NDLTD logo NDLTD Union Catalog and Global ETD Search

Global ETD Search

Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

Results

Showing 1 to 20 of 29 for “"Electron paramagnetic resonance spectroscopy"”.

  1. Noninvasive Temperature Measurements Using Electron Paramagnetic Resonance Spectroscopy

    Eckburg, Joseph JohnUniversity of Illinois at Urbana-Champaign2014

    A system has been developed that may be used for non-invasive in vivo temperature measurements in living systems. We use the nitroxide, 3-doxyl-5$\alpha$-cholestane, mixed in 1 mol% cholesterol and 99 mol% methyl docosanoate and encapsulated in proteinaceous microspheres (average diameter $<$2 …

    uiuc Repository record

  2. Multifrequency Electron Paramagnetic Resonance Spectroscopy of Group Viib Carbonyl Radicals

    Rattinger, Gail BethUniversity of Illinois at Urbana-Champaign2014

    … roles in catalytic processes. Multi-frequency electron paramagnetic resonance spectroscopy studies of (.)Mn(CO)(,3){P(n-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Pr)(,3)}(,2') (.)Mn(CO)(,3){P(O-i-Pr)(,3)}(,2) and (.)Re(CO)(,3){P(cy)(,3)}(,2) (cy = cyclohexyl) were …

    uiuc Repository record

  3. High frequency (139.5 GHz) electron paramagnetic resonance spectroscopy of biomolecules

    Bellew, Brendan FrancisMassachusetts Institute of Technology1996

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.

    mit Repository record

  4. Transient and Pulsed Electron Paramagnetic Resonance Spectroscopy on Type I Photosynthetic Reaction Centers

    Siavashi, RezaBrock University2014

    … have been used to study the light induced electron transfer(ET) in Type I photosynthetic reaction centers(RCs). First, pulsed EPR was used to compare PsaA-M688H and PsaB-M668H mutants of Chlamydomonas reinhardtii and Synechosystis sp. PCC 6803.The out-of-phase echo modulation curves …

    brock Repository record

  5. A device for testing the electronic and mechanical properties of conducting polymers with electron paramagnetic resonance spectroscopy

    Powley, Nicholas R. (Nicholas Ransom), 1982-Massachusetts Institute of Technology2004

    … the relationship between the mechanical and electronic properties of conducting polymers with EPR Spectroscopy. The performance of the testing device was explored with a controlled experiment. The results of this experiment suggest that the response of conducting polymer actuators to …

    mit Repository record

  6. Biochemical Studies on the Catalytic Cycle of Cytochrome C Oxidase in Rhodobacter Sphaeroides

    Pecoraro, Catherine MaryUniversity of Illinois at Urbana-Champaign2015

    … the binuclear center were characterized with Electron Paramagnetic Resonance spectroscopy and resonance Raman spectroscopy. The role of tyrosine-288 was discussed in terms of the presence of a covalent linkage between Y288 and H284 and the formation of a tyrosyl radical species in the …

    uiuc Repository record

  7. Rotational Dynamics and Proton Relaxation of MRI Paramagnetic Contrast Agents

    Chen, John Wen-YuehUniversity of Illinois at Urbana-Champaign2015

    … in determining the relaxation characteristics of paramagnetic contrast agents (PCA's) used in magnetic resonance imaging. In this work, a methodology employing continuous wave electron paramagnetic resonance spectroscopy has been developed and established to probe the rotational dynamics of model …

    uiuc Repository record

  8. The role of molybdenum in the formate dehydrogenase of methanobacterium formicicum

    May, Harold DouglasVirginia Polytechnic Institute and State University1987

    … ligand to molybdenum. These results along with electron paramagnetic resonance spectroscopy of the cyanide-inactivated formate dehydrogenase suggest that the the molybdenum ligands of the enzyme are similar to those of xanthine oxidase. The concentration of molybdenum and the level of formate …

    vt Repository record

  9. Porphyrin-DNA as scaffold for nanoarchitecture and nanotechnology

    Nguyen, ThaoNguyenUniversity of Southampton2010

    … industrial applications, e.g. in making optical electronic devices, in artificial photosynthesis or in sensors. In contrast, DNA has only recently been found to be a good scaffold for the construction of functional molecules. Combining the chemical properties of porphyrins and DNA could open the …

    soton Repository record

  10. Probing the conformational changes of the yeast mitochondrial ADP/ATP carrier

    Ashton, Valerie LaurenUniversity of Cambridge2013

    … studies combined with mass spectrometry and electron paramagnetic resonance spectroscopy were tried to probe the closure of the cytoplasmic salt bridge network.

