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| telluriumSummarySummary: 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
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Tellurite-mediated thiol oxidation in Escherichia coliR J Turner
Department of Biological Sciences, University of Calgary, Alberta, Canada
Microbiology 145:2549-57. 1999The oxyanion of tellurium, tellurite (TeO3(2-)), is toxic to most micro-organisms, particularly gram-negative bacteria. The mechanism of tellurite toxicity is presently unknown...
Tellurite: history, oxidative stress, and molecular mechanisms of resistanceThomas Girard Chasteen
Department of Chemistry, Sam Houston State University, Huntsville, TX, USA
FEMS Microbiol Rev 33:820-32. 2009The 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 ..- Tellurite-mediated disabling of [4Fe-4S] clusters of Escherichia coli dehydratasesIván 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. 2009The 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... - CdTe nanoparticles display tropism to core histones and histone-rich cell organellesJennifer 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... 
Bacterial toxicity of potassium tellurite: unveiling an ancient enigmaJose M Perez
Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
PLoS ONE 2:e211. 2007....- Cysteine metabolism-related genes and bacterial resistance to potassium telluriteDerie 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... - Synthesis, characterisation, and biological studies of CdTe quantum dot-naproxen conjugatesStephen J Byrne
The School of Chemistry, University of Dublin, Ireland
ChemMedChem 2:183-6. 2007 - Glutathione is a target in tellurite toxicity and is protected by tellurite resistance determinants in Escherichia coliR 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... - 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 KF707Valentina Tremaroli
Department of Biology, General Microbiology Unit, Faculty of Sciences, University of Bologna, Via Irnerio 42, 40126 Bologna, Italy
Arch Microbiol 187:127-35. 2007Tellurite (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... - Quantum dot sensitized solar cells. A tale of two semiconductor nanocrystals: CdSe and CdTeJin 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... - UV-enhanced cytotoxicity of thiol-capped CdTe quantum dots in human pancreatic carcinoma cellsShu 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... - Tellurite-induced oxidative stress leads to cell death of murine hepatocarcinoma cellsJuan M Sandoval
Laboratorio de Microbiologia Molecular, Facultad de Quimica y Biologia, Universidad de Santiago de Chile, Santiago, Chile
Biometals 23:623-32. 2010Data regarding tellurium (Te) toxicity are scarce. Studies on its metabolism, performed mainly in bacteria, underline a major role of reactive oxygen species (ROS)... - Variability in tellurite resistance and the ter gene cluster among Shiga toxin-producing Escherichia coli isolated from humans, animals and foodDorothea 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... - Phage inhibition, colicin resistance, and tellurite resistance are encoded by a single cluster of genes on the IncHI2 plasmid R478K 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... - Synthesis and bio-imaging application of highly luminescent mercaptosuccinic acid-coated CdTe nanocrystalsErbo 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... - Electrogenerated chemiluminescence from thiol-capped CdTe quantum dots and its sensing application in aqueous solutionHeyou 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.... - Antimicrobial activity and cellular toxicity of nanoparticle-polymyxin B conjugatesSoonhyang 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... - Conjugating luminescent CdTe quantum dots with biomoleculesChristina 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... - Preparation of highly luminescent CdTe/CdS core/shell quantum dotsJian Wang
Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China
Chemphyschem 10:680-5. 2009.... - Tellurite-induced carbonylation of the Escherichia coli pyruvate dehydrogenase multienzyme complexNataly 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. 2010The soluble tellurium oxyanion, tellurite, is toxic for most organisms... - Tellurite specifically affects squalene epoxidase: investigations examining the mechanism of tellurium-induced neuropathyM 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... - Design and synthesis of highly luminescent near-infrared-emitting water-soluble CdTe/CdSe/ZnS core/shell/shell quantum dotsWenjin 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... - The exposure of bacteria to CdTe-core quantum dots: the importance of surface chemistry on cytotoxicityRaphael 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... - Interfacial charge transfer between CdTe quantum dots and gram negative vs gram positive bacteriaEve 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... - Studying nanotoxic effects of CdTe quantum dots in Trypanosoma cruziCecilia 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... - The dihydrolipoamide dehydrogenase of Aeromonas caviae ST exhibits NADH-dependent tellurite reductase activityMiguel 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... - Extracellular microbial synthesis of biocompatible CdTe quantum dotsHaifeng 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... - Controllable synthesis and cell-imaging studies on CdTe quantum dots together capped by glutathione and thioglycolic acidJianniao Tian
College of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, China
