiologists, researchers in mining and metal industries, environmentalists, geologists, toxicologists and biogeochemists.



The Alkali Metal Ions: Their Role for Life

Author : Astrid Sigel

Publisher : Springer

Page : 663 pages

File Size : 33,71 MB

Release : 2016-02-09

Category : Science

ISBN : 3319217569

Get eBook

Book Description

MILS-16 provides an up-to-date review of the impact of alkali metal ions on life. Their bioinorganic chemistry and analytical determination, the solid state structures of bio-ligand complexes and the properties of alkali metal ions in solution in the context of all kinds of biologically relevant ligands are covered, this includes proteins (enzymes) and nucleic acids (G-quadruplexes). Minerals containing sodium (Na+) and potassium (K+) are abundant in the Earth's crust, making Na+ and K+ easily available. In contrast, the alkali elements lithium (Li+), rubidium, and cesium are rare and the radioactive francium occurs only in traces. Since the intra- and extracellular, as well as the compartmental concentrations of Na+ and K+ differ significantly, homeostasis and active transport of these ions are important; this involves transporters/carriers and pore-forming ion channel proteins. Systems like Na+/K+-ATPases, H+/K+-ATPases or Na+/H+ antiporters are thoroughly discussed. The role of K+ in photosynthesis and the role of Na+ in charging the "battery of life" are pointed out. Also, the relationships between alkali metal ions and diseases (e.g., Parkinson or traumatic brain injury) are covered and the relevance of Li+ salts in medicine (pharmacology and mechanism) is reviewed. This and more is treated in an authoritative and timely manner in the 16 stimulating chapters of Volume 16, The Alkali Metal Ions: Their Role for Life, which are written by 44 internationally recognized experts from 12 nations. The impact of this vibrant research area is manifested in nearly 3000 references, over 30 tables and more than 150 illustrations (two thirds in color). MILS-16 also provides excellent information for teaching. Astrid Sigel, Helmut Sigel, and Roland K. O. Sigel have long-standing interests in Biological Inorganic Chemistry. Their research focuses on metal ion interactions with nucleotides and nucleic acids and on related topics. They edited previously 44 volumes in the series Metal Ions in Biological Systems.



Metal Ions in Biochemistry

Author : Pabitra Krishna Bhattacharya

Publisher : CRC Press

Page : 428 pages

File Size : 34,41 MB

Release : 2020-12-13

Category : Science

ISBN : 1000292665

Get eBook

Book Description

The second edition of Metal Ions in Biochemistry deals with the multidisciplinary subject of bio-inorganic chemistry, encompassing the disciplines of inorganic chemistry, biochemistry and medicine. The book deals with the role of metal ions in biochemistry, emphasising that biochemistry is mainly the chemistry of metal-biochemical complexes. Hence, the book starts with the structures of biochemicals and the identification of their metal binding sites. Thermodynamic and kinetic properties of the complexes are explained from the point of view of the nature of metal-ligand bonds. Various catalytic and structural roles of metal ions in biochemicals are discussed in detail. Features The role of Na+ and K+ in brain chemistry. The role of zinc insulin in glucose metabolism and its enhancement by vanadium and chromium compounds. Discussion of the role of zinc signals, zinc fingers and cascade effect in biochemistry. Haemoglobin synthesis and the role of vitamin B12 in it. The role of lanthanides in biochemical systems. A detailed discussion of the role of non-metals in biochemistry, a topic missing in most of the books on bio-inorganic chemistry. The study of bio-inorganic chemistry makes biochemists rethink the mechanistic pathways of biochemical reactions mediated by metal ions. There is a realisation of the role of metal complexes and inorganic ions as therapeutics such as iron in leukaemia, thalassemia and sickle cell anaemia, iodine in hypothyroidism and zinc, vanadium and chromium in glucose metabolism. The most recent realisation is of the use of zinc in the prevention and treatment of COVID-19.



