tellurium

Summary

Summary: Tellurium. An element that is a member of the chalcogen family. It has the atomic symbol Te, atomic number 52, and atomic weight 127.60. It has been used as a coloring agent and in the manufacture of electrical equipment. Exposure may cause nausea, vomiting, and CNS depression.

Top Publications

  1. ncbi Bacterial tellurite resistance
    D E Taylor
    Dept of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
    Trends Microbiol 7:111-5. 1999
  2. ncbi Differences in subcellular distribution and toxicity of green and red emitting CdTe quantum dots
    Jasmina Lovric
    Department of Pharmacology and Therapeutics, McGill University, McIntyre Medical Sciences Building, 3655 Promenade Sir William Osler, Montreal, Quebec H3G 1Y6, Canada
    J Mol Med (Berl) 83:377-85. 2005
  3. doi Tellurite: history, oxidative stress, and molecular mechanisms of resistance
    Thomas Girard Chasteen
    Department of Chemistry, Sam Houston State University, Huntsville, TX, USA
    FEMS Microbiol Rev 33:820-32. 2009
  4. ncbi One-pot synthesis of CdTe nanocrystals and shape control of luminescent CdTe-cystine nanocomposites
    Haifeng Bao
    State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Changchun 130022, Jilin, PR China
    Small 2:476-80. 2006
  5. doi Expression of Aeromonas caviae ST pyruvate dehydrogenase complex components mediate tellurite resistance in Escherichia coli
    Miguel E Castro
    Laboratorio de Microbiologia Molecular, Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    Biochem Biophys Res Commun 380:148-52. 2009
  6. ncbi Quantum dot sensitized solar cells. A tale of two semiconductor nanocrystals: CdSe and CdTe
    Jin Ho Bang
    Radiation Laboratory and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
    ACS Nano 3:1467-76. 2009
  7. pmc Synthesis and bio-imaging application of highly luminescent mercaptosuccinic acid-coated CdTe nanocrystals
    Erbo Ying
    State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, China
    PLoS ONE 3:e2222. 2008
  8. ncbi Tellurite-mediated thiol oxidation in Escherichia coli
    R J Turner
    Department of Biological Sciences, University of Calgary, Alberta, Canada
    Microbiology 145:2549-57. 1999
  9. pmc Bacterial toxicity of potassium tellurite: unveiling an ancient enigma
    Jose M Perez
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    PLoS ONE 2:e211. 2007
  10. ncbi The cytotoxicity of cadmium based, aqueous phase - synthesized, quantum dots and its modulation by surface coating
    Yuanyuan Su
    Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai 201800, China
    Biomaterials 30:19-25. 2009

Detail Information

Publications249 found, 100 shown here

  1. ncbi Bacterial tellurite resistance
    D E Taylor
    Dept of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
    Trends Microbiol 7:111-5. 1999
    b>Tellurium compounds are used in several industrial processes, although they are relatively rare in the environment. Genes associated with tellurite resistance (TeR) are found in many pathogenic bacteria...
  2. ncbi Differences in subcellular distribution and toxicity of green and red emitting CdTe quantum dots
    Jasmina Lovric
    Department of Pharmacology and Therapeutics, McGill University, McIntyre Medical Sciences Building, 3655 Promenade Sir William Osler, Montreal, Quebec H3G 1Y6, Canada
    J Mol Med (Berl) 83:377-85. 2005
    ..These findings suggest that the size of QDs contributes to their subcellular distribution and that drugs can alter QD-induced cytotoxicity...
  3. doi Tellurite: history, oxidative stress, and molecular mechanisms of resistance
    Thomas Girard Chasteen
    Department of Chemistry, Sam Houston State University, Huntsville, TX, USA
    FEMS Microbiol Rev 33:820-32. 2009
    The perceived importance of tellurium (Te) in biological systems has lagged behind selenium (Se), its lighter sister in the Group 16 chalcogens, because of tellurium's lower crustal abundance, lower oxyanion solubility and biospheric ..
  4. ncbi One-pot synthesis of CdTe nanocrystals and shape control of luminescent CdTe-cystine nanocomposites
    Haifeng Bao
    State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate School of the Chinese Academy of Sciences, Changchun 130022, Jilin, PR China
    Small 2:476-80. 2006
  5. doi Expression of Aeromonas caviae ST pyruvate dehydrogenase complex components mediate tellurite resistance in Escherichia coli
    Miguel E Castro
    Laboratorio de Microbiologia Molecular, Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    Biochem Biophys Res Commun 380:148-52. 2009
    ..environmental isolate Aeromonas caviae ST is involved in the reduction of tellurite to elemental tellurium. In this work, we show that expression of A...
  6. ncbi Quantum dot sensitized solar cells. A tale of two semiconductor nanocrystals: CdSe and CdTe
    Jin Ho Bang
    Radiation Laboratory and Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
    ACS Nano 3:1467-76. 2009
    ..The anodic corrosion and exchange of Te with S dominate the charge transfer at the CdTe interface. Factors that dictate the efficiency and photostability of CdSe and CdTe quantum dots are discussed...
  7. pmc Synthesis and bio-imaging application of highly luminescent mercaptosuccinic acid-coated CdTe nanocrystals
    Erbo Ying
    State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, China
    PLoS ONE 3:e2222. 2008
    ..Under optimal conditions, the QY of CdTe nanocrystals is even high up to 83%. The biological application of luminescent MSA-CdTe to HEK 293 cell imaging was also illustrated...
  8. ncbi Tellurite-mediated thiol oxidation in Escherichia coli
    R J Turner
    Department of Biological Sciences, University of Calgary, Alberta, Canada
    Microbiology 145:2549-57. 1999
    The oxyanion of tellurium, tellurite (TeO3(2-)), is toxic to most micro-organisms, particularly gram-negative bacteria. The mechanism of tellurite toxicity is presently unknown...
  9. pmc Bacterial toxicity of potassium tellurite: unveiling an ancient enigma
    Jose M Perez
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    PLoS ONE 2:e211. 2007
    ....
  10. ncbi The cytotoxicity of cadmium based, aqueous phase - synthesized, quantum dots and its modulation by surface coating
    Yuanyuan Su
    Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jialuo Road 2019, Shanghai 201800, China
    Biomaterials 30:19-25. 2009
    ....
  11. doi The exposure of bacteria to CdTe-core quantum dots: the importance of surface chemistry on cytotoxicity
    Raphael Schneider
    DCPR, Département de Chimie Physique de Réactions, Nancy Universite, CNRS, 1 rue Grandville, BP 20451, F 54001 Nancy, France
    Nanotechnology 20:225101. 2009
    ..Our study suggests that QD cytotoxicity is rather due to the formation of TeO2 and probably the existence of CdO formed by surface oxidation. In this respect, QDs possessing a CdO shell appeared very toxic...