    cambridge Repository record

  11. Structure and Dynamics of AcrA, a Periplasmic Component of a Multidrug Efflux Pump

    Ip, Hermia2010

    … site-directed spin labeling (SDSL)/EPR (electron paramagnetic resonance) spectroscopy is used to investigate the structure and dynamics of AcrA in solution. My results demonstrated that AcrA is a dynamic protein that undergoes pH-dependent and reversible conformational changes. AcrA …

    toronto-retro Repository record

  12. EFFECTS OF RED BLOOD CELLS ON NITRIC OXIDE BIOACTIVITY

    LIU, XIAOHUAWake Forest University2017

    … designed competition experiments and stop-flow spectroscopy to determine that older stored RBCs scavenging NO 1.7-1.8 times faster than fresh stored RBCs. Through computational simulation, to obtain this observed result, the RBC membrane permeability to NO has to increase 5 to 70 folds. Under …

    wfu Repository record

  13. Magnetic Resonance Studies of a Sodium-Ion Battery Cathode: Experiment and Theory

    Bassey, EuanUniversity of Cambridge2022

    … of the evolution of the chemical and electronic structure of NIB cathodes is required. In this thesis, Na₀.₆₇[Mg₀.₂₈Mn₀.₇₂]O₂, a layered cathode material exhibiting fast charge/discharge rates, a large voltage hysteresis and a high reversible capacity, is studied. Experimental …

    cambridge Repository record

  14. Characterization of the major extrapallial fluid protein of the mollusc, Mytilus edulis: Implications for function

    Yin, Yan

    … Mytilus galloprovincialis were investigated by electron paramagnetic resonance spectroscopy and shown to contain semiquinone radicals and Fe(III). In addition, Cu(II) and a second radical (g = 2.007) were found in cultivated threads.</p>

    unh-thes Repository record

  15. Structural Polymorphism in Tau Filaments: An Implication for Neurodegenerative Diseases

    Siddiqua, Ayisha2001

    … labeling of recombinant tau in conjunction with electron paramagnetic resonance spectroscopy was used to obtain structural insights into tau filaments. The studies showed that the filaments of 4R tau and 3R tau share a highly ordered core structure in the third repeat with parallel, in-register …

    denver Repository record

  16. The Binding Pockets of QA and QB in the Photosynthetic Reaction Center of Rba. sphaeroides Probed by Pulsed EPR

    Martin, Erik W.University of Illinois at Urbana-Champaign2011

    … absorption by the reaction center results in electron transfer through a series of cofactors, the final two are identical ubiquinones (QA and QB). Both ubiquinones can be stabilized in their reduced (semiquinone) state allowing for their binding pockets to be studied with EPR (electron …

    uiuc Repository record

  17. Learning the ABC's of Ribose Transport Using Biophysical Methods

    Erramilli, Satchal K

    … ribose uptake. We use site-directed spin-labeled electron paramagnetic resonance spectroscopy and fluorescence binding studies to understand how the motor protein interacts with ATP, and how conformational changes associated with this interaction fuel transport.</p> <p>These studies reveal the …

    purdue-thes Repository record

  18. Metal induced degradation of leather

    Feyisa, Addis Duki2014

    … reduction of V(V) by tannins was obtained using electron paramagnetic resonance spectroscopy.<br/><br/>Results of spectrophotometric studies of polyphenol-metal ion interaction in acidic media indicated that Fe(II) and V(IV) ions act as catalysts in the oxidation of tannins. To explain the …

    northampton Repository record

  19. Role and mechanism of action of the anthocyanin, delphinidin, in protecting endothelial cells against oxidative stress

    Goszcz, KatarzynaUniversity of Edinburgh2016

    … phenolic compounds, including gallic acid. Electron paramagnetic resonance spectroscopy indicated that, if anything, both delphinidin and gallic acid were pro-oxidant rather than antioxidant. High concentrations of both delphinidin and gallic acid induced rapid morphological changes in …

    uhi-uk Repository record

  20. Synthesis of coordination complexes and the use of X-ray diffraction data towards the development of refinement of occupancy of spherical atoms (ROSA), a new approach for the determination of atomic partial charges

    Keller, TaylorTemple University. Libraries2022

    … with X-ray crystallography, ultraviolet-visible spectroscopy (UV-Vis), infrared spectroscopy (IR), circular diochroism (CD), nuclear magnetic resonance spectroscopy (NMR), electron paramagnetic resonance spectroscopy (EPR), and elemental combustion analysis. A simple modification to standard …

    temple Repository record

Page 1 of 2