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Showing 1 to 15 of 15 for “"Phosphorus-31"”.
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Phosphorus-31 NMR Spectroscopy of Parasitic Protozoa
31P NMR spectra have been obtained of various parasitic protozoa including Trypanosoma cruzi, Leishmania major, Trypanosoma brucei, Plasmodium berghei, Toxoplasma gondii, and Cryptosporidium parvum. The unifying features of solution-state 31P NMR spectra of acid extracts of these parasites were …
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Phosphorus-31 nuclear magnetic resonance spectroscopy of human uterus and placenta
… and gynecological disorders. We have used phosphorus-31 NMR spectroscopy on isolated samples of placenta and uterus (myometrium and endometrium). Our studies have revealed interesting correlations between spectral characteristics and the type of tissue studied, normal and abnormal.
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Energy Utilization of Toad Retina: A Hydrogen-1 and Phosphorus-31 NMR Study
… and the fourth summarizes the results of $\sp{31}$P and $\sp1$H NMR experiments, designed to answer the above questions.
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Energy utilization of toad retina: A hydrogen-1 and phosphorus-31 NMR study
Vision is the most important of all human senses. Research concerning the physiology and biochemistry of components of the visual system can lead to advances in the prevention and treatment of diseases. Since the retina is part of the brain, studies of the retina can help provide information about …
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A Phosphorus-31 Nuclear Magnetic Resonance Study of Amido and Trichlorophosphazo Derivatives of Trimeric Phosphonitrilic-Chloride
Made available in DSpace on 2014-12-09T17:35:22Z (GMT). No. of bitstreams: 1 6604174.pdf: 3659521 bytes, checksum: 2826ee0d848bcfab787ef14cf705b99d (MD5) Previous issue date: 1965
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In vivo studies of metabolism and visual phototransduction of the isolated toad retina by phosphorus-31 nuclear magnetic resonance spectroscopy
… studies. Thus, I measured the concentrations of phosphorus-metabolites to see if these change with light adaptation (Chapter 5) and if cGMP could be observed in vivo (Chapter 6).
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Absolute Concentration Determination of Phosphorus Metabolites in the Langendorff-Perfused Rabbit Heart by Phosphorus-31 Nuclear Magnetic Resonance (Quantification, Metabolism, Intact Tissue, Nmr)
The concentrations of mobile high energy phosphorus metabolites and intracellular pH of Langendorff-perfused rabbit heart have been determined under control and reduced flow conditions. Absolute concentration determination was accomplished by Lorentzian lineshape analysis after development of …
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Advancement of 31P Magnetic Resonance Spectroscopy Using GRAPPA Reconstruction on a 3D Volume
… which alter the intracellular concentration of phosphorus- 31 (31P) metabolites [1]. It is assumed that such metabolic changes occur prior to physical changes of the tissue. Therefore, information on regional changes of 31P metabolites in the liver, obtained by Magnetic Resonance Spectroscopic …
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The synthesis of fungicidal aminophosphonic acid derivatives
… teres and D. avenae. The proton, carbon-13 and phosphorus-31 nmr spectroscopy of the compounds prepared was examined in detail with carbon-13 proving particularly useful. The carbon-phosphorus coupling constants varied along the alkyl chain in the phosphonopeptides with JPC=145-148 Hz, JPCC=0 Hz …
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Effects of polyphosphates on frozen chickens.
… studied using thin layer chromatography(TLC) and phosphorus-31 Fourier transform nuclear magnetic resonance ([31] P-FTNMR) . The reasons for choosing thesetechniques, and the results of preliminary tests are given.Polyphosphate treatment was found to result in cooked muscles having reduced TBA …
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Complexation of metal salts with phosphorus-containing poly(arylene ether)s
… been developed. FTIR experiments as well as Tl phosphorus (31 P) NMR measurements were conducted to demonstrate the existance of metal complexation in the solid state. The effect of the chemical composition of the chain, type of metal salt, molar concentration of the metal salt, and heating …
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Development of functional DNA-based sensors and investigations into their mechanism
… altered in the presence of Mg2+ and Cd2+. 31P NMR has been used as an additional tool to directly visualize the backbone phosphates since a single PS modification shifts the signal of the phosphate downfield by ~50 ppm. These results, in conjunction, have led to the identification of a …
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Method Development of 13C, 1H and 31P Magnetic Resonance Spectroscopy for use in Traumatic Brain Injury
… TBI was implemented using previously acquired 31P MRS data. It was found that the machine learning algorithms performed well above chance level. Given the heterogeneous nature of pathology underlying TBI a key feature of machine learning methods is their ability to learn from multiple factors …