  12. pmc Catalases are NAD(P)H-dependent tellurite reductases
    Iván L Calderón
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    PLoS ONE 1:e70. 2006
    ..out the NAD(P)H-dependent reduction of soluble tellurite ion (TeO(3)(2-)) to the less toxic, insoluble metal, tellurium (Te(o)), in vitro...
  13. ncbi Synthesis of CdTe/CdS/ZnS quantum dots and their application in imaging of hepatocellular carcinoma cells and immunoassay for alpha fetoprotein
    Jianniao Tian
    Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources Ministry of Education of China, College of Chemistry and Chemical Engineering of Guangxi Normal University, Guilin, People s Republic of China
    Nanotechnology 21:305101. 2010
    ....
  14. doi Immunocompetence and alterations in hepatic gene expression in rainbow trout exposed to CdS/CdTe quantum dots
    F Gagne
    Fluvial Ecosystem Research, Aquatic Ecosystem Research Protection, Water Science and Technology, Environment Canada, Montreal, Quebec, Canada
    J Environ Monit 12:1556-65. 2010
    Cadmium (Cd) tellurium quantum dots (QDs) are long-lived fluorescent nanocrystals that have the ability to produce potentially toxic reactive oxygen species at the surface of the nanoparticle and release toxic cadmium ions...
  15. doi CdTe nanoparticles display tropism to core histones and histone-rich cell organelles
    Jennifer Conroy
    Department of Clinical Medicine, Trinity College Dublin, Dublin 2, Ireland
    Small 4:2006-15. 2008
    ..These findings strongly suggest that charge-mediated QD/histone interactions could provide the basis for QD nuclear localization downstream of intracellular transport mechanisms...
  16. ncbi Extracellular microbial synthesis of biocompatible CdTe quantum dots
    Haifeng Bao
    School of Chemical and Biomedical Engineering and Center for Advanced Bionanosystems, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
    Acta Biomater 6:3534-41. 2010
    ..The biosynthesized QDs may have great potential in broad bio-imaging and bio-labeling applications...
  17. ncbi Evidence for a tellurite-dependent generation of reactive oxygen species and absence of a tellurite-mediated adaptive response to oxidative stress in cells of Pseudomonas pseudoalcaligenes KF707
    Valentina Tremaroli
    Department of Biology, General Microbiology Unit, Faculty of Sciences, University of Bologna, Via Irnerio 42, 40126 Bologna, Italy
    Arch Microbiol 187:127-35. 2007
    Tellurite (TeO3(2-)) is the most toxic and soluble oxyanion among tellurium (Te) compounds. The effects of the metalloid anion on the oxidative stress response of the obligate aerobe Pseudomonas pseudoalcaligenes KF707 were investigated...
  18. doi Tellurite-induced oxidative stress leads to cell death of murine hepatocarcinoma cells
    Juan M Sandoval
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    Biometals 23:623-32. 2010
    Data regarding tellurium (Te) toxicity are scarce. Studies on its metabolism, performed mainly in bacteria, underline a major role of reactive oxygen species (ROS)...
  19. pmc Phage inhibition, colicin resistance, and tellurite resistance are encoded by a single cluster of genes on the IncHI2 plasmid R478
    K F Whelan
    Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
    J Bacteriol 177:5016-27. 1995
    ..Insertions in terA reduced phage inhibition levels only. The presence of the terZ and terF ORFs in pMER610 was confirmed, and derivatives of this plasmid mediated Phi, PacB, and Ter...
  20. ncbi Variability in tellurite resistance and the ter gene cluster among Shiga toxin-producing Escherichia coli isolated from humans, animals and food
    Dorothea Orth
    Department of Hygiene, Microbiology and Social Medicine, Innsbruck Medical University and Austrian Reference Laboratory for Enterohemorrhagic Escherichia coli, Schöpfstr 41, A 6020 Innsbruck, Austria
    Res Microbiol 158:105-11. 2007
    ..We conclude that the use of tellurite-containing media in screening for STEC will allow the detection of STEC O26, O111, O145 and non-sorbitol-fermenting O157, but most strains (in this study 74.3%) from other serotypes will be missed...
  21. ncbi Ecotoxicity of CdTe quantum dots to freshwater mussels: impacts on immune system, oxidative stress and genotoxicity
    F Gagne
    Fluvial Ecosystem Research, Environment Canada, 105 McGill Street, Montreal, Quebec, Canada H2Y 2E7
    Aquat Toxicol 86:333-40. 2008
    ..A multivariate analysis revealed that the various response patterns differed based on the concentration of CdTe, thus permitting the identification of biomarkers associated with the form (colloidal vs. molecular) of cadmium...
  22. ncbi Glutathione is a target in tellurite toxicity and is protected by tellurite resistance determinants in Escherichia coli
    R J Turner
    Structural Biology Research Group, Department Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
    Can J Microbiol 47:33-40. 2001
    ..Additionally, the thiol oxidation response curves were compared between selenite and tellurite. The loss of thiol compounds within the cell recovered from selenite but not to tellurite...
  23. doi An in vitro study of vascular endothelial toxicity of CdTe quantum dots
    Ming Yan
    Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang University, Zheda Road 38, Hangzhou 310027, China
    Toxicology 282:94-103. 2011
    ..These results also provide helpful guidance on the future safe use and manipulation of QDs to make them more suitable tools in nanomedicine...
  24. doi Nuclear myocardial perfusion imaging with a cadmium-zinc-telluride detector technique: optimized protocol for scan time reduction
    Bernhard A Herzog
    Cardiac Imaging, University Hospital Zurich, CH 8091 Zurich, Switzerland
    J Nucl Med 51:46-51. 2010
    ..We aimed at establishing the optimal scan time for nuclear myocardial perfusion imaging (MPI) on an ultrafast cardiac gamma-camera using a novel cadmium-zinc-telluride (CZT) solid-state detector technology...
  25. doi Irreversible inhibition of human cathepsins B, L, S and K by hypervalent tellurium compounds
    Rodrigo L O R Cunha
    Department of Biophysics, Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Rua Tres de Maio 100, 04044 20 Sao Paulo, Brazil
    Biol Chem 390:1205-12. 2009
    The inhibition of human cysteine cathepsins B, L, S and K was evaluated by a set of hypervalent tellurium compounds (telluranes) comprising both organic and inorganic derivatives...
  26. ncbi Some aspects involving the use of CdTe for finding end-point energies in diagnostic radiology
    M Krmar
    Department of Physics, California State University Dominguez Hills, Carson, CA 90747, USA
    Appl Radiat Isot 64:584-7. 2006
    ..High rates also decrease energy resolution and lower the accuracy of recalibrations using characteristic X-rays from the target...
