Download or read book Singlet Oxygen UV A and Ozone written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Singlet Oxygen UV A and Ozone written by Lester Packer and published by Academic Press. This book was released on 2000-06-27 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in understanding the biological role of singlet oxygen in the pathways of cellular responses to ultraviolet-A radiation: its key position in photodynamical effects, and its generation by photochemical (dark) reactions, e.g. by cells of the immune system such as eosinophils and macrophages, are the focus of this volume. The new methods and techniques responsible for the rapid progress in this area are presented. The critically acclaimed laboratory standard for more than forty years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences.
Download or read book Oxidation of Organic Compounds written by International Oxidation Symposium, San Francisco,1967 and published by . This book was released on 1968 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Singlet oxygen written by Ronald Howard De Strulle and published by . This book was released on 1997 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Gas phase Generation of Singlet Oxygen by the Reaction of Amines with Ozone written by Wanrong Lin and published by . This book was released on 1992 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidant Formation in the Generation of Ozone written by Bruce W. Gay (Jr) and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ozone samples generated by UV photolysis and silent electric discharge upon air or oxygen were examined to determine if other oxidants were formed. Chemical and physical methods (IR and UV spectroscopy) failed to show the presence of such oxidants. Absence of such oxidants was also indicated by the excellent agreement between analytical results from UV photometry and gas phase titration. Ozone measurements by the colorimetric 1 percent neutral buffered potassium iodide method was biased 10-30 percent positive compared to UV photometry. A colorimetric method employing a solution of cyclohexene-dimethanol and ferrous ammonium sulfate (CHD), which is claimed to measure singlet oxygen and/or other oxidants along with ozone, proved to have a different stoichiometry in the presence and absence of oxygen. These latter results were interpreted to mean that the high response of CHD to ozonized air/oxygen streams does not indicate the presence of non-ozone oxidants; rather it reflects a greater-than-stoichiometric response of the CHD reagent to ozone.
Download or read book Singlet Oxygen and Ozone Generation by an Electron beam controlled Discharge in Pure Oxygen written by Gaerard Fournier and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric and Aerosol Chemistry written by V. Faye McNeill and published by Springer. This book was released on 2014-07-08 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christian George, Barbara D’Anna, Hartmut Herrmann, Christian Weller, Veronica Vaida, D. J. Donaldson, Thorsten Bartels-Rausch, Markus Ammann - Emerging Areas in Atmospheric Photochemistry. Lisa Whalley, Daniel Stone, Dwayne Heard - New Insights into the Tropospheric Oxidation of Isoprene: Combining Field Measurements, Laboratory Studies, Chemical Modelling and Quantum Theory. Neil M. Donahue, Allen L. Robinson, Erica R. Trump, Ilona Riipinen, Jesse H. Kroll - Volatility and Aging of Atmospheric Organic Aerosol. P. A. Ariya, G. Kos, R. Mortazavi, E. D. Hudson, V. Kanthasamy, N. Eltouny, J. Sun, C. Wilde - Bio-Organic Materials in the Atmosphere and Snow: Measurement and Characterization. V. Faye McNeill, Neha Sareen, Allison N. Schwier - Surface-Active Organics in Atmospheric Aerosols.
Download or read book The Ultraviolet Flash Photolysis of Ozone and the Reactions of O singlet D and O2 singlet Sigma sub G written by David R. Snelling and published by . This book was released on 1973 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decomposition of ozone has been studied following a short duration u.v. light pulse. From an analysis of the O3 decomposition curves for O3:N2, O3:N2:O2 and O3:O2 mixtures the relative rate constant for O(singlet D) deactivation by N2 and O2 is given. It is also shown that O2(singlet Sigma(sub g)(+)) is formed in at least 75% of the collisions in which O(singlet D) is deactivated by O2. The rate constants of the reactions O2(singlet Sigma(sub g)(+)) + O3 to 2O2 + O and O + O2 + O2 to O3 + O2 are found. (Modified author abstract).
Download or read book Mechanism of Singlet Molecular Oxygen Formation From Photolysis of Ozone At 2537 Angstrom Units written by Defence Research Establishment Valcartier and published by . This book was released on 1971 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Reactions Forming Singlet Oxygen Metastables in Ozone Reactions with O NO and H written by Robert A. Fluegge and published by . This book was released on 1971 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas phase reactions leading to the formation of singlet metastables in oxygen are being experimentally studied. A flowing afterglow system coupled with titration techniques, metallic surface recombination, and direct sampling and separation of the reactants and products according to their g-factors are used to further specify these reactions. Ground state species have been dominantly found in the H + O(3), NO + O(3) and O + O(3) reactions. (Author).
