Journal ArticleDOI
Detection of the kinetics of biochemical reactions with oxygen using exchange broadening in the ESR spectra of nitroxide radicals.
TLDR
To detect changes in the oxygen concentration during biochemical reactions, the exchange broadening in the ESR spectra of nitroxide radicals caused by the dissolved oxygen, has been used.About:
This article is published in Biochimica et Biophysica Acta.The article was published on 1977-04-11. It has received 88 citations till now. The article focuses on the topics: Nitroxide mediated radical polymerization & Oxygen.read more
Citations
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Journal ArticleDOI
Oxygen in mammalian tissue: methods of measurement and affinities of various reactions.
TL;DR: The advantages and limitations of the currently available methods for measuring oxygen in mammalian tissue and bodily fluids are discussed, including in vivo spectrophotometry of intrinsic redox systems, manometry and tonometry, and mass spectroscopy.
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The measurement of oxygen in vivo using EPR techniques
TL;DR: In this article, the physical basis and biological applications of in vivo EPR oximetry are reviewed, with particular emphasis on the use of EPR spectroscopy at 1200 MHz using particulate paramagnetic materials for the repetitive and non-invasive measurement of pO2 in tissues.
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Photoinduced oxygen consumption in melanin systems. Action spectra and quantum yields for eumelanin and synthetic melanin.
T. Sarna,R. C. Sealy +1 more
TL;DR: The first quantitative measurements of the wavelength dependence of oxygen consumption in systems containing eumelanin and synthetic DOPA melanin are reported, indicating that the major chromophore responsible for oxygen consumption is the same for both kinds of material.
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Theory, Instrumentation, and Applications of Electron Paramagnetic Resonance Oximetry
Rizwan Ahmad,Periannan Kuppusamy +1 more
TL;DR: The biological applications for EPR oximetry have been rapidly growing and now include monitoring tumor oxygenation for determining cancer-treatment efficacy and measuring tissue oxygen for estimating the extent of myocardial injury during both ischemia and subsequent reperfusion
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Interaction of melanin with oxygen
TL;DR: Treatment that should have greatly reduced the number of hydroquinone subunits had only small inhibitory effects on oxygen consumption, indicating that other mechanisms must also be important.
References
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Journal ArticleDOI
Studies of Heisenberg Spin Exchange in ESR Spectra. I. Linewidth and Saturation Effects
TL;DR: In this paper, the effects of Heisenberg spin exchange on the linewidths of the tetracyanoethylene anion (TCNE−) radical and the di−tert-butyl nitroxide (DTBN) radical in both dimethoxyethane (DME) and tetrahydrofuran (THF) are investigated.
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Preparation and some properties of isolated rat liver cells
TL;DR: The results demonstrate that the preparation procedure developed yields cells in higher amounts in apparently better morphological condition and with biochemical functions comparable to those of the intact tissue.