  27. ncbi Reduced isotope dose with rapid SPECT MPI imaging: initial experience with a CZT SPECT camera
    W Lane Duvall
    Mount Sinai Heart, Mount Sinai Medical Center, New York, NY 10029, USA
    J Nucl Cardiol 17:1009-14. 2010
    ..Recently introduced cadmium zinc telluride (CZT) SPECT cameras have the potential to achieve both goals, but clinical experience is so far limited...
  28. doi L-Cysteine capped CdTe-CdS core-shell quantum dots: preparation, characterization and immuno-labeling of HeLa cells
    Hongyan Zhang
    Department of Chemistry, Northeastern University, Shenyang 110004, China
    Luminescence 26:86-92. 2011
    ..It was indicated that this kind of QD would have application potential in bio-labeling and cell imaging...
  29. ncbi Geobacillus stearothermophilus V ubiE gene product is involved in the evolution of dimethyl telluride in Escherichia coli K-12 cultures amended with potassium tellurate but not with potassium tellurite
    Manuel A Araya
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    J Biol Inorg Chem 9:609-15. 2004
    ..These results may be indicative that the two Te oxyanions could be detoxified in the cell by different metabolic pathways...
  30. ncbi Comparison of water-soluble CdTe nanoparticles synthesized in air and in nitrogen
    Yuanfang Liu
    Nomadics, Inc, 1024 South Innovation Way, Stillwater, Oklahoma 74074, USA
    J Phys Chem B 110:16992-7000. 2006
    ..Cytotoxicity measurements reveal that the particles made in air appear slightly more toxic, possibly due to the excess of free cadmium...
  31. ncbi Photochemical instability of thiol-capped CdTe quantum dots in aqueous solution and living cells: process and mechanism
    Jiong Ma
    Surface Physics Laboratory National Key Laboratory, Physics Department, State Key Laboratory for Advanced Photonic Materials and Devices, Fudan University, Shanghai, PR China
    J Phys Chem B 111:12012-6. 2007
    ..By comparing the photostability of QDs in C2C12 cells with and without NaN3 treatment, the photooxidation effect of 1O2 on photobleaching of cellular QDs was confirmed...
  32. ncbi Tellurium: an element with great biological potency and potential
    Lalla Aicha Ba
    Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, PO Box 151150, D 66123, Saarbruecken, Germany
    Org Biomol Chem 8:4203-16. 2010
    b>Tellurium has long appeared as a nearly 'forgotten' element in Biology, with most studies focusing on tellurite, tellurate and a handful of organic tellurides...
  33. ncbi High-rate x-ray spectroscopy in mammography with a CdTe detector: a digital pulse processing approach
    L Abbene
    Dipartimento di Fisica e Tecnologie Relative, Universita di Palermo, Viale delle Scienze, Edificio 18, Palermo 90128, Italy
    Med Phys 37:6147-56. 2010
    ..In this work we present a detection system, based on a CdTe detector and an innovative digital pulse processing (DPP) system, for high-rate x-ray spectroscopy in mammography...
  34. doi Selenium- and tellurium-containing multifunctional redox agents as biochemical redox modulators with selective cytotoxicity
    Vincent Jamier
    Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus, 66123 Saarbruecken, Germany
    Chemistry 16:10920-8. 2010
    ..Selenium- and tellurium-based agents turn the oxidizing redox environment present in certain cancer cells into a lethal cocktail of ..
  35. doi Aqueous synthesis of zinc blende CdTe/CdS magic-core/thick-shell tetrahedral-shaped nanocrystals with emission tunable to near-infrared
    Zhengtao Deng
    The Biodesign Institute, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
    J Am Chem Soc 132:5592-3. 2010
    ..The magic-core/thick-shell nanocrystals may represent an important step toward the synthesis and application of next-generation colloidal nanocrystals from solar cell conversion to intracellular imaging...
  36. doi Validation of CT attenuation correction for high-speed myocardial perfusion imaging using a novel cadmium-zinc-telluride detector technique
    Bernhard A Herzog
    Cardiac Imaging, University Hospital Zurich, Zurich, Switzerland
    J Nucl Med 51:1539-44. 2010
    ..The aim of this study was to validate attenuation correction (AC) using low-dose standard CT for myocardial perfusion imaging (MPI) on a novel ultra fast γ-camera with cadmium-zinc-telluride (CZT) detector technology...
  37. doi Ultrafast nuclear myocardial perfusion imaging on a new gamma camera with semiconductor detector technique: first clinical validation
    Ronny R Buechel
    Cardiac Imaging, University Hospital Zurich, Ramistrasse 100, CH 8091 Zurich, Switzerland
    Eur J Nucl Med Mol Imaging 37:773-8. 2010
    ..To assess the diagnostic performance of a novel ultrafast cardiac gamma camera with cadmium-zinc-telluride (CZT) solid-state semiconductor detectors for nuclear myocardial perfusion imaging (MPI)...
  38. doi Reduced isotope dose and imaging time with a high-efficiency CZT SPECT camera
    W Lane Duvall
    Mount Sinai Division of Cardiology Mount Sinai Heart, Mount Sinai Medical Center, New York, NY 10029, USA
    J Nucl Cardiol 18:847-57. 2011
    ..Recently introduced Cadmium Zinc Telluride (CZT) cameras have the potential to achieve both goals...
  39. ncbi The product of the cysK gene of Bacillus stearothermophilus V mediates potassium tellurite resistance in Escherichia coli
    C C Vasquez
    Laboratorio de Microbiologia Molecular, Departamento de Ciencias Biologicas, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    Curr Microbiol 43:418-23. 2001
    ..Introduction of the B. stearothermophilus V cysK gene into a cysK strain of Salmonella typhimurium LT2 resulted in complementation of the mutation as well as transfer of tellurite resistance...
  40. doi Antibacterial activities of tellurium nanomaterials
    Zong Hong Lin
    Department of Chemistry, National Taiwan University, 1 Roosevelt Road, Section 4, Taipei 10617, Taiwan
    Chem Asian J 7:930-4. 2012
    ..Compared to Ag nanoparticles that are commonly used as antibacterial reagents, Te NMs have higher antibacterial activity and lower toxicity. Thus, Te NMs hold great practical potential as a new and efficient antibacterial agent...
  41. doi The cytotoxicity of CdTe quantum dots and the relative contributions from released cadmium ions and nanoparticle properties
    Yuanyuan Su
    State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing 210093, PR China
    Biomaterials 31:4829-34. 2010
    ..Moreover, we discovered that the cytotoxicity of QDs was based on the concentration of total QDs ingested by cells. Our data clearly showed that specific properties of nanoparticles have an obvious influence on their cytotoxicity...
  42. doi Turn-on and near-infrared fluorescent sensing for 2,4,6-trinitrotoluene based on hybrid (gold nanorod)-(quantum dots) assembly
    Yunsheng Xia
    Anhui Key Laboratory of Chemo Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, China
    Anal Chem 83:1401-7. 2011
    ..1 nM. Importantly, TNT can be well distinguished from its analogues due to their electron deficiency difference. The developed method is successfully applied to TNT sensing in real environmental samples...
