Download or read book Phosphodiester Hydrolysis and DNA Cleavage with Copper II Macrocycles written by Ta-Sheng Andrew Tseng and published by . This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Complex DNA Interactions written by Nick Hadjiliadis and published by John Wiley & Sons. This book was released on 2009-03-30 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal ions and metal complexes have long been recognized ascritically important components of nucleic acid chemistry, both inregulation of gene expression and as promising therapeutic agents.Understanding how metal complexes interact with DNA has become anactive research area at the interface between chemistry, molecularbiology and medicine. Metal Complex - DNA Interactions provides a comprehensiveoverview of this increasingly diverse field, presenting recentdevelopments and the latest research with particular emphasis onmetal-based drugs and metal ion toxicity. The text is divided intofour parts: Basic Structural and Kinetic Aspects: includes chapterson sequence-selective metal binding to DNA and thermodynamicmodels. Medical Applications: focuses on anticancer platinumdrugs, including discussions on DNA repair in antitumor effects ofplatinum drugs and photo-dynamic therapy. DNA-Recognition - Nucleases and Sensor: describesprobes for DNA recognition, artificial restriction agents,metallo-DNAzymes for metal sensing applications and metal iondependent catalysis in nucleic acid enzymes. Toxicological Aspects: deals with structural studies ofmercury–DNA interactions, chromium-induced DNA damage andrepair, and the effect of arsenic and nickel on DNAintegrity. This book will be a valuable resource for academic researchersand professionals from a range of pharmaceutical and chemicalindustries, particularly those involved in the development of newand less toxic anticancer metallo-drugs, and in the field ofenvironmental and toxicological chemistry.
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.
Download or read book Macrocyclic Chemistry written by K. Gloe and published by Springer Science & Business Media. This book was released on 2005-12-05 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macrocyclic Chemistry: Current Trends and Future Perspectives illustrates essential concepts in this expanding research field covering both basic and applied studies. Written by well-known experts from around the world, the topics of the chapters range from new macrocyclic architectures with different functions and self-assembly processes through to the modeling and dynamics of such systems. The content also reflects on application possibilities in analytical chemistry, separation processes, material preparation and medicine. Thus this book serves as a creative source of research strategies and methodic tools. Providing an excellent overview of the field, this book will be a valuable resource for researchers in industry and academic institutions as well as for teachers of science and graduate students. This book is devoted to the long-standing tradition of the International Symposia on Macrocyclic Chemistry (ISMC) and published to coincide with the 30th meeting, Dresden, Germany.
Download or read book Inorganic Chemical Biology written by Gilles Gasser and published by John Wiley & Sons. This book was released on 2014-04-14 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding, identifying and influencing the biological systems are the primary objectives of chemical biology. From this perspective, metal complexes have always been of great assistance to chemical biologists, for example, in structural identification and purification of essential biomolecules, for visualizing cellular organelles or to inhibit specific enzymes. This inorganic side of chemical biology, which continues to receive considerable attention, is referred to as inorganic chemical biology. Inorganic Chemical Biology: Principles, Techniques and Applications provides a comprehensive overview of the current and emerging role of metal complexes in chemical biology. Throughout all of the chapters there is a strong emphasis on fundamental theoretical chemistry and experiments that have been carried out in living cells or organisms. Outlooks for the future applications of metal complexes in chemical biology are also discussed. Topics covered include: • Metal complexes as tools for structural biology • IMAC, AAS, XRF and MS as detection techniques for metals in chemical biology • Cell and organism imaging and probing DNA using metal and metal carbonyl complexes • Detection of metal ions, anions and small molecules using metal complexes • Photo-release of metal ions in living cells • Metal complexes as enzyme inhibitors and catalysts in living cells Written by a team of international experts, Inorganic Chemical Biology: Principles, Techniques and Applications is a must-have for bioinorganic, bioorganometallic and medicinal chemists as well as chemical biologists working in both academia and industry.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Artificial Nucleases written by Marina A. Zenkova and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 304 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 Nanozymes Next Wave of Artificial Enzymes written by Xiaoyu Wang and published by Springer. This book was released on 2016-07-27 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamental concepts, the latest developments and the outlook of the field of nanozymes (i.e., the catalytic nanomaterials with enzymatic characteristics). As one of today’s most exciting fields, nanozyme research lies at the interface of chemistry, biology, materials science and nanotechnology. Each of the book’s six chapters explores advances in nanozymes. Following an introduction to the rise of nanozymes research in the course of research on natural enzymes and artificial enzymes in Chapter 1, Chapters 2 through 5 discuss different nanomaterials used to mimic various natural enzymes, from carbon-based and metal-based nanomaterials to metal oxide-based nanomaterials and other nanomaterials. In each of these chapters, the nanomaterials’ enzyme mimetic activities, catalytic mechanisms and key applications are covered. In closing, Chapter 6 addresses the current challenges and outlines further directions for nanozymes. Presenting extensive information on nanozymes and supplemented with a wealth of color illustrations and tables, the book offers an ideal guide for readers from disparate areas, including analytical chemistry, materials science, nanoscience and nanotechnology, biomedical and clinical engineering, environmental science and engineering, green chemistry, and novel catalysis.