Download or read book Singlet Molecular Oxygen written by Arthur P. Schaap and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature written by Olga V. Frank-Kamenetskaya and published by Springer Nature. This book was released on 2019-08-29 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book represents a collection of papers presented at VI International Symposium "Biogenic - abiogenic interactions in natural and anthropogenic systems" that was held on 24-27 September 2018 in Saint Petersburg (Russia). Papers in this book cover a wide range of topics connecting with interactions between biogenic and abiogenic components in lithosphere, biosphere and technosphere. The main regarding topics are following: methods for studying the interactions between biogenic and abiogenic components; geochemistry of biogenic-abiogenic systems; biomineralization and nature-like materials and technologies; medical geology; biomineralogy and organic mineralogy; biomineral interactions in soil; biodeterioration of natural and artificial materials; biomineral interactions in extreme environment.
Download or read book Singlet Oxygen written by Santi Nonell and published by Royal Society of Chemistry. This book was released on 2016-01-27 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meeting the desire for a comprehensive book that collects and curates the vast amount of knowledge gained in the field of singlet oxygen, this title covers the physical, chemical and biological properties of this reactive oxygen species and also its increasingly important applications across chemical, environmental and biomedical areas.The editors have a long and distinguished background in the field of singlet oxygen chemistry and biomedical applications, giving them a unique insight and ensuring the contributions attain the highest scientific level.The book provides an up to date reference resource for both the beginner and experienced researcher and crucially for those working across disciplines such as photochemistry, photobiology and photomedicine.
Download or read book Reactive Oxygen Species in Plant Signaling written by Luis A. del Río and published by Springer Science & Business Media. This book was released on 2009-06-22 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxygen (O ) appeared in significant amounts in the Earth’s atmosphere over 2. 2 2 billion years ago, largely due to the evolution of photosynthesis by cyanobacteria (Halliwell 2006). The O molecule is a free radical, as it has two impaired electrons 2 that have the same spin quantum number. This spin restriction makes O prefer to 2 accept its electrons one at a time, leading to the generation of the so-called reactive oxygen species (ROS). The chemical nature of these species dictates that they can create damage in cells. This has contributed to the creation of the “oxidative stress” concept; in this view, ROS are unavoidable toxic products of O metabolism and 2 aerobic organisms have evolved antioxidant defences to protect against this tox- ity (Halliwell 1981; Fridovich 1998). Indeed, even in present-day plants, which are full of antioxidants, much of the protein synthetic activity of chloroplasts is used to replace oxidatively damaged D1 and other proteins (Halliwell 2006). Yet, the use of the “oxidative stress” term implies that ROS exert their effects through indiscriminate widespread inactivation of cellular functions. In this context, ROS must not be able to react with lipids, proteins or nucleic acids in order to avoid any damage to vital cellular components. However, genetic evidence has suggested that, in planta, purely physicoche- cal damage may be more limited than previously thought (Foyer and Noctor 2005).
Download or read book Advances in Microbial Physiology written by and published by Academic Press. This book was released on 2011-06-26 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Microbial Physiology is one of the most successful and prestigious series from Academic Press, an imprint of Elsevier. It publishes topical and important reviews, interpreting physiology to include all material that contributes to our understanding of how microorganisms and their component parts work. First published in 1967, it is now in its 58th volume. The Editors have always striven to interpret microbial physiology in the broadest context and have never restricted the contents to “traditional views of whole cell physiology. Now edited by Professor Robert Poole, University of Sheffield, Advances in Microbial Physiology continues to be an influential and very well reviewed series. 2009 impact factor of 5.750, placing it 12th in the highly competitive category of microbiology Contributions by leading international scientists The latest research in microbial physiology
Download or read book Ozonation of Water and Waste Water written by Christiane Gottschalk and published by John Wiley & Sons. This book was released on 2010-02-01 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The leading resource on ozone technology, this book contains everything from chemical basics to technical and economic concerns. The text has been updated to include the latest developments in water treatment and industrial processes. Following an introduction, the first part looks at toxicology, reaction mechanisms and full-scale applications, while Part B covers experimental design, equipment and analytical methods, mass transfer, reaction kinetics and the application of ozone in combined processes.