  43. ncbi A glimpse on biological activities of tellurium compounds
    Rodrigo L O R Cunha
    Departamento de Ciências Exatas e da Terra, UNIFESP, Diadema, SP, Brasil
    An Acad Bras Cienc 81:393-407. 2009
    b>Tellurium is a rare element which has been regarded as a toxic, non-essential trace element and its biological role is not clearly established to date...
  44. doi Conjugating luminescent CdTe quantum dots with biomolecules
    Christina Gerhards
    Department of Chemistry, Friedrich Alexander University Erlangen Nuernberg, Erlangen, Germany
    J Phys Chem B 112:14482-91. 2008
    ..Notably, these interactions depend on the size of the QDs. Repulsive forces, on the other hand, are operative between the positively capped QDs and cyt c, hampering any bioconjugation...
  45. doi Antimicrobial activity and cellular toxicity of nanoparticle-polymyxin B conjugates
    Soonhyang Park
    Department of Biomedical Engineering, McGill University, 3775 University Street, Montreal QC, H3A 2B4, Canada
    Nanotechnology 22:185101. 2011
    ..These results show that it is possible to create antimicrobial agents using concentrations of CdTe quantum dots that do not harm mammalian cells...
  46. doi Preparation of highly luminescent CdTe/CdS core/shell quantum dots
    Jian Wang
    Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China
    Chemphyschem 10:680-5. 2009
    ....
  47. ncbi Electrogenerated chemiluminescence from thiol-capped CdTe quantum dots and its sensing application in aqueous solution
    Heyou Han
    College of Science, State Key Laboratory of Agricultural Microbiology, MOA Key Laboratory of Food Safety Evaluation, Huazhong Agricultural University, Wuhan 430070, PR China
    Anal Chim Acta 596:73-8. 2007
    ....
  48. ncbi Tellurite specifically affects squalene epoxidase: investigations examining the mechanism of tellurium-induced neuropathy
    M Wagner
    Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill 27599 7250, USA
    J Neurochem 64:2169-76. 1995
    ..neuropathy characterized by a transient demyelinating/remyelinating sequence results when young rats are fed a tellurium-containing diet. The neuropathy occurs secondary to a systemic block in cholesterol synthesis...
  49. ncbi Controllable synthesis and cell-imaging studies on CdTe quantum dots together capped by glutathione and thioglycolic acid
    Jianniao Tian
    College of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, China
    J Colloid Interface Sci 336:504-9. 2009
    ....
  50. ncbi The dihydrolipoamide dehydrogenase of Aeromonas caviae ST exhibits NADH-dependent tellurite reductase activity
    Miguel E Castro
    Laboratorio de Microbiologia Molecular, Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    Biochem Biophys Res Commun 375:91-4. 2008
    ..coli, Zymomonas mobilis, Streptococcus pneumoniae, and Geobacillus stearothermophilus also showed NADH-dependent tellurite reductase in vitro suggesting that this enzymatic activity is widely distributed among microorganisms...
  51. doi Tellurite-induced carbonylation of the Escherichia coli pyruvate dehydrogenase multienzyme complex
    Nataly del P Contreras
    Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    Arch Microbiol 192:969-73. 2010
    The soluble tellurium oxyanion, tellurite, is toxic for most organisms...
  52. doi Interfacial charge transfer between CdTe quantum dots and gram negative vs gram positive bacteria
    Eve Dumas
    Department of Biomedical Engineering, McGill University, Montreal, QC, Canada H3A 2B4
    Environ Sci Technol 44:1464-70. 2010
    ..The findings also suggest future avenues of inquiry into electron transfer processes between nanomaterials and bacteria...
  53. ncbi Design and synthesis of highly luminescent near-infrared-emitting water-soluble CdTe/CdSe/ZnS core/shell/shell quantum dots
    Wenjin Zhang
    State Key Laboratory of Bioreactor Engineering, Department of Chemistry, and School of Bioengineering, East China University of Science and Technology, Shanghai 200237, China
    Inorg Chem 48:9723-31. 2009
    ..The as-prepared water-soluble CdTe/CdSe/ZnS QDs possess PL quantum yields as high as 84% in aqueous media, which is one of the best results for the luminescent semiconductor nanocrystals...
  54. ncbi Synthesis of coumarins, 4-hydroxycoumarins, and 4-hydroxyquinolinones by tellurium-triggered cyclizations
    Donald C Dittmer
    Department of Chemistry, Syracuse University, Room 1 014 CST, Syracuse, New York 13244, USA
    J Org Chem 70:4682-6. 2005
    ..Phenylketene formation competes with cyclization of the alpha-chlorophenylacetate ester of methyl salicylate as demonstrated by a trapping experiment with benzylamine. Elemental tellurium may be recovered and reused.
  55. ncbi Exploring synthetic avenues for the effective synthesis of selenium- and tellurium-containing multifunctional redox agents
    Susanne Mecklenburg
    Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, PO Box 151150, D 66123, Saarbruecken, Germany
    Org Biomol Chem 7:4753-62. 2009
    ....
  56. doi New telluride-mediated elimination for novel synthesis of 2',3'-didehydro-2',3'-dideoxynucleosides
    Jia Sheng
    Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
    J Org Chem 73:3725-9. 2008
    ..Our novel strategy has great potential to simplify synthesis of these drugs and to further reduce cost of AIDS treatment and will also facilitate development of novel d4N and ddN analogues...
  57. ncbi Facile one-pot synthesis of luminescent, water-soluble, and biocompatible glutathione-coated CdTe nanocrystals
    Huifeng Qian
    College of Chemistry and Chemical Engineering, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
    Small 2:747-51. 2006
  58. ncbi Hybrid approach to the synthesis of highly luminescent CdTe/ZnS and CdHgTe/ZnS nanocrystals
    James M Tsay
    Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, California 90095, USA
    J Am Chem Soc 126:1926-7. 2004
    ..These particles exhibit higher resistance to oxidation and photobleaching, have high quantum yields, and could be used for biological labeling and imaging...
  59. pmc Genomic variability of O islands encoding tellurite resistance in enterohemorrhagic Escherichia coli O157:H7 isolates
    Diane E Taylor
    Department of Medical Microbiology and Immunology, 1 28 Medical Sciences Building, University of Alberta, Edmonton, Alberta T6G 2H7, Canada
    J Bacteriol 184:4690-8. 2002
    ..coli clinical isolate, suggests that the pathogenicity island was acquired from a plasmid. This work demonstrates diversity among E. coli O157:H7 isolates, at least as far as the presence of Te(r) genes is concerned...
  60. ncbi Isosteric replacement of sulfur with other chalcogens in peptides and proteins
    Luis Moroder
    Max Planck Institut fur Biochemie, D 82152 Martinsried, Germany
    J Pept Sci 11:187-214. 2005
    ..and proteins, the methionine and the serine/cysteine series, and discusses the synthesis of the related selenium/tellurium analogues as well as their use in peptide synthesis and protein expression...