Metal Ions in Biological Systems

Author : Helmut Sigel

Publisher : CRC Press

Page : 416 pages

File Size : 14,65 MB

Release : 1986-02-21

Category : Science

ISBN : 9780824775407

Get eBook

Book Description

Metal Ions in Biological Systems is devoted to increasing our understanding of the relationship between the chemistry of metals and life processes. The volumes reflect the interdisciplinary nature of bioinorganic chemistry and coordinate the efforts of researchers in the fields of biochemistry, inorganic chemistry, coordination chemistry, environmental chemistry, biophysics, pharmacy, and medicine. Volumes deal with such topics as the formation, stability, structure, and reactivity of biological compounds of low and high molecular weight containing metal ions; the metabolism and transport of metal ions and their complexes; and new models of complicated natural structures and processes. Volume 21 describes the underlying theories of nuclear magnetic resonance (NMR), promoting a wider use of NMR in studies of paramagnetic species. In six concise chapters by leading international authorities, Applications of Nuclear Magnetic Resonance to Paramagnetic Species outlines the most recent developments regarding the use of nuclear relaxation as a source for structural information ... examines studies of magnetically coupled metalloproteins and metal-porphyrin induced dipolar shifts for conformational analysis ... and evaluates the potential of paramagnetic ions as agents for enhancing NMR image contrast. With over 500 references that facilitate further research, Applications of Nuclear Magnetic Resonance to Paramagnetic Species is an essential resource for scientists and students in such disciplines as biophysics; bioinorganic, inorganic, and coordination chemistry; biochemistry; molecular biology; and enzymology. Book jacket.



Binding, Transport and Storage of Metal Ions in Biological Cells

Author : Wolfgang Maret

Publisher : Royal Society of Chemistry

Page : 990 pages

File Size : 45,87 MB

Release : 2014-07-09

Category : Science

ISBN : 1782622829

Get eBook

Book Description

Metal ions play key roles in biology. Many are essential for catalysis, for electron transfer and for the fixation, sensing, and metabolism of gases. Others compete with those essential metal ions or have toxic or pharmacological effects. This book is structured around the periodic table and focuses on the control of metal ions in cells. It addresses the molecular aspects of binding, transport and storage that ensure balanced levels of the essential elements. Organisms have also developed mechanisms to deal with the non-essential metal ions. However, through new uses and manufacturing processes, organisms are increasingly exposed to changing levels of both essential and non-essential ions in new chemical forms. They may not have developed defenses against some of these forms (such as nanoparticles). Many diseases such as cancer, diabetes and neurodegeneration are associated with metal ion imbalance. There may be a deficiency of the essential metals, overload of either essential or non-essential metals or perturbation of the overall natural balance. This book is the first to comprehensively survey the molecular nature of the overall natural balance of metal ions in nutrition, toxicology and pharmacology. It is written as an introduction to research for students and researchers in academia and industry and begins with a chapter by Professor R J P Williams FRS.



Metal Ions in Biological Systems

Author : Astrid Sigel

Publisher : CRC Press

Page : 578 pages

File Size : 25,3 MB

Release : 2004-03-26

Category : Science

ISBN : 9780203913703

Get eBook

Book Description

Metal ions are currently used for such applications as diabetes, anti-inflammatory, rheumatoid arthritis, psychiatric, and anti-ulcer medications, using compounds of vanadium, copper and zinc, gold, lithium, and bismuth, respectively. This text explores these applications in addition to an assessment of chelation therapy, uses in environmental sciences, and the human health effects of metal ion deficiency for several elements-magnesium, calcium, zinc, and iron. Featuring contributions from 29 internationally recognized experts, this book offers a timely, authoritative look at ionic complexes in medicine.



Multiplets of Transition-Metal Ions in Crystals

Author : Satoru Sugano

Publisher : Elsevier

Page : 348 pages

File Size : 29,36 MB

Release : 2012-12-02

Category : Science

ISBN : 0323154794

Get eBook

Book Description

Multiplets of Transition-Metal Ions in Crystals provides information pertinent to ligand field theory. This book discusses the fundamentals of quantum mechanics and the theory of atomic spectra. Comprised of 10 chapters, this book starts with an overview of the qualitative nature of the splitting of the energy level as well as the angular behavior of the wavefunctions. This text then examines the problem of obtaining the energy eigenvalues and eigenstates of the two-electron systems, in which two electrons are accommodated in the t2g and eg shells in a variety of ways. Other chapters discuss the ligand-field potential, which is invariant to any symmetry operation in the group to which symmetry of the system belongs. This book discusses as well the approximate method of expressing molecular orbitals (MO) by a suitable linear combination of atomic orbitals (AO). The final chapter discusses the MO in molecules and the self-consistent field theory of Hartree–Fock. This book is a valuable resource for research physicists, chemists, electronic engineers, and graduate students.



Metal Ions in Gene Regulation

Author : Simon Silver

Publisher : Springer Science & Business Media

Page : 479 pages

File Size : 28,94 MB

Release : 2012-12-06

Category : Science

ISBN : 1461559936

Get eBook

Book Description

This is the first volume on the role of metal ions in regulating genes to focus not only on toxicity effects of metals but also on the role of metal ions in normal metabolisms, in both prokaryotes and in eukaryotes. This book is a comprehensive treatment of the role of metal ions in gene regulation, and it will be of great utility for those doing basic biological and biomedical research.