Gertz I. Likhtenshtein – författare
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11 produkter
11 produkter
518 kr
Skickas inom 7-10 vardagar
Physical labels such as stable nitroxide radicals, luminescent and photochromic chromophores, so-called Mössbauer atoms and electron-dense assemblies of heavy atoms have proved to be effective tools in solving many problems at the molecular level in biological systems. These physical labels are used as 'molecular rulers' to measure the distances between chosen groups and to measure the size, form and microrelief of objects. By providing information about these factors, the label provides information that can help the scientist to understand the structure of membranes, nucleic acids, enzymes and proteins and how they function. This 1993 volume covers all aspects of this field: the theoretical bases, the experimental techniques, and it also shows how to interpret the resulting data. It also critically discusses some recent results obtained with these techniques and gives an analysis of likely developments in the future.
1 447 kr
Skickas inom 7-10 vardagar
Physical labels such as stable nitroxide radicals, luminescent and photochromic chromophores, so-called Mössbauer atoms and electron-dense assemblies of heavy atoms have proved to be effective tools in solving many problems at the molecular level in biological systems. These physical labels are used as 'molecular rulers' to measure the distances between chosen groups and to measure the size, form and microrelief of objects. By providing information about these factors, the label provides information that can help the scientist to understand the structure of membranes, nucleic acids, enzymes and proteins and how they function. This 1993 volume covers all aspects of this field: the theoretical bases, the experimental techniques, and it also shows how to interpret the resulting data. It also critically discusses some recent results obtained with these techniques and gives an analysis of likely developments in the future.
1 073 kr
Skickas inom 10-15 vardagar
"New Trends in Enzyme Catalysis and Biomimetic Chemical Reactions" embraces modern areas of enzyme catalysis where other books in the field concentrate mainly on kinetic, bioorganic and biochemical aspects of the enzyme catalysis and do not cover biophysical and physicochemical problems. Topics covered include: modern physical and kinetic methods of investigation, contemporary theories of elementary chemical processes in enzymes, structure, dynamics and action mechanism of enzyme active sites, concept of pretransition state, theory of long-range electron transfer and proton translocation, mechanisms of "tough" biochemical reactions (dinitrogen reduction, light energy conversation, water photooxidation, hydroxilation), the achievements and problems of biomimetic chemical reactions.
1 073 kr
Skickas inom 10-15 vardagar
New Trends in Enzyme Catalysis and Biomimetic Chemical Reactions embraces modern areas of enzyme catalysis where other books in the field concentrate mainly on kinetic, bioorganic and biochemical aspects of the enzyme catalysis and do not cover biophysical and physicochemical problems. Topics covered include: -modern physical and kinetic methods of investigation, -contemporary theories of elementary chemical processes in enzymes, -structure, dynamics and action mechanism of enzyme active sites, -concept of pretransition state, -theory of long-range electron transfer and proton translocation, -mechanisms of "tough" biochemical reactions (dinitrogen reduction, light energy conversation, water photooxidation, hydroxilation), -the achievements and problems of biomimetic chemical reactions.
1 712 kr
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Written by a pioneer in the development of spin labeling in biophysics, this expert book covers the fundamentals of nitroxide spin labeling through cutting-edge applications in chemistry, physics, materials science, molecular biology, and biomedicine.
1 712 kr
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Written by a pioneer in the development of spin labeling in biophysics, this expert book covers the fundamentals of nitroxide spin labeling through cutting-edge applications in chemistry, physics, materials science, molecular biology, and biomedicine.
1 712 kr
Skickas inom 10-15 vardagar
This book embraces all physiochemical aspects of the structure and molecular dynamics of water, focusing on its role in biological objects, e.g.
1 712 kr
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This book embraces all physiochemical aspects of the structure and molecular dynamics of water, focusing on its role in biological objects, e.g.
1 926 kr
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Subsequent chapters of the book are devoted to a general overview of vital enzyme processes, methods of enzyme kinetic reactions, the theory of elementary mechanisms, oriental, dynamic and polar factors affecting enzyme catalysts, as well as the current status and prospects of enzyme chemical modeling.
1 618 kr
Skickas inom 5-8 vardagar
Finally filling a gap in the literature for a text that also adopts the chemist's view of this hot topic, Professor Likhtenshtein, an experiencedauthor and internationally renowned scientist, considers different physical and engineering aspects in solar energy conversion. From theory to real-life systems, he shows exactly which chemical reactions take place when converting light energy, providing an overview of the chemical perspective from fundamentals to molecular harvesting systems and solar cells. This essential guide will thus help researchers in academia and industry better understand solar energy conversion, and so ultimatelyhelp this promising, multibillion dollar fi eld to expand. From the contents:* Electron Transfer Theories* Principle Stages of Photosynthetic Light Energy Conversion* Photochemical Systems of Light Energy Conversion* Redox Processes on Surface of Semiconductors and Metals* Dye-Sensitized Solar Cells* Photocatalytic Reduction and Oxidation of Water
1 073 kr
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"Chemical physics is a science of the physical foundations of chemical transformations" (N. N. Semenov). The main objective of chemical physics is to disclose the detailed mechanism of chemical reactions and to learn to control these processes. The physico-chemical approach hinges upon the extensive application of methods of molecular physics and chemical kinetics. Based originally on simple gas-phase processes, chemical physics gradually extended its sphere of interest to liquid-phase reactions and to processes taking place in solids, including polymers. At present, we witness the fact that the ideas and methods of this science penetrate deeper and deeper into modern molecular biology, including enzyme catalysis. This monograph treats, from the standpoint of modern chemical physics, the principal general and individual features of the structure and mechanism of action of various classes of oxidation-reduction (redox) metalloenzymes. There are several reasons for which this branch of science attracts the attention of specialists in various fields - from biologists and those working in medicine to chemists and theoretical physicists. First of all, is the enormous biological and biochemical importance of processes catalyzed by metalloenzymes. These include biological ox idation with oxygen, oxidative and photo-phosphorylation, atmospheric nitrogen fixation, assimilation of nitrates and sulphites, phototransport of electrons, hydrogen evolution and hydrogenation and photo-oxida tion of water, which is far from a complete list of such processes.