  61. ncbi Studying nanotoxic effects of CdTe quantum dots in Trypanosoma cruzi
    Cecilia Stahl Vieira
    Setor de Entomologia Médica e Forense, Laboratório de Transmissores de Leishmanioses
    Mem Inst Oswaldo Cruz 106:158-65. 2011
    ..Taken together, our data indicate that 2 μM QD can be used for the successful long-term study of the parasite-vector interaction in real time...
  62. ncbi Alloyed semiconductor quantum dots: tuning the optical properties without changing the particle size
    Robert E Bailey
    Department of Biomedical Engineering and Chemistry, Emory University and Georgia Institute of Technology, 1639 Pierce Drive, Suite 2001, Atlanta, Georgia 30322, USA
    J Am Chem Soc 125:7100-6. 2003
    ....
  63. doi UV-enhanced cytotoxicity of thiol-capped CdTe quantum dots in human pancreatic carcinoma cells
    Shu quan Chang
    College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
    Toxicol Lett 188:104-11. 2009
    ..Moreover, the influences of different UV illumination conditions on the viability of cells containing QDs were examined and discussed in detail...
  64. ncbi Synthesis, characterisation, and biological studies of CdTe quantum dot-naproxen conjugates
    Stephen J Byrne
    The School of Chemistry, University of Dublin, Ireland
    ChemMedChem 2:183-6. 2007
  65. doi Tellurite-mediated disabling of [4Fe-4S] clusters of Escherichia coli dehydratases
    Iván L Calderón
    Laboratorio de Microbiologia Molecular, Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    Microbiology 155:1840-6. 2009
    The tellurium oxyanion tellurite is toxic for most organisms and it seems to alter a number of intracellular targets. In this work the toxic effects of tellurite upon Escherichia coli [4Fe-4S] cluster-containing dehydratases was studied...
  66. doi DNA-damage induction by eight metal compounds in TK6 human lymphoblastoid cells: results obtained with the alkaline Comet assay
    Emma Guillamet
    Grup de Mutagenesi, Departament de Genetica i de Microbiologia, Facultat de Biociencies, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain CIBER Epidemiología y Salud Pública, ISCIII, Spain
    Mutat Res 654:22-8. 2008
    ..two palladium compounds (ammonium tetrachloropalladate and ammonium hexachloropalladate), and two tellurium compounds (sodium tellurite and sodium tellurate) was evaluated in human lymphoblastoid TK6 cells by use of the ..
  67. pmc Cysteine metabolism-related genes and bacterial resistance to potassium tellurite
    Derie E Fuentes
    Departamento de Biologia, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
    J Bacteriol 189:8953-60. 2007
    ..Results showed that cell tolerance to tellurite correlates with the expression level of the cysteine metabolic genes and that these genes are up-regulated when tellurite is present in the growth medium...
  68. ncbi Sensitivity to potassium tellurite of Escherichia coli cells deficient in CSD, CsdB and IscS cysteine desulfurases
    Diana M Rojas
    Instituto de Errores Innatos del Metabolismo, Pontificia Universidad Javeriana, Facultad de Ciencias Carrera 7 No 40 62, Bogota, Colombia
    Res Microbiol 156:465-71. 2005
    ..Complementation analysis could not be performed under anaerobic conditions because the three mutants did not show tellurite hypersensitivity. These results indicate that oxidative stress is involved in tellurite toxicity in E. coli...
  69. ncbi Long-term exposure to CdTe quantum dots causes functional impairments in live cells
    Sung Ju Cho
    Department of Pharmacology and Therapeutics, McGill University, Montreal, QC Canada
    Langmuir 23:1974-80. 2007
    ..In summary, CdTe QDs induce cell death via mechanisms involving both Cd2+ and ROS accompanied by lysosomal enlargement and intracellular redistribution...
  70. doi Determination of selenium and tellurium compounds in biological samples by ion chromatography dynamic reaction cell inductively coupled plasma mass spectrometry
    Chia Yi Kuo
    Department of Chemistry, National Sun Yat Sen University, Kaohsiung 80424, Taiwan
    J Chromatogr A 1181:60-6. 2008
    ..coupled plasma mass spectrometric (IC-ICP-MS) method for the speciation of selenium and tellurium compounds namely selenite [Se(IV)], selenate [Se(VI)], Se-methylselenocysteine (MeSeCys), selenomethione (SeMet),..
  71. ncbi Multifunctional tellurium molecule protects and restores dopaminergic neurons in Parkinson's disease models
    Benjamin Sredni
    CAIR Institute, The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Keren Hayessod St, Ramat Gan, Israel
    FASEB J 21:1870-83. 2007
    ..We report that the tellurium immunomodulating compound ammonium trichloro(dioxoethylene-O,O'-)tellurate (AS101) protects dopaminergic neurons ..
  72. ncbi Role of copper, zinc, selenium and tellurium in the cellular defense against oxidative and nitrosative stress
    Lars Oliver Klotz
    Institut für Biochemie and Molekularbiologie I, Dusseldorf, 40001 Dusseldorf, Germany
    J Nutr 133:1448S-51S. 2003
    ..Also, low-molecular-weight organoselenium and organotellurium compounds of pharmacologic interest catalyze the reduction of hydroperoxides or peroxynitrite with various cellular reducing equivalents...
  73. ncbi The synthetic tellurium compound, AS101, is a novel inhibitor of IL-1beta converting enzyme
    Miri Brodsky
    C A I R Institute, The Safdiè AIDS and Immunology Research Center, The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan 52900, Israel
    J Interferon Cytokine Res 27:453-62. 2007
    ..Thus, their blockage by the nontoxic compound, AS101, currently used in clinical studies, may provide clinical advantage in the treatment of these diseases...
  74. pmc Pyridine-2,6-bis(thiocarboxylic acid) produced by Pseudomonas stutzeri KC reduces and precipitates selenium and tellurium oxyanions
    Anna M Zawadzka
    Environmental Biotechnology Institute, University of Idaho, Food Research Center 103, P O Box 441052, Moscow, ID 83844 1052, USA
    Appl Environ Microbiol 72:3119-29. 2006
    ..of Pseudomonas stutzeri KC, pyridine-2,6-bis(thiocarboxylic acid) (pdtc), is shown to detoxify selenium and tellurium oxyanions in bacterial cultures. A mechanism for pdtc's detoxification of tellurite and selenite is proposed...
  75. ncbi Tellurite effects on Rhodobacter capsulatus cell viability and superoxide dismutase activity under oxidative stress conditions
    Francesca Borsetti
    Department of Biology, Microbiology Unit, University of Bologna, 40126 Bologna, Italy
    Res Microbiol 156:807-13. 2005
    ..capsulatus against periplasmic oxidative stress; and finally, (4) SenC protein is not involved in TeR, possibly because tellurite does not generate O-2 at the periplasmic space level...
