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Topic: Gadolinium III iodide


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In the News (Sun 3 Jun 12)

  
  Pharmaceutical compositions comprising texaphyrins - Patent 6069140
This low redox potential of gadolinium texaphyrin is a property of texaphyrin that enhances the amount of radiation damage incurred at the site of the texaphyrin; in the absence of texaphyrin, hydroxyl radicals and hydrated electrons recombine and little radiation damage occurs, whereas in the presence of texaphyrin, hydroxyl radicals are free to cause damage.
Synthesis of the Lutetium (III) Complex of 1.sub.H. The macrocyclic ligand 1.sub.H (14 g, 0.0153 mol) was oxidatively metallated using lutetium(III) acetate hydrate (9.75 g, 0.0230 mol) and triethylamine (22 mL) in air-saturated methanol (1500 mL) at reflux.
iii) Texaphyrin may be particularly effective for treating the hypoxic areas of solid neoplasms because of intrinsic biolocalization and its indifference to the presence or absence of O.sub.2 It may "replace" oxygen as a redox cycle.
www.freepatentsonline.com /6069140.html   (14240 words)

  
 Motexafin Gadolinium Disrupts Zinc Metabolism in Human Cancer Cell Lines -- Magda et al. 65 (9): 3837 -- Cancer Research
Lead-in phase to randomized trial of motexafin gadolinium and whole-brain radiation for patients with brain metastases: centralized assessment of magnetic resonance imaging, neurocognitive, and neurologic end points.
Survival and neurologic outcomes in a randomized trial of motexafin gadolinium and whole-brain radiation therapy in brain metastases.
Preliminary studies of the effects of gadolinium texaphyrin on the growth and radiosensitivity of EMT6 cells in vitro.
cancerres.aacrjournals.org /cgi/content/full/65/9/3837   (5408 words)

  
 Periodic Table : Scholar edition: gadolinium : Compounds
Electronegativity is a measure of the ability of an atom within a molecule to attract electrons to itself.
In compounds of gadolinium (where known), the most common oxidation numbers of gadolinium are: 3.
For each compound, a formal oxidation number for gadolinium is given, but the usefulness of this number is limited for p-block elements in particular.
www.webelements.com /webelements/scholar/elements/gadolinium/compounds.html   (345 words)

  
 C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - IODINE
Potassium iodide (KI) was used as a remedy for goiter (Derbyshire neck), an enlargement of the thyroid gland, as early as 1819.
Silver iodide is used in the preparation of some photographic films.
Peter J. Stang is distinguished professor of chemistry and dean of the College of Science at the University of Utah.
pubs.acs.org /cen/80th/iodine.html   (816 words)

  
 [No title]   (Site not responding. Last check: 2007-10-30)
(iii) If the ID is below the concentration of the saturated solution, but the ID is not, concentrations between the ID and the saturated solution should be used, but these should not be made up by diluting a saturated solution.
(iii) The positive control chemical for the range-finding experiment is Tween 20 At the concentrations suggested for the exposure times stated, it should give a total protein value of 50% of the medium control (30-70% is routinely accepted).
(iii) binding to medium components, such as serum protein, may reduce the availability of the test substance, and this effect will vary according to differences in the concentrations of such components in different batches of medium,
ecvam-sis.jrc.it /IP1685/published/indexed_15.html   (4626 words)

  
 Cardiovascular Magnetic Resonance in Cardiac Amyloidosis -- Maceira et al. 111 (2): 186 -- Circulation
Note that the blood pool is dark, which does not occur in other reported conditions, indicating abnormal gadolinium handling in these patients.
The histological basis of late gadolinium enhancement cardiovascular magnetic resonance in hypertrophic cardiomyopathy.
Gadolinium enhanced cardiovascular magnetic resonance in Anderson-Fabry disease: evidence for a disease specific abnormality of the myocardial interstitium.
circ.ahajournals.org /cgi/content/full/111/2/186   (3864 words)

  
 Macrocyclic metal complex carboxylic acids, their use as well as process for their production - Patent 5919433   (Site not responding. Last check: 2007-10-30)
Z.sup.1 stands for a hydrogen atom or a carboxyl protective group, after cleavage of the optionally present carboxyl protective groups, are reacted in a way known in the art with a metal oxide or metal salt of an element of atomic numbers 58-71.
Of the above-mentioned lanthanides, gadolinium, dysprosium and ytterbium are preferred The reaction of the new macrocyclic metal complex carboxylic acids of formula II to the desired cascade polymer complexes is carried out analogously to methods that are known in the literature, e.g., B. Belleau, G. Malek, J. Amer.
In the blood samples obtained, the concentrations of gadolinium (Gd) and dysprosium (Dy) are measured with the aid of atomic emission spectrometry (ICP-AES) in each case in a parallel manner.
www.freepatentsonline.com /5919433.html   (11464 words)

