Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Fernand Dejehet"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 80:481-499
On a determine les facteurs G de transformation de la dithizone, en solution dans des solvants organiques, par irradiation aux σ du 60Co. Dans le chloroforme, aux concentrations de 10−5, 2.10−5 et 10−4 mol.l−1 on trouve respectivement G(–d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddc474666b081b099159dfc7d7f625e8
https://doi.org/10.1002/bscb.19710800518
https://doi.org/10.1002/bscb.19710800518
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 99:535-541
Modifications in the synthesis procedure of calcite involve statistically significant changes in the relative intensities of the EPR lines of the irradiated samples. Of the 6 (or 8) paramagnetic centres produced by γ- (or α-) irradiations, four are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d7904261d1fdcc5ddedc67e80a77a70
https://doi.org/10.1002/bscb.19900990804
https://doi.org/10.1002/bscb.19900990804
Publikováno v:
Applied Radiation and Isotopes. 52:1327-1336
Enamel from 6 different positions in a well preserved elephant tooth from the Karlich-Seeufer site in Germany has been irradiated up to 32 kGy. The X-band (v = 9.5 GHz) ESR spectra of two subsamples have been decomposed into three real components wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65c1383889f9f0d41651a0a8276c35fd
https://doi.org/10.1016/s0969-8043(00)00091-9
https://doi.org/10.1016/s0969-8043(00)00091-9
Publikováno v:
Journal de Chimie Physique et de Physico-Chimie Biologique. 96:741-753
Calcium carbonate monohydrate spherulites (similar to 10(2) mu m diameter) with different magnesium contents were synthesized from artificial seawater, Stable spherulites are only obtained if [Mg]/[Ca] greater than or equal to 1 - 1.3 in the mother s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9f214fb80437c4c56a32e81ef3b5710
https://doi.org/10.1051/jcp:1999168
https://doi.org/10.1051/jcp:1999168
Autor:
Harold M. Swartz, Henryk Taper, Bernard Gallez, René Debuyst, Fuminori Goda, Roger Demeure, Tadeusz Walczak, Ke Jian Liu, Fernand Dejehet
Publikováno v:
Magnetic Resonance in Medicine. 40:152-159
The development of oxygen-sensitive paramagnetic materials is being pursued actively because of their potential applications in in vivo EPR oximetry. Among these materials, several charcoals and carbohydrate chars are of special interest because of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8ca8bd84208299f0509aa0cf59f9d1c
https://doi.org/10.1002/mrm.1910400120
https://doi.org/10.1002/mrm.1910400120
Autor:
J L De Keyser, Pierre Dumont, Bernard Gallez, René Debuyst, Roger Demeure, V. Lacour, Fernand Dejehet
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 2:61-68
Synthetic methods are described leading to polysubstituted spin labeled polysaccharides (dextran 70, 110, 200, and arabinogalactan), which are potential contrast agents in magnetic resonance imaging. The nitroxyl moieties bound to a polysaccharide yi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33c9b39d30abdc9945215b994059689c
https://doi.org/10.1007/bf01709801
https://doi.org/10.1007/bf01709801
Autor:
Pierre Dumont, Roger Demeure, Fernand Dejehet, Bernard Gallez, J L De Keyser, René Debuyst, V. Lacour
Publikováno v:
Magnetic Resonance Imaging. 12:61-69
In this study, we report the synthesis and the evaluation as MRI contrast agent of arabinogalactan/pyrrolidinoxyl radicals (PCA) covalent adduct (SLAG:Spin Labelled ArabinoGalactan). Arabinogalactan was used as targeting device, as it is recognized b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f81d1e8e565696f7fcc794deb1822df4
https://doi.org/10.1016/0730-725x(94)92353-1
https://doi.org/10.1016/0730-725x(94)92353-1
Autor:
Cécile Grandin, Bernard E. Van Beers, Bernard Gallez, Fernand Dejehet, Jacques Pringot, Henryk Taper, Roger Demeure, René Debuyst, Pierre Dumont
Publikováno v:
Magnetic Resonance in Medicine. 30:592-599
In this study, we report the synthesis and the evaluation as MRI contrast agent of a new compound (nitroxyl fatty acid, NFA), where a pyrrolidinoxyl radical (3-carboxy-proxyl, PCA) is linked to a fatty acid moiety. Fatty acids were selected as vector
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1fede3d2a29f09c875e5f2036d3dd7a
https://doi.org/10.1002/mrm.1910300510
https://doi.org/10.1002/mrm.1910300510
Publikováno v:
Applied Radiation and Isotopes. 44:293-297
When spherulitic grains of (CaCO3.H2O)-C-12, C-13 are gamma-irradiated at room temperature, only three isotropic paramagnetic species are produced: 1) the tumbling CO3- radical with g = 2.0115 and A13c = 11.4 gauss; 2) the tumbling CO2- radical with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::898c2534e0e31fa888c34f31a44d290c
https://doi.org/10.1016/0969-8043(93)90234-2
https://doi.org/10.1016/0969-8043(93)90234-2
Publikováno v:
Toxicology Letters. 63:35-45
Three piperidinoxyl radicals were found to be directly mutagenic in Salmonella typhimurium TA 100, one pyrrolidinoxyl compound had weaker activity, and two other pyrrolidinoxyl derivatives did not produce an increase of the spontaneous revertants. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f51f7aeb0e7ade95bb03317cf7da223
https://doi.org/10.1016/0378-4274(92)90105-s
https://doi.org/10.1016/0378-4274(92)90105-s