  76. ncbi Hair growth induction by the Tellurium immunomodulator AS101: association with delayed terminal differentiation of follicular keratinocytes and ras-dependent up-regulation of KGF expression
    Benjamin Sredni
    C A I R Institute, Faculty of Life Sciences, Bar Ilan University, Ramat Gan, 52900 Israel
    FASEB J 18:400-2. 2004
    ..The results emphasize the unique mode of action of AS101 and highlight its potential clinical use for treating certain types of alopecia...
  77. pmc In vivo 31P nuclear magnetic resonance investigation of tellurite toxicity in Escherichia coli
    Elke M Lohmeier-Vogel
    Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
    Appl Environ Microbiol 70:7342-7. 2004
    ..The presence of the resistance determinant tehAB, by an as yet unidentified detoxification event, protects the cells from uncoupling by tellurite...
  78. pmc Phenotypic and molecular analysis of tellurite resistance among enterohemorrhagic Escherichia coli O157:H7 and sorbitol-fermenting O157:NM clinical isolates
    Martina Bielaszewska
    Institut fur Hygiene, Universitatsklinikum Munster, Robert Koch Str 41, 48149 Munster, Germany
    J Clin Microbiol 43:452-4. 2005
    ..5%) of 86 sorbitol-fermenting (SF) EHEC O157:NM strains had Te MICs of </=4 microg/ml, did not grow on Te-containing media, and lacked ter genes. Optimal detection of SF EHEC O157:NM strains requires Te-independent strategies...
  79. pmc Role of a cysteine synthase in Staphylococcus aureus
    James K Lithgow
    Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom
    J Bacteriol 186:1579-90. 2004
    ..aureus to recover from starvation in amino acid- or phosphate-limiting conditions, indicating a role for cysteine in the S. aureus stress response and survival mechanisms...
  80. ncbi Tellurium-induced cognitive deficits in rats are related to neuropathological changes in the central nervous system
    Ewa Widy-Tyszkiewicz
    Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Krakowskie Przedmiescie 26 28, Poland
    Toxicol Lett 131:203-14. 2002
    ..b>Tellurium treatment was found to cause significant impairment in retention of the spatial learning task...
  81. ncbi Inhibition of human squalene monooxygenase by tellurium compounds: evidence of interaction with vicinal sulfhydryls
    B P Laden
    Graduate Center for Toxicology, University of Kentucky, Lexington 40536, USA
    J Lipid Res 42:235-40. 2001
    ..Feeding weanling rats a diet containing 1% elemental tellurium causes a transient, peripheral demyelination due to the disruption of cholesterol synthesis in Schwann cells ..
  82. pmc Identification and molecular genetic analysis of multiple loci contributing to high-level tellurite resistance in Rhodobacter sphaeroides 2.4.1
    M Gomelsky
    Department of Microbiology and Molecular Genetics, University of Texas Medical School, Houston 77030, USA
    Appl Environ Microbiol 63:4713-20. 1997
    ..Both cysK and telA null mutations readily gave rise to suppressors, suggesting that the phenomenon of high-level tellurite resistance in R. sphaeroides is complex and other, as yet uncharacterized, loci may be involved...
  83. ncbi Formation of intranuclear crystalloids and proliferation of the smooth endoplasmic reticulum in schwann cells induced by tellurium treatment: association with overexpression of HMG CoA reductase and HMG CoA synthase mRNA
    M T Berciano
    Department of Anatomy and Cell Biology, University of Cantabria, Faculty of Medicine, Santander, Spain
    Glia 29:246-59. 2000
    Administration of tellurium (Te) in weaning rats causes a well-established demyelinating neuropathy induced by the inhibition in myelinating Schwann cells (SC) of the synthesis of cholesterol, a major component of the myelin sheath, at ..
  84. ncbi The tellurite-resistance determinants tehAtehB and klaAklaBtelB have different biochemical requirements
    R J Turner
    Dept of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
    Microbiology 141:3133-40. 1995
    ..Our data also suggest a mechanism for endogenous resistance to tellurite which involves nitrate reductase, superoxide dismutase, and thiol redox processes...
  85. ncbi Tellurium causes dose-dependent coordinate down-regulation of myelin gene expression
    A D Toews
    Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill 27599 7260, USA
    Brain Res Mol Brain Res 49:113-9. 1997
    Exposure of developing rats to a diet containing elemental tellurium systemically inhibits cholesterol synthesis at the level of squalene epoxidase. At high tellurium exposure levels (> 0...
  86. ncbi Semisynthetic tellurosubtilisin with glutathione peroxidase activity
    Shizhong Mao
    Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, People s Republic of China
    J Am Chem Soc 127:11588-9. 2005
    ....
  87. pmc The Geobacillus stearothermophilus V iscS gene, encoding cysteine desulfurase, confers resistance to potassium tellurite in Escherichia coli K-12
    Juan C Tantaleán
    Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
    J Bacteriol 185:5831-7. 2003
    ..These and other results support the hypothesis that the reduction of tellurite generates superoxide anions and that the primary targets of superoxide damage in E. coli are enzymes with iron-sulfur clusters...
  88. ncbi Biomethylation of selenium and tellurium: microorganisms and plants
    Thomas G Chasteen
    Department of Chemistry, Sam Houston State University, Huntsville, Texas 77341, USA
    Chem Rev 103:1-25. 2003
  89. doi Photocurrent polarization anisotropy of randomly oriented nanowire networks
    Yanghai Yu
    Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
    Nano Lett 8:1352-7. 2008
    ..The main conclusion from these studies, however, is that polarization sensitive devices can be made from random NW networks without the need to align component wires...
  90. doi Mechanism of antimicrobial activity of CdTe quantum dots
    Zhisong Lu
    School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
    Langmuir 24:5445-52. 2008
    ..Thus, CdTe QDs could have the potential to be formulated as a novel antimicrobial material with excellent optical properties...
  91. doi A new nanobiosensor for glucose with high sensitivity and selectivity in serum based on fluorescence resonance Energy transfer (FRET) between CdTe quantum dots and Au nanoparticles
    Bo Tang
    College of Chemistry, Chemical Engineering and Materials Science, Engineering Research Center of Pesticide and Medicine, Intermediate Clean Production, Ministry of Education, Shandong Normal University, Jinan 250014, China
    Chemistry 14:3637-44. 2008
    ..Moreover, the designed nanobiosensor achieves direct detection in biological samples, suggesting the use of nanobiotechnology-based assembled sensors for direct analytical applications in vivo or in vitro...