  
 MatWeb Engineering Materials List
Cerium (III) Carbide, Ce Cerium (III) Chloride, CeCl
Gadolinium (III) Oxide, Gd Gadolinium (III) Telluride, Gd Te
Iridium (III) Oxide, Ir Iridium (III) Sulfide, Ir Iridium (IV) Oxide, IrO
www.matweb.com /search/GetAllMatls.asp?p=6   (416 words)

  
 The University Of The West Indies, St. Augustine, Trinidad & Tobago   (Site not responding. Last check: 2007-10-30)
Is Ammonium Iodide an Ion Pair H3 N+ H...
Ruthenium monomers of monosubstituted squarate ligands containing Ru-S bonds and polymeric gadolinium complexes are subjected to screening for cytotoxicity and use as image enhancers for Magnetic Resonance Imaging (MRI) applications, respectively.
Europium (III) complexes with chelating ligands will be tested for any laser applications while gadolinium (III) complexes will be screened for MRI applications.
www.uwi.tt /fsa/index.php?pageID=1299   (2445 words)

  
 C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - IRIDIUM
The importance of this chemistry, which is described in every modern inorganic and organometallic chemistry textbook, relates to the controlled breaking of bonds for substrate activation in catalysis.
Different lines of investigation on the same problem, first by Robert H. Crabtree and more recently by Craig M. Jensen, William C. Kaska, and Alan S. Goldman, led to success with complexes having different ligands and geometries, but all unified in containing iridium.
Iridium complexes are generally not as good as rhodium analogs for homogeneous catalysis because they form more stable oxidative addition products, but the Cativa system for acetic acid synthesis developed by BP employs Ir(I) and Ir(III) carbonyl iodides.
pubs.acs.org /cen/80th/iridium.html   (864 words)

  
 Chemistry : Periodic Table : gadolinium : compound data [gadolinium (III) iodide]
Chemistry : Periodic Table : gadolinium : compound data [gadolinium (III) iodide]
Chemistry: WebElements Periodic Table: Professional Edition: Gadolinium: compound data [gadolinium (III) iodide]
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular.
www.webelements.com /webelements/compounds/text/Gd/Gd1I3-13572980.html   (310 words)

  
 Chest Radiography: Optimization of X-ray Spectrum for Cesium Iodide-Amorphous Silicon Flat-Panel Detector -- Dobbins et ...   (Site not responding. Last check: 2007-10-30)
are 36, 33, and 50 keV for cesium, iodine, and gadolinium, respectively.
The thickness of cesium iodide was equal to that in the detector
Dobbins JT, III, Ergun DL, Rutz LJ, Hinshaw DA, Blume H, Clark DC.
intl-radiology.rsnajnls.org /cgi/content/full/226/1/221   (5575 words)

  
 Patent 6,891,024
In the case of paramagnetic ions, one might mention by way of example ions such as chromium (III), manganese (II), iron (III), iron (II), cobalt (II), nickel (II), copper (II), neodymium (III), samarium (III), ytterbium (III), gadolinium (III), vanadium (II), terbium (III), dysprosium (III), holmium (III) and/or erbium (III), with gadolinium being particularly preferred.
Radioactively labeled monoclonal antibodies of the present invention may be produced according to well-known methods in the art.
For instance, monoclonal antibodies can be iodinated by contact with sodium and/or potassium iodide and a chemical oxidizing agent such as sodium hypochlorite, or an enzymatic oxidizing agent, such as lactoperoxidase.
www.pharmcast.com /Patents100/Yr2005/May2005/051005/6891024_Sarcocysis051005.htm   (6373 words)

  
 List of preliminary abstracts
The analysis is based on measurements of the chemical shifts of the drug protons as a function of concentration and temperature, enabling determination of both thermodynamics and structures of hetero-associates in solution.
The proposed NMR analysis has been applied to the hetero-association of phenanthridinium drug molecules, ethidium bromide (EB) and propidium iodide (PI), in aqueous salt solution and has been confirmed by the same results being given for two independent sets of experiments having either PI or EB constant and the other varied.
The NMR analysis has been applied to the hetero-association of phenanthridinium drug molecules, ethidium bromide (EB) and propidium iodide (PI), in aqueous salt solution and has been confirmed by the same results being given for two independent sets of experiments having either PI or EB constant and the other varied.
www.fiz.uni-lj.si /~eenc98/eenc98list.html   (16973 words)

  
 High Temperature Aqueous Chemistry
Adsorption of Iodide on AgCl-Filled Carbon" P. Ho and K. Kraus J.
ORNL-NSF-EATC-3 Part III, January 1975 1975 (Continued) "The Hydrolysis of Cations.
30, 61 (1969) "Electrical Conductances of Aqueous Sodium Iodide and the Comparative Thermodynamic Behavior of Aqueous Sodium Halide Solutions to 800%C and 4000 Bars" L. Dunn and W. Marshall J. Phys.
www.ornl.gov /sci/casd/htac/pubs.html   (9908 words)

