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Gadolinium Gallium Oxide
Product
Product Code
Order or Specifications
99% Gd3Ga5O12
GD-GAO-02-C
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99.9% Gd3Ga5O12
GD-GAO-03-C
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99.99% Gd3Ga5O12
GD-GAO-04-C
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99.999% Gd3Ga5O12
GD-GAO-05-C
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Gd3Ga5O12
is a crystalline solid used as a semiconductor and in photo optic applications. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Gadolinium is a Block F, Group 3, Period 6 element. The electronic configuration is [Xe]4f75d16s2. In its elemental form gadolinium's CAS number is 7440-54-2. The gadolinium atom has a radius of 178.7.pm and it's Van der Waals radius is unknown. Gadolinium is utilized for both its high magnetic moment (7.94µB) and in phosphors and scintillator material. When complexed with EDTA ligands, it is used as an injectable contrast agent for patients undergoing magnetic resonance imaging. Gadolinium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. With its high magnetic moment, gadolinium can reduce relaxation times and thereby enhance signal intensity. The extra stable half-full 4f electron shell with no low lying energy levels creates applications as an inert phosphor host. Gadolinium can therefore act as hosts for x-ray cassettes and in scintillator materials for computer tomography.

Gallium is a Block P, Group 13, Period 4 element. The electronic configuration is [Ar] 3d10 4s2 4p1. In its elemental form gallium's CAS number is 7440-55-3. The gallium atom has a radius of 122.1.pm and it's Van der Waals radius is 187.pm. Gallium is one of three elements that naturally occur as a liquid at room temperature. The other two are mercury and cesium. The application of gallium that has received the most attention is the production of semiconducting compounds. Of these, the most important are the compounds of gallium with antimony, arsenic or phosphor. Nowadays gallium arsenide (Ga-As) is undoubtedly the most used. This compound is used in the production of several electronic parts such as diodes and transistors, made for voltage rectification, signal amplification, etc. Other gallium arsenide applications are the semiconductor "lasing" and microwave generation and also in sensors to measure temperature, light or magnetic field.

American Elements semi conducting materials are crystal structures produced from ultra high purity starting materials synthesized by our high purity production facility which includes several large electric muffle furnaces, a tube furnace for hydrogen reduction, 50 gallon glass-lined Pfaudler reactors supported by our analytical laboratory containing X-ray diffraction, SEM, AA, BET surface area, and ICP Spectrometry for trace metals analysis. See a discussion of American Elements Ultra High Purity and Analytical capabilities. See Crystal Growth for processes used to fabricate semiconductor materials, which include:

  • Crystal "pulling" by the Czochaiski method for production of semiconductor materials
  • Flux growth and gradient freeze
  • Directional solidification of fluorites using both the Bridgman-Stockbarger and float zoning techniques
PRODUCT CATALOG Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc.
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Recent Research & Development for Gadolinium

  • Volumetry of [(11)C]-methionine PET uptake and MRI contrast enhancement in patients with recurrent glioblastoma multiforme. Galldiks N, Ullrich R, Schroeter M, Fink GR, Kracht LW. Eur J Nucl Med Mol Imaging. 2009 Aug 7. [Epub ahead of print] PMID: 19662410 [PubMed - as supplied by publisher]

  • [MRI exploration for the evaluation of orbital implant biocolonization in children enucleated for retinoblastoma.] Douira-Khomsi W, Korchane N, Louati H, Bhouri L, Kchaou I, Ben Hassine L, Bouguila H, Ayed S, Bellagha I. J Fr Ophtalmol. 2009 Aug 4. [Epub ahead of print] French. PMID: 19660832 [PubMed - as supplied by publisher]

  • Magnetic resonance imaging of mesenchymal stem cells labeled with dual (MR and fluorescence) agents in rat spinal cord injury. Shen J, Zhong XM, Duan XH, Cheng LN, Hong GB, Bi XB, Liu Y. Acad Radiol. 2009 Sep;16(9):1142-54. PMID: 19660710 [PubMed - in process]

  • Cerebral ischemia-reperfusion injury in rats-A 3 T MRI study on biphasic blood-brain barrier opening and the dynamics of edema formation. Pillai DR, Dittmar MS, Baldaranov D, Heidemann RM, Henning EC, Schuierer G, Bogdahn U, Schlachetzki F. J Cereb Blood Flow Metab. 2009 Aug 5. [Epub ahead of print] PMID: 19654585 [PubMed - as supplied by publisher]

  • Dynamic Contrast-Enhanced Perfusion MR Imaging With SPIO: A Pilot Study. Amemiya S, Akahane M, Aoki S, Abe O, Kamada K, Saito N, Ohtomo K. Invest Radiol. 2009 Jul 31. [Epub ahead of print] PMID: 19652616 [PubMed - as supplied by publisher]

  • [Spectroscopic analysis of Nd:GGG laser crystal] Zeng FM, Zhang Y, Sun J, Liu JH. Guang Pu Xue Yu Guang Pu Fen Xi. 2009 May;29(5):1323-6. Chinese. PMID: 19650481 [PubMed - in process]