  92. ncbi Stability and removal of water soluble CdTe quantum dots in water
    Yang Zhang
    Department of Civil and Environmental Engineering, Arizona State University, Tempe, Arizona 85287 5306, USA
    Environ Sci Technol 42:321-5. 2008
    ..Divalent cations (Mg2+ and Ca2+) in tap water induce the formation of settleable QD flocs such that 70-80% of the QGDs by mass settle out...
  93. ncbi Fluorescent II-VI semiconductor quantum dots in living cells: nonlinear microspectroscopy in an optical tweezers system
    Patricia M A Farias
    Departamento de Biofisica e Radiobiologia, UFPE, Recife, PE, Brazil, Departamento de Ciencias Farmaceuticas, UFPE, Recife, PE, Brazil
    J Phys Chem B 112:2734-7. 2008
    ....
  94. doi UV-light induced fabrication of CdCl2 nanotubes through CdSe/Te nanocrystals based on dimension and configuration control
    Jie Zeng
    Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui Province, China
    Nano Lett 8:1318-22. 2008
    ....
  95. ncbi Synthesis of highly luminescent glasses incorporating cdte nanocrystals through sol-gel processing
    Chunliang Li
    Langmuir 20:1-4. 2004
    ..The obtained glass combines excellent optical properties of nanocrystals with the high stability of glass; it emits light of various colors with narrow emission spectra and high photoluminescent efficiency (41%)...
  96. ncbi Anodic electrochemiluminescence of CdTe quantum dots and its energy transfer for detection of catechol derivatives
    Xuan Liu
    MOE Key Laboratory of Analytical Chemistry for Life Science, Department of Chemistry, Nanjing University, Nanjing 210093, P R China
    Anal Chem 79:8055-60. 2007
    ..Both ascorbic acid and uric acid, which are common interferences, did not interfere with the detection of catechol derivatives in practical biological samples...
  97. ncbi Biological assembly of nanocircuit prototypes from protein-modified CdTe nanowires
    Ying Wang
    Department of Chemical Engineering 2300 Hayward, H H Dow Bldg, University of Michigan, Ann Arbor, MI 48109, USA
    Nano Lett 5:243-8. 2005
    ..It was attributed to high tunneling barrier created by protein molecules wedged between the nanowires. Suggestions are made how to reduce it or use the insulating gap between the nanowires as a framework for single-electron devices...
  98. ncbi Nanorod heterostructures showing photoinduced charge separation
    Sandeep Kumar
    Department of Chemistry, Institute for Optical Sciences, and Centre for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario, Canada
    Small 3:1633-9. 2007
    ..The long-lived charge transfer states in these type II semiconductors may make them attractive for photovoltaic applications...
  99. ncbi Characterization of quantum dots using capillary zone electrophoresis
    Mark Pereira
    Department of Chemistry, Ottawa Carleton Chemistry Institute, Carleton University, Ottawa, ON, Canada
    Electrophoresis 28:2874-81. 2007
    ..This preliminary knowledge will serve as a basis for new CE immunoassay studies of QD-biomolecule conjugates and their immunocomplexes with target analytes...
  100. ncbi Luminescent CdTe and CdSe semiconductor nanocrystals: preparation, optical properties and applications
    Ying Wang
    J Nanosci Nanotechnol 8:1068-91. 2008
    ....
  101. ncbi Exploration of functionalized CdTe nanoparticles for latent fingerprint detection
    Kwan H Cheng
    Department of Physics, Texas Tech University, Lubbock, Texas 79409, USA
    J Nanosci Nanotechnol 8:1170-3. 2008
    ....

Research Grants45

  1. CELLULAR AND MOLECULAR RESPONSES TO NEUROTOXIC INSULTS
    Pierre Morell; Fiscal Year: 1992
    ..One of the important models to be used is the primary demyelination of the PNS caused by tellurium. Demyelination is coincident with a block in cholesterol synthesis, and involves degradation of the blood-nerve ..
  2. THIOETHER S-METHYLTRANSFERASE IN METABOLISM
    JERALD HOFFMAN; Fiscal Year: 1990
    ..to be S- adenosylmethionine:thioether S-methyltransferase (TEMTase), although it also methylates selenium and tellurium atoms in seleno- or telluroethers...
  3. Development of ZnTe Powder Phosphor for Protein Crystallographic X-ray Detectors
    CHRISTOPHER SUMMERS; Fiscal Year: 2009
    ..1037E, and similar band gaps (2.3eV for ZnTe;2.7eV for ZnSe). But the absorption edges of tellurium (4,341eV, 31,814eV) are far away from the selenium edge...
  4. SE AND TE AS X-RAY AND NMR PROBES OF BIOMACROMOLECULES
    JEROME ODOM; Fiscal Year: 1992
    The long-term objective of this research is to utilize the incorporation of selenium or tellurium, either externally (through the association of Se or Te containing substrates, inhibitors, or coenzymes) or internally (via in vivo protein ..
  5. DESIGN, SYNTHESIS AND STUDY OF NEW SENSITIZERS FOR PDT
    MICHAEL DETTY; Fiscal Year: 2001
    ..can be obtained by replacing oxygen or sulfur in the sensitizer chromophore with the heavy atoms selenium or tellurium. Selenium and tellurium analogues of both the anticarcinoma agent AA1 and the rhodamine dyes will be prepared ..
  6. DESIGN, SYNTHESIS AND STUDY OF NEW SENSITIZERS FOR PDT
    MICHAEL DETTY; Fiscal Year: 2003
    ..can be obtained by replacing oxygen or sulfur in the sensitizer chromophore with the heavy atoms selenium or tellurium. Selenium and tellurium analogues of both the anticarcinoma agent AA1 and the rhodamine dyes will be prepared ..
  7. DESIGN, SYNTHESIS AND STUDY OF NEW SENSITIZERS FOR PDT
    MICHAEL DETTY; Fiscal Year: 2004
    ..can be obtained by replacing oxygen or sulfur in the sensitizer chromophore with the heavy atoms selenium or tellurium. Selenium and tellurium analogues of both the anticarcinoma agent AA1 and the rhodamine dyes will be prepared ..
  8. DESIGN, SYNTHESIS AND STUDY OF NEW SENSITIZERS FOR PDT
    MICHAEL DETTY; Fiscal Year: 2002
    ..can be obtained by replacing oxygen or sulfur in the sensitizer chromophore with the heavy atoms selenium or tellurium. Selenium and tellurium analogues of both the anticarcinoma agent AA1 and the rhodamine dyes will be prepared ..
  9. Development of ZnTe Powder Phosphor for Protein Crystallographic X-ray Detectors
    CHRISTOPHER SUMMERS; Fiscal Year: 2006
    ..ZnTe will solve this problem, since the tellurium absorption anomalies are at different X-ray energies (4,341eV and 31,814eV)...
  10. THIOREDOXIN REDUCTASES AND CANCER
    Garth Powis; Fiscal Year: 2001
    ..identified a novel class of potent and specific thioredoxin reductase inhibitors based on organic derivatives of tellurium. He will investigate the mechanism of action of Se in regulating tumor growth and thioredoxin reductases, clone ..