J Colloid Interface Sci 336:504-9. 2009.... - Synthesis of coumarins, 4-hydroxycoumarins, and 4-hydroxyquinolinones by tellurium-triggered cyclizationsDonald 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. - New telluride-mediated elimination for novel synthesis of 2',3'-didehydro-2',3'-dideoxynucleosidesJia 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... - Exploring synthetic avenues for the effective synthesis of selenium- and tellurium-containing multifunctional redox agentsSusanne Mecklenburg
Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, PO Box 151150, D 66123, Saarbruecken, Germany
Org Biomol Chem 7:4753-62. 2009.... - Isosteric replacement of sulfur with other chalcogens in peptides and proteinsLuis 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... - Genomic variability of O islands encoding tellurite resistance in enterohemorrhagic Escherichia coli O157:H7 isolatesDiane 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... - Bacterial tellurite resistanceD E Taylor
Dept of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
Trends Microbiol 7:111-5. 1999b>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... - Catalases are NAD(P)H-dependent tellurite reductasesIván 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... - Differences in subcellular distribution and toxicity of green and red emitting CdTe quantum dotsJasmina 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... - Determination of selenium and tellurium compounds in biological samples by ion chromatography dynamic reaction cell inductively coupled plasma mass spectrometryChia 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),.. - Long-term exposure to CdTe quantum dots causes functional impairments in live cellsSung 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... - 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 telluriteManuel A Araya
, , 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... - The synthetic tellurium compound, AS101, is a novel inhibitor of IL-1beta converting enzymeMiri 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... - The product of the cysK gene of Bacillus stearothermophilus V mediates potassium tellurite resistance in Escherichia coliC 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... - In vivo 31P nuclear magnetic resonance investigation of tellurite toxicity in Escherichia coliElke 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... - Phenotypic and molecular analysis of tellurite resistance among enterohemorrhagic Escherichia coli O157:H7 and sorbitol-fermenting O157:NM clinical isolatesMartina 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... - Tellurite effects on Rhodobacter capsulatus cell viability and superoxide dismutase activity under oxidative stress conditionsFrancesca 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... - Role of copper, zinc, selenium and tellurium in the cellular defense against oxidative and nitrosative stressLars-Oliver Klotz
, , , 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... - Pyridine-2,6-bis(thiocarboxylic acid) produced by Pseudomonas stutzeri KC reduces and precipitates selenium and tellurium oxyanionsAnna 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... - Role of a cysteine synthase in Staphylococcus aureusJames 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... - Multifunctional tellurium molecule protects and restores dopaminergic neurons in Parkinson's disease modelsBenjamin 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 .. - Hair growth induction by the Tellurium immunomodulator AS101: association with delayed terminal differentiation of follicular keratinocytes and ras-dependent up-regulation of KGF expressionBenjamin 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... - One-pot synthesis of CdTe nanocrystals and shape control of luminescent CdTe-cystine nanocompositesHaifeng 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 - Tellurium-induced cognitive deficits in rats are related to neuropathological changes in the central nervous systemEwa 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... - Identification and molecular genetic analysis of multiple loci contributing to high-level tellurite resistance in Rhodobacter sphaeroides 2.4.1M 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... - Inhibition of human squalene monooxygenase by tellurium compounds: evidence of interaction with vicinal sulfhydrylsB 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 .. - Facile one-pot synthesis of luminescent, water-soluble, and biocompatible glutathione-coated CdTe nanocrystalsHuifeng Qian
College of Chemistry and Chemical Engineering, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, China
Small 2:747-51. 2006 - The tellurite-resistance determinants tehAtehB and klaAklaBtelB have different biochemical requirementsR 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... - Biomethylation of selenium and tellurium: microorganisms and plantsThomas G Chasteen
Department of Chemistry, Sam Houston State University, Huntsville, Texas 77341, USA
Chem Rev 103:1-25. 2003 - Semisynthetic tellurosubtilisin with glutathione peroxidase activityShizhong 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.... - Sensitivity to potassium tellurite of Escherichia coli cells deficient in CSD, CsdB and IscS cysteine desulfurasesDiana 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... - The Geobacillus stearothermophilus V iscS gene, encoding cysteine desulfurase, confers resistance to potassium tellurite in Escherichia coli K-12Juan 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... - Tellurium causes dose-dependent coordinate down-regulation of myelin gene expressionA D Toews
Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill 27599 7260, USA
Brain Res Mol Brain Res 49:113-9. 1997Exposure 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... - 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 mRNAM T Berciano