Download or read book Inorganic Chemistry Editor s Pick 2021 written by Luís D. Carlos and published by Frontiers Media SA. This book was released on 2021-06-24 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 DNA Cleavage with Metal Complexes written by Gail Corinne Silver and published by . This book was released on 1993 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inorganic Chemical Biology written by Gilles Gasser and published by John Wiley & Sons. This book was released on 2014-06-23 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding, identifying and influencing the biological systems are the primary objectives of chemical biology. From this perspective, metal complexes have always been of great assistance to chemical biologists, for example, in structural identification and purification of essential biomolecules, for visualizing cellular organelles or to inhibit specific enzymes. This inorganic side of chemical biology, which continues to receive considerable attention, is referred to as inorganic chemical biology. Inorganic Chemical Biology: Principles, Techniques and Applications provides a comprehensive overview of the current and emerging role of metal complexes in chemical biology. Throughout all of the chapters there is a strong emphasis on fundamental theoretical chemistry and experiments that have been carried out in living cells or organisms. Outlooks for the future applications of metal complexes in chemical biology are also discussed. Topics covered include: • Metal complexes as tools for structural biology • IMAC, AAS, XRF and MS as detection techniques for metals in chemical biology • Cell and organism imaging and probing DNA using metal and metal carbonyl complexes • Detection of metal ions, anions and small molecules using metal complexes • Photo-release of metal ions in living cells • Metal complexes as enzyme inhibitors and catalysts in living cells Written by a team of international experts, Inorganic Chemical Biology: Principles, Techniques and Applications is a must-have for bioinorganic, bioorganometallic and medicinal chemists as well as chemical biologists working in both academia and industry.
Download or read book Concepts and Models in Bioinorganic Chemistry written by Heinz-Bernhard Kraatz and published by Wiley-VCH. This book was released on 2006-07-21 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Destined to set the standard, this book meets the need for a didactic textbook focusing on the role of model systems in bioinorganic chemistry. The first part features concepts in bioinorganic chemistry such as electron transfer, medicinal inorganic chemistry, bioorganometallics and metal DNA complexes, while the second part presents inorganic model chemistry on metallo-enzymes, organized by metal ion. Experts in the pertinent fields provide a didactically well-organized background on relevant biological systems, as well as on their structural, functional and spectroscopic properties. All chapters are similarly structured, each one beginning with a timeline featuring the most important historical facts on the subject, followed by a table of the most significant enzymes. The authors also summarize key developments and open questions within the respective model systems. This book is aimed at senior undergraduate and graduate students in chemistry, biochemistry, life science and related fields.
Download or read book Electron Paramagnetic Resonance of Exchange Coupled Systems written by Alessandro Bencini and published by Springer. This book was released on 2011-12-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to collect in one place as much information as possible on the use of EPR spectroscopy in the analysis of systems in which two or more spins are magnetically coupled. This is a field where research is very active and chemists are elbow-to-elbow with physicists and biologists in the forefront. Here, as in many other fields, the contributions coming from different disciplines are very important, but for active researchers it is sometimes difficult to follow the literature, due to differences in languages, and sources which are familiar to, e. g. , a physicist, are exotic to a chemist. Therefore, an effort is needed in order to provide a unitary description of the many different phenomena which are collected under the title. In order to define the arguments which are treated, it is useful to state clearly what is not contained here. So we do not treat magnetic phenomena in conductors and we neglect ferro- and antiferromagnetic resonance. The basic foundations of EPR spectroscopy are supposed to be known by the reader, while we introduce the basis of magnetic interactions between spins. In the first two chapters we review the foundations of exchange interactions, trying to show how the magnetic parameters are bound to the electronic structure of the interacting centers.