  11. THIOREDOXIN REDUCTASES AND CANCER
    Garth Powis; Fiscal Year: 1999
    ..identified a novel class of potent and specific thioredoxin reductase inhibitors based on organic derivatives of tellurium. He will investigate the mechanism of action of Se in regulating tumor growth and thioredoxin reductases, clone ..
  12. THIOREDOXIN REDUCTASES AND CANCER
    Garth Powis; Fiscal Year: 2000
    ..identified a novel class of potent and specific thioredoxin reductase inhibitors based on organic derivatives of tellurium. He will investigate the mechanism of action of Se in regulating tumor growth and thioredoxin reductases, clone ..
  13. TELLURIUM AS HEAVY ATOM FOR PROTEIN STRUCTURE DETERMINATION
    Gregory Petsko; Fiscal Year: 1999
    ..In addition, particularly in the case of nucleic acids, we anticipate that this approach to selective labeling will offer a substantial complement to structural studies via uniform 13C enrichment. ..
  14. CRYSTALLOGRAPHIC STUDIES OF SIGMA70 SUBUNIT OF E COLI RNA POLYMERASE
    Seth Darst; Fiscal Year: 2000
    ..is not general and we obtain protein substituted at 10 sites with telluromethionine, the larger isomorphous signal from tellurium (because of the larger number of protons) would likely allow us to solve for the sites.
  15. ENZYMATIC MECHANISMS OF SULFUR NUCLEOSIDE METABOLISM (NIH GM 31186)
    GEORGE MARKHAM; Fiscal Year: 2000
    ..We are following our experimental studies with theoretical investigations of the effects of Tellurium replacement of Sulfur on hydrogen bonding and electrostatic interactions that might occur in a variety of ..
  16. SYNTHESIS OF STABLE ISOTOPE LABELED NUCLEOTIDES
    LOUIS SILKS; Fiscal Year: 1999
    ..We are following our experimental studies with theoretical investigations of the effects of Tellurium replacement of Sulfur on hydrogen bonding and electrostatic interactions that might occur in a variety of ..
  17. In-vivo intravascular autoradiography with storage phosphor detector
    POLAD SHIKHALIEV; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  18. In-vivo intravascular autoradiography with storage phosphor detector
    POLAD SHIKHALIEV; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable]..
  19. LUMINESCENT QUANTUM DOTS AS BIOLOGICAL LABELS
    Shuming Nie; Fiscal Year: 2000
    ..Quantum dot bioconjugates are expected to be available in large quantities and in lyphophilized forms, for broad distribution to the scientific community. ..
  20. METAL NANOPARTICLES FOR ULTRATRACE BIOMOLECULE DETECTION
    Shuming Nie; Fiscal Year: 2001
    ..A potential clinical application i to determine the viral RNA load in infectious diseases such as HIV and hepatitis. ..
  21. Emory-GA Tech Nanotechnology Center for Personalized an*
    Shuming Nie; Fiscal Year: 2008
    ....
  22. Nanotechnology Linking Biomarkers with Cancer Behavior
    Shuming Nie; Fiscal Year: 2006
    ..abstract_text> ..
  23. Nanotechnology Linking Biomarkers with Cancer Behavior
    Shuming Nie; Fiscal Year: 2007
    ..abstract_text> ..
  24. Nanotechnology Linking Biomarkers with Cancer Behavior
    Shuming Nie; Fiscal Year: 2005
    ..abstract_text> ..
  25. Bioaffinity Nanoparticle Probes for Bioimaging
    Shuming Nie; Fiscal Year: 2007
    ..abstract_text> ..
  26. Nanotechnology Linking Biomarkers with Cancer Behavior
    Shuming Nie; Fiscal Year: 2008
    ..abstract_text> ..
  27. LUMINESCENT QUANTUM DOTS AS BIOLOGICAL LABELS
    Shuming Nie; Fiscal Year: 2003
    ..Quantum dot bioconjugates are expected to be available in large quantities and in lyphophilized forms, for broad distribution to the scientific community. ..
  28. METAL NANOPARTICLES FOR ULTRATRACE BIOMOLECULE DETECTION
    Shuming Nie; Fiscal Year: 2002
    ..A potential clinical application i to determine the viral RNA load in infectious diseases such as HIV and hepatitis. ..
  29. LUMINESCENT QUANTUM DOTS AS BIOLOGICAL LABELS
    Shuming Nie; Fiscal Year: 2002
    ..Quantum dot bioconjugates are expected to be available in large quantities and in lyphophilized forms, for broad distribution to the scientific community. ..
  30. METAL NANOPARTICLES FOR ULTRATRACE BIOMOLECULE DETECTION
    Shuming Nie; Fiscal Year: 1999
    ..A potential clinical application i to determine the viral RNA load in infectious diseases such as HIV and hepatitis. ..
  31. METAL NANOPARTICLES FOR ULTRATRACE BIOMOLECULE DETECTION
    Shuming Nie; Fiscal Year: 2001
    ..A potential clinical application i to determine the viral RNA load in infectious diseases such as HIV and hepatitis. ..
  32. METAL NANOPARTICLES FOR ULTRATRACE BIOMOLECULE DETECTION
    Shuming Nie; Fiscal Year: 2000
    ..A potential clinical application i to determine the viral RNA load in infectious diseases such as HIV and hepatitis. ..
  33. Emory-GA Tech Nanotechnology Center for Personalized an*
    Shuming Nie; Fiscal Year: 2007
    ....
  34. Nanotechnology Linking Biomarkers with Cancer Behavior
    Shuming Nie; Fiscal Year: 2004
    ..abstract_text> ..
  35. LUMINESCENT QUANTUM DOTS AS BIOLOGICAL LABELS
    Shuming Nie; Fiscal Year: 2001
    ..Quantum dot bioconjugates are expected to be available in large quantities and in lyphophilized forms, for broad distribution to the scientific community. ..
  36. Breast Cancer Imaging Using a Solid-State SPECT Camera
    G Zeng; Fiscal Year: 2005
    ..abstract_text> ..
  37. Radio-Immunotherapy (RIT) Planning Using SPECT
    LAWRENCE ZENG; Fiscal Year: 2004
    ..Novel image reconstruction algorithms will be developed to provided quantitative SPECT images. Our hypothesis will be verified through human observer studies and Channelized Hotelling observer studies. ..
  38. Small Animal SPECT Using a Skew-Slit Collimator
    G Zeng; Fiscal Year: 2008
    ..Our system uses perpendicular slits to replace the pinholes. As a result, the image resolution is improved. It means that we can see smaller objects. This new system will be very important in small animal imaging. ..
  39. Image Reconstruction with Solid Srate SPECR
    LAWRENCE ZENG; Fiscal Year: 2005
    ..abstract_text> ..