Department of Anatomy and Cell Biology, University of Cantabria, Faculty of Medicine, Santander, Spain
Glia 29:246-59. 2000Administration 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 .. - Microwave synthesis of CdSe and CdTe nanocrystals in nonabsorbing alkanesAaron L Washington
Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306 4390, USA
J Am Chem Soc 130:8916-22. 2008..In addition, batch-to-batch variance in size is 4.2 +/- 0.14 nm for 10 repeat experimental runs. The use of a stopped-flow reactor allows near continuous automation of the process leading to potential industrial benefits... - NHS-mediated QDs-peptide/protein conjugation and its application for cell labelingYaming Shan
College of Life Science, Jilin University, Jiefang Road 115, Changchun 130023, PR China
Talanta 75:1008-14. 2008..The biological activities of QDs conjugates are maintained and give superior results in cell labeling. These results are encouraging regarding the application of QDs molecules for use in living cells, diagnostics and drug delivery... - Characterization of water-soluble luminescent quantum dots by fluorescence correlation spectroscopyChaoqing Dong
School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai 200240, PR China
Ann N Y Acad Sci 1130:253-61. 2008..Our preliminary results demonstrate that FCS is a sensitive and efficient tool to characterize fluorescent nanoparticles, such as QDs, at the single-molecule detection level... - Switchable photoluminescence of CdTe nanocrystals by temperature-responsive microgelsM Agrawal
Leibniz Institut fur Polymerforschung Dresden e V, Hohe Strasse 6, Dresden 01069, Germany
Langmuir 24:9820-4. 2008.... - Nanogoniometry with scanning force microscopy: a model study of CdTe thin filmsElisa Palacios Lidón
Dpto Física, Facultad de Quimica Campus Espinardo, Universidad de Murcia, 30100 Murcia, Spain
Small 3:474-80. 2007..The method, which is referred to as nanogoniometry, will be a powerful tool to study in detail the surface of crystalline materials, particularly thin films, with sub-micrometer resolution... - A clean route for preparation of cdte nanocrystals and their conjugation with bacteriumYun Lei
Institute of Physics, Chinese Academy of Sciences, Beijing 100080, PR China
J Nanosci Nanotechnol 6:3784-8. 2006..In alkaline aqueous solution, hydrazine hydrate reduced commercial tellurium to be active reactant, and further reduced to negative bivalent telluride for the preparation of CdTe .. - Accumulation of O-GlcNAc-displaying CdTe quantum dots in cells in the presence of ATPKenichi Niikura
Research Institute for Electronic Science, Hokkaido University, N21W10, Sapporo, Japan
Chembiochem 8:379-84. 2007 - Photocurrent polarization anisotropy of randomly oriented nanowire networksYanghai 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... - Stability and removal of water soluble CdTe quantum dots in waterYang 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... - Branched wires of CdTe nanocrystals using amphiphilic molecules as templatesLi Zhang
Physikalisches Institut, , Wilhelm-Klemm-Str. 10
Small 1:524-7. 2005 - High-rate unidirectional energy transfer in directly assembled CdTe nanocrystal bilayersThomas Franzl
Photonics and Optoelectronics Group, Physics Department and CeNS, , Amalienstr. 54, 80799 Munich, Germany
Small 1:392-5. 2005 - Sequential synthesis of type II colloidal CdTe/CdSe core-shell nanocrystalsKui Yu
Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada
Small 1:332-8. 2005..4-0.5 nm (indicated by TEM); the formation of the first monolayer is proposed. Our synthetic approach is well suited to a practical realization of engineering materials with bandgaps in the near-IR and IR spectral ranges... - Type-II CdSe/CdTe/ZnTe (core-shell-shell) quantum dots with cascade band edges: the separation of electron (at CdSe) and hole (at ZnTe) by the CdTe layerChun-Yen Chen
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
Small 1:1215-20. 2005..Upon excitation of the CdSe/CdTe/ZnTe structure, the long-lived charge separation may further serve as an excellent hole carrier for catalyzing the redox oxidation reaction... - Using cadmium telluride quantum dots as a proton flux sensor and applying to detect H9 avian influenza virusZhang Yun
National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
Anal Biochem 364:122-7. 2007..Furthermore, we applied the QD-labeled chromatophores as a virus detector to detect the H9 avian influenza virus based on antibody-antigen reaction. The results showed that this QD virus detector could be a new virus-detecting device... - Detection of flavonoids and assay for their antioxidant activity based on enlargement of gold nanoparticlesJing Wang
Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
Anal Bioanal Chem 388:1199-205. 2007..Figure Enlargement of Au nanoparticles by flavonoids at cysteamine modified electrode... - Simulations and analysis of self-assembly of CdTe nanoparticles into wires and sheetsZhenli Zhang
Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109 2136, USA
Nano Lett 7:1670-5. 2007..We show that consideration of NP shape, directional attraction, and electrostatic interactions is key to determining the anisotropy of the NP-NP interaction and final self-assembled structures... - Charge separation in type II tunneling structures of close-packed CdTe and CdSe nanocrystalsDieter Gross
Photonics and Optoelectronics Group, Physics Department and Center for Nanoscience CeNS, Ludwig Maximilians Universitat Munchen, 80799 Munich, Germany
Nano Lett 8:1482-5. 2008..Type II heterostructures demonstrated here may find future applications in photovoltaics... - UV-light induced fabrication of CdCl2 nanotubes through CdSe/Te nanocrystals based on dimension and configuration controlJie 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.... - Mechanism of antimicrobial activity of CