Download or read book Ultraviolet Resonance Raman Spectroscopy of Nucleotides written by Daniel Charles Blazej and published by . This book was released on 1978 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Resonance Raman Spectroscopy of the Nucleic Acids written by Stephen Philip Alan Fodor and published by . This book was released on 1985 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Resonance Raman Spectroscopy of the Nucleic Acids and Their Metal Ion Complexes written by Joseph Raymond Perno and published by . This book was released on 1987 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Use of UV Resonance Raman Spectroscopy in the Analysis of Ionizing Radiation induced Damage in DNA written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Raman spectroscopy is a form of vibrational spectroscopy that is capable of probing biological samples at a molecular level. In this work it was used in the analysis of ionizing radiation-induced damage in DNA. Spectra of both simple, short-stranded DNA oligomers (SS-DNA) and the more complicated calf-thymus DNA (CT-DNA) were acquired before and after irradiation to a variety of doses from 0 to ~2000 Gy. In a technique known as ultraviolet resonance Raman spectroscopy (UVRRS), three UV wavelengths of 248, 257 and 264 nm were utilized in order to selectively enhance contributions from different molecular groups within the samples. Assignment of the spectral peaks was aided by the literature, as well as through analysis of UVRR spectra of short strands of the individual DNA bases obtained at each of the three incident UV wavelengths. Difference spectra between the irradiated and unirradiated samples were calculated and the samples exposed to ~2000 Gy showed significant radiation-induced features. Intensity increases of spectral peaks, observed primarily in the CT-DNA, indicated unstacking of the DNA bases and disruption of Watson-Crick hydrogen bonds, while intensity decreases of spectral peaks, observed only in the SS-DNA, indicated both base damage and the loss of structural integrity of the DNA molecule. The high molecular specificity of UVRRS allowed for precise identification of the specific bonds affected by the radiation, and the use of the varying incident wavelengths allowed for the observation of damage to moieties that would otherwise have been excluded. The use of UVRRS shows promise in the study of radiation-induced damage to DNA and would be well suited for extension to the study of more complicated biological systems.

Download or read book Ultraviolet Resonance Raman Spectroscopic Studies of Nucleic Acids and Proteins written by Christine Anne Grygon and published by . This book was released on 1989 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Resonance Raman Spectroscopy of the Nucleicacids written by Stephen Philip Alan Fodor and published by . This book was released on 1985 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Resonance Hyper Raman and Raman Scattering as a Study of Electronic Structure of Polyatomic Molecules written by Christopher Claude Bonang and published by . This book was released on 1993 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultrafast Dynamics of Photoexcited DNA Nucleotides Probed with Femtosecond Stimulated Raman Spectroscopy written by Joohyun Lee and published by . This book was released on 2020 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The interaction between UV light and DNA molecules has been a very attractive research field because of not only the pharmaceutical relevance for UV-induced cancer problems but also the unique ultrafast dynamics of these photochemical systems. DNA molecules have undergone natural selection for millennia, but despite that evolution, their strong absorption of harmful UV light and their critical role in the reproduction of genetic information would seem to be irreconcilable properties. However, the relatively recent discovery that they undergo ultrafast nonradiative decay after absorbing UV light and thereby rapidly quench the excited state and prevent photodamage explains their photostability under UV irradiation. Ultrafast energy dissipation mechanism of DNA helps its photochemistry be very stable despite of countless interaction with sunlight. Spectroscopic tools to monitor ultrafast photo-induced events have become more prevalent and accurate as femtosecond laser techniques have been progressively developed. Until now, the applied methodologies have been inclined to monitor the lifetimes of excited states by femtosecond transient absorption and fluorescence up-conversion spectroscopy because they detect signals using the large cross-sections of electronic transitions. However, how the vibrational structures of excited-state DNA change during the ultrafast energy deactivation event is poorly studied. Here, we investigate this structural picture of the ultrafast dynamics of DNA with femtosecond stimulated Raman spectroscopy (FSRS). FSRS has been a very powerful time-resolved vibrational spectroscopy to monitor structural changes during ultrafast excited-state dynamics. To overcome inherently weak Raman signal, we utilized resonance Raman enhancement to boost the signal intensity with UV and visible Raman pump pulses generated by our whitelight-seeded stimulated Raman shifter with high-pressure hydrogen gas. In UV-resonance FSRS of DNA base monomers, hot ground-state vibrations were not observed but very broad vibrations with time constants comparable with excited-state lifetime were weakly shown in dGMP. In visible-resonance FSRS of dGMP, the broad linewidth signals were consistently observed more clearly with resonance Raman enhancement. The results from the resonance FSRS of dGMP indicate that dGMP assumes a broad distribution of out-of-plane structures during the ultrafast evolution on the excited-state potential energy surface"--Pages ix-xi

Download or read book Radiation Induced Molecular Phenomena in Nucleic Acids written by Manoj Shukla and published by Springer Science & Business Media. This book was released on 2008-05-08 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive theoretical and experimental analysis of UV-radiation and low energy electron induced phenomena in nucleic acid bases (NABs) and base assemblies are presented in this book. NABs are highly photostable; the absorbed energy is dissipated in the form of ultrafast nonradiative decay. This book highlights the possible mechanisms of these phenomena which is important for all living species and discusses technical challenges in exploration of these processes.