  
 Motexafin gadolinium generates reactive oxygen species and induces apoptosis in sensitive and highly resistant multiple ...
Motexafin gadolinium generates reactive oxygen species and induces apoptosis in sensitive and highly resistant multiple myeloma cells -- Evens et al.
In vivo animal studies with gadolinium (III) texaphyrin as a radiation enhancer.
Motexafin gadolinium: a redox active drug that enhances the efficacy of bleomycin and doxorubicin.
www.bloodjournal.org /cgi/content/full/105/3/1265   (5461 words)

  
 Safety & Health Services - Chemical Compatibilty
Hydrogen iodide, Hydrogen peroxide, Hydrogen selenide, Hydrogen sulfide, Hydrogen telluride,
Phenylacetylene + 1,1-dimethylhydrazine, Phosphine, Phosphine derivatives, Phosphonium iodide, Phosphorus, Phosphorus halides, Phosphorus trichloride,
Hydrogen halides, Hypophosphites, Iodides, Iron sulfate, Iron(II) sulfate, Ketones, Methanol, 2-Methylcyclohexanone,
www.bnl.gov /esh/shsd/Programs/Program_Area_Chemicals_Compatibility.asp   (4487 words)

  
 Send Inquiry or RFQ to Gadolinium (III) Iodide CAS 13572-98-0 Suppliers & Manufacturers
Send Inquiry or RFQ to Gadolinium (III) Iodide CAS 13572-98-0 Suppliers and Manufacturers
Gadolinium (III) Iodide CAS 13572-98-0 Suppliers > Send Inquiry/RFQ
Only buyer inquiries with legitimate requests for products/services will be forwarded.
www.chemicalregister.com /Gadolinium_III_Iodide/rfq/pid32090.htm   (191 words)

  
 The Periodic Table of the Elements - Formation Inc. - The Information Corporation
It has recently been deduced, that self doped, Octahedrally coordinated, Bismuth (I) Iodide complexes would be metallic, and thus possibly superconducting, demonstrating the Electronic Bose-Einstein Condensation of Bipolarons, i.e.
The calculated low lying Electronic states of the Bismuth (I) Iodide molecule, compared with the Optical and Near Ultraviolet Spectroscopy of the Bismuth (I) Iodide molecule, reveals that there are indeed two bound singlet excited states, at 2.9 eV and 3.1 eV, the 0
Theoretical relationships have been found between metal Ammonia solutions and Bismuth (I) Iodide solutions, and a Boson - Fermion Model of the Metal - Insulator Transition has since been developed.
webpages.charter.net /tsiolkovsky/elements.htm   (1729 words)

  
 Treponema denticola Outer Membrane Inhibits Calcium Flux in Gingival Fibroblasts -- Ko et al. 66 (2): 703 -- Infection ...
compared with cells that were treated with either gadolinium chloride
Filamentous actin disruption and diminished inositol phosphate response in gingival fibroblasts caused by Treponema denticola.
Block of stretch-activated ion channels in Xenopus oocytes by gadolinium and calcium ions.
iai.asm.org /cgi/content/full/66/2/703   (5208 words)

  
 Illinois Department of Nuclear Safety
a therapeutic radiopharmaceutical dosage, other than iodine-125 or iodine-131 as sodium iodide, when the administered dosage differs from the prescribed dosage by more than ten percent of the prescribed dosage;
a) A written directive must be dated and signed by an authorized user before the administration of sodium iodide I-131 greater than 1.11 MBq (30 mCi), any therapeutic dosage of unsealed radioactive material or any therapeutic dose of radiation from radioactive material.
If, because of the emergent nature of the patient's condition, a delay in order to provide a written directive would jeopardize the patient's health, an oral directive is acceptable.
www.state.il.us /idns/html/legal/codeslaws/335.asp   (13940 words)

  
 X-Ray Imaging Physics for Nuclear Medicine Technologists. Part 2: X-Ray Interactions and Image Formation -- Seibert and ...
(iii) acquisition/creation of the CT image, and (iv) operational
are based on gadolinium, a rare earth element (Z = 64) with
iodide crystals used in an energy integration mode (12) but
tech.snmjournals.org /cgi/content/full/33/1/3   (8369 words)

  
 Inorganic chemistry on Medscape - 43 15   (Site not responding. Last check: 2007-10-30)
Layered organic-based metal iodide-polyiodide with unique mixed-valent gold(I/III) iodide chains.
Binuclear copper(I) macrocycles synthesized via the weak-link approach.
Masar III MS; Mirkin CA; Stern CL, et al.
www.medscape.com /medline/publicationbrowser/11439/43_15/dt_07262004/limit_-1   (774 words)

  
 Orlando - Apr 07-11 2002
Design and fabrication of the Savannah River Technology Center's new glovebox contained scanning electron microscope.
Evaluation of iodide sequestration using silver-impregnated activated carbons.
Evolution of extraction chromatography as a meaningful tool in radiochemical analysis.
www.cofc.edu /~nuclear/2002Orlando223.htm   (1972 words)

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