  • A patient with acute myeloblastic leukemia who presented with conus medullaris syndrome and review of the literature. Olcay L, Arbas BK, Gökçe M. J Pediatr Hematol Oncol. 2009 Jun;31(6):440-7. PMID: 19648794 [PubMed - in process]

  • Inhibitory role of toll-like receptors agonists in Plasmodium yoelii liver stage development. Chen J, Xu W, Zhou T, Ding Y, Duan J, Huang F. Parasite Immunol. 2009 Aug;31(8):466-73. PMID: 19646211 [PubMed - in process]

  • Feasibility of T(2) (*) mapping for the evaluation of hip joint cartilage at 1.5T using a three-dimensional (3D), gradient-echo (GRE) sequence: A prospective study. Bittersohl B, Hosalkar HS, Hughes T, Kim YJ, Werlen S, Siebenrock KA, Mamisch TC. Magn Reson Med. 2009 Jul 30. [Epub ahead of print] PMID: 19645008 [PubMed - as supplied by publisher]

  • Detection of coronary artery lesions and myocardial necrosis by magnetic resonance in systemic necrotizing vasculitides. Mavrogeni S, Manoussakis MN, Karagiorga TC, Douskou M, Panagiotakos D, Bournia V, Cokkinos DV, Moutsopoulos HM. Arthritis Rheum. 2009 Jul 30;61(8):1121-1129. [Epub ahead of print] PMID: 19644909 [PubMed - as supplied by publisher]

  • Potential side effects of gadolinium-enhanced MRI . Smith SM, Hoag SD. Am Fam Physician. 2009 Aug 1;80(3):214. No abstract available. PMID: 19642251 [PubMed - in process]

  • Crystal structure of the ATP-gated P2X(4) ion channel in the closed state. Kawate T, Michel JC, Birdsong WT, Gouaux E. Nature. 2009 Jul 30;460(7255):592-8. PMID: 19641588 [PubMed - indexed for MEDLINE]

  • Clinical evaluation of magnetic resonance imaging in coronary heart disease: The CE-MARC study. Greenwood JP, Maredia N, Radjenovic A, Brown JM, Nixon J, Farrin AJ, Dickinson C, Younger JF, Ridgway JP, Sculpher M, Ball SG, Plein S. Trials. 2009 Jul 29;10(1):62. [Epub ahead of print] PMID: 19640271 [PubMed - as supplied by publisher]

  • Motexafin gadolinium: a novel radiosensitizer for brain tumors. Francis D, Richards GM, Forouzannia A, Mehta MP, Khuntia D. Expert Opin Pharmacother. 2009 Jul 29. [Epub ahead of print] PMID: 19640206 [PubMed - as supplied by publisher]

  • Effect of intravenous gadolinium-DTPA on diffusion tensor MR imaging for the evaluation of brain tumors. Bae MS, Jahng GH, Ryu CW, Kim EJ, Choi WS, Yang DM. Neuroradiology. 2009 Jul 28. [Epub ahead of print] PMID: 19636547 [PubMed - as supplied by publisher]

  • Mural Inflammation in Crohn Disease: Location-Matched Histologic Validation of MR Imaging Features. Punwani S, Rodriguez-Justo M, Bainbridge A, Greenhalgh R, De Vita E, Bloom S, Cohen R, Windsor A, Obichere A, Hansmann A, Novelli M, Halligan S, Taylor SA. Radiology. 2009 Jul 27. [Epub ahead of print] PMID: 19635832 [PubMed - as supplied by publisher]

  • Juxta-articular myxoma within the suprapatellar pouch masquerading as a ganglion cyst. Kosty JW, Moore JG. Orthopedics. 2009 Jul;32(7):527. doi: 10.3928/01477447-20090527-27. PMID: 19634839 [PubMed - in process]

  • The Evolution of Osseous Metaplasia in Localized Cutaneous Nephrogenic Systemic Fibrosis: A Case Report. Wiedemeyer K, Kutzner H, Abraham JL, Thakral C, Carlson JA, Tran TA, Hausser I, Hartschuh W. Am J Dermatopathol. 2009 Jul 23. [Epub ahead of print] PMID: 19633532 [PubMed - as supplied by publisher]

  • Lumbar congestive myelopathy mimicking neoplasia without concurrent vascular malformation. Tsutsumi S, Abe Y, Yasumoto Y, Ito M. Neurol Med Chir (Tokyo). 2009 Jul;49(7):316-9. PMID: 19633406 [PubMed - in process]

  • Electrocardiographic and cardiac magnetic resonance imaging parameters as predictors of a worse outcome in patients with idiopathic dilated cardiomyopathy. Hombach V, Merkle N, Torzewski J, Kraus JM, Kunze M, Zimmermann O, Kestler HA, Wöhrle J. Eur Heart J. 2009 Jul 24. [Epub ahead of print] PMID: 19633015 [PubMed - as supplied by publisher]

 

 

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