Download or read book Ultraviolet Resonance Raman Spectroscopy for Characterization of RNA Structure and Thermodynamics written by Joseph Handen and published by . This book was released on 2012 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biochemical Applications of Raman and Resonance Raman Spectroscopes written by P Carey and published by Elsevier. This book was released on 2012-12-02 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochemical Applications of Raman and Resonance Raman Spectroscopies focuses on the application of Raman and resonance Raman spectroscopies to biochemical problems. The book reviews biological systems and details the application of Raman spectroscopy to biological molecules such as proteins, nucleic acids, and lipids. It also looks at codevelopments of lasers, optics, and electronics that drive advances in experimental Raman spectroscopy, along with the important ramifications of these advances for biochemical applications. This volume is organized into eight chapters and begins with an overview of the theoretical and experimental aspects of Raman spectroscopy, including a very brief explanation of what Raman and resonance Raman spectroscopies are and a discussion of their advantages and disadvantages for biochemical studies. The explanation of the Raman and resonance Raman effects is taken up in more detail in the next chapter, which develops the concept of the vibrational motions of molecules by initially considering mechanical ""ball and spring"" models and goes on to use this concept to formulate a classical model for Raman scattering. The resonance Raman effect is then described by another model which emphasizes the discrete or quantized energy levels available to a molecule. The reader is also introduced to the experimental aspects of Raman spectroscopy and the application of Raman spectroscopy across the entire field of biochemistry. Each chapter contains an outline of the basic chemistry and biochemical nomenclature involved. This book will be of interest to chemists, biochemists, and spectroscopists, as well as graduate students and experienced research workers.

Download or read book Ultraviolet Resonance Raman Spectroscopy of Proteins and Protein Components written by Robert Allen Copeland and published by . This book was released on 1986 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applications of Infrared Raman and Resonance Raman Spectroscopy in Biochemistry written by Frank S. Parker and published by Springer Science & Business Media. This book was released on 1983-10-01 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deep Ultraviolet Resonance Raman Spectroscopy of Membrane Proteins written by Christopher Halsey and published by . This book was released on 2012 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultraviolet Resonance Raman Spectroscopy of Proteinsandprotein Components written by Robert Allen Copeland and published by . This book was released on 1986 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigations of the Interactions of Platinum Anticancer Drugs with Nucleotides Using Ultraviolet Resonance Raman Spectroscopy written by Ronda Lynn Benson and published by . This book was released on 1992 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spectroscopic Techniques for Polymer Characterization written by Yukihiro Ozaki and published by John Wiley & Sons. This book was released on 2022-03-14 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: An insightful exploration of cutting-edge spectroscopic techniques in polymer characterization In Spectroscopic Techniques for Polymer Characterization: Methods, Instrumentation, Applications, a team of distinguished chemists delivers a comprehensive exploration of the vast potential of spectroscopic characterization techniques in polymer research. The book offers a concise outline of the principles, advantages, instrumentation, experimental techniques, and noteworthy applications of cutting-edge spectroscopy. Covering a wide range of polymers, from nylon to complex polymeric nanocomposites, the author presents recent developments in polymer science to polymer, analytical, and material chemists, assisting them in keeping track of the progress in modern spectroscopy. Spectroscopic Techniques for Polymer Characterization contains contributions from pioneers in modern spectroscopic techniques from around the world. The included materials bridge the gap between spectroscopists, polymer scientists, and engineers in academia and industry. The book also offers: A thorough introduction to the progress in spectroscopic techniques, including polymer spectroscopy and near-infrared spectroscopy Comprehensive explorations of topical polymers studied by spectroscopy, including polymer thin films, fluoropolymers, polymer solutions, conductive polymers Practical discussions of infrared imaging, near-infrared imaging, two-dimensional correlation spectroscopy, and far-ultraviolet spectroscopy In-depth examinations of spectroscopic studies of weak hydrogen bonding in polymers Spectroscopic Techniques for Polymer Characterization: Methods, Instrumentation, Applications is a must-read reference for polymer, analytical, and physical chemists, as well as materials scientists and spectroscopists seeking a one-stop resource for polymer characterization using spectroscopic analyses.