Download or read book Macrocyclic Polyamines written by Xiaoqi Yu and published by John Wiley & Sons. This book was released on 2018-02-20 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive book focusing on synthesis and applications of macrocyclic polyamines and their derivatives Macrocyclic polyamines are a class of widely used important compounds. This is the first book that systematically summarizes the synthesis and applications of macrocyclic polyamines and their analogues, including the properties and synthetic methods of macrocyclic polyamines, chemical nucleases based on macrocyclic polyamines, the derivatives of macrocyclic polyamines as nano-vector materials, macrocyclic polyamines derivatives for bio-imaging, chemical sensors based on macrocyclic polyamines, and other applications of macrocyclic polyamines. Macrocyclic Polyamines: Synthesis and Applications includes most of the studies involving macrocyclic polyamines and their derivatives, and may be used as a reference for the researchers in related fields. It offers in-depth coverage of cyclization modes; special procedures for tetraza macrocyclic compounds; diacids-diamines condensation; oxidative DNA cleaving by macrocyclic polyamines; lipids with cationic MPA headgroups; the derivatives of DOTA, DO3A, and PCTA; receptors for anions; sensors for bioactive molecules; macrocyclic polyamines for solvent extraction and membrane transport of amino acids and their derivatives, electrophoretic separation, and open-tubular CEC; and much more. ?The first book that systematically summarizes the chemistry of macrocyclic polyamines and their derivatives in terms of synthetic methods for their preparation, functionalization, and application in the main fields of chemical sensors, chemical nucleases, drug-delivery, bio-imaging and vector materials ?Provides a comprehensive reference for the researchers working on macrocyclic polyamines ?Offers train of thought in related research fields such as organic chemistry, coordination chemistry, analytical chemistry, supramolecular chemistry, biomaterials, etc. Macrocyclic Polyamines: Synthesis and Applications will not only provide a reference for the researchers working on macrocyclic polyamines, but also offer opportunities for researchers in related research fields to understand the benefits of these key compounds.
Download or read book Cisplatin written by Bernhard Lippert and published by John Wiley & Sons. This book was released on 1999 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: 30 years after its discovery as an antitumor agent, cisplatin represents today one of the most successful drugs in chemotherapy. This book is intended to reminisce this event, to take inventory, and to point out new lines of development in this field. Divided in 6 sections and 22 chapters, the book provides an up-to-date account on topics such as - the chemistry and biochemistry of cisplatin, - the clinical status of Pt anticancer drugs, - the impact of cisplatin on inorganic and coordination chemistry, - new developments in drug design, testing and delivery. It also includes a chapter describing the historical development of the discovery of cisplatin. The ultimate question - How does cisplatin kill a cell? - is yet to be answered, but there are now new links suggesting how Pt binding to DNA may trigger a cascade of cellular reactions that eventually result in apoptosis. p53 and a series of damage recognition proteins of the HMG-domain family appear to be involved. The book addresses the problem of mutagenicity of Pt drugs and raises the question of the possible relevance of the minor DNA adducts, e.g. of interstrand cross-links, and the possible use of trans-(NH3)2Pt(II)-modified oligonucleotides in antisense and antigene strategies. Our present understanding of reactions of cisplatin with DNA is based upon numerous model studies (from isolated model nucleobases to short DNA fragments) and application of a large body of spectroscopic and other physico-chemical techniques. Thanks to these efforts there is presently no other metal ion whose reactions with nucleic acids are better understood than Pt. In a series of chapters, basic studies on the interactions of Pt electrophiles with nucleobases, oligonucleotides, DNA, amino acids, peptides and proteins are reported, which use, among others, sophisticated NMR techniques or X-ray crystallography, to get remarkable understanding of details on such reactions. Reactivity of cisplatin, once bound to DNA and formerly believed to be inert enough to stay, is an emerging phenomenon. It has (not yet) widely been studied but is potentially extremely important. Medicinal bioinorganic chemistry - the role of metal compounds in medicine - has received an enormous boost from cisplatin, and so has bioinorganic chemistry as a whole. There is hardly a better example than cisplatin to demonstrate what bioinorganic chemistry is all about: The marriage between classic inorganic (coordination) chemistry and the other life sciences - medicine, pharmacy, biology, biochemistry. Cisplatin has left its mark also on areas that are generally considered largely inorganic. The subject of mixed-valance Pt compounds is an example: From the sleeping beauty it made its way to the headlines of scientific journals, thanks to a class of novel Pt antitumor agents, the so-called "platinum pyrimidine blues". In the aftermath diplatinum (III) compounds were recognized and studies in large numbers, and now an organometalic chemistry of these diplatinum (III) species is beginning to emerge. The final section of the book is concerned with new developments such as novel di- and trinuclear Pt(II) drugs with DNA binding properties different from those of cisplatin, with orally active Pt(IV) drugs which are presently in clinical studies, and with attempts to modify combinatorial chemistry in such a way that it may become applicable to fast screening of Pt antitumor drugs. The potential of including computational methods in solving questions of Pt-DNA interactions is critically dealt with in the concluding chapter.
Download or read book Encyclopedia of Biology written by Don Rittner and published by Infobase Publishing. This book was released on 2004-08 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains approximately 800 alphabetical entries, prose essays on important topics, line illustrations, and black-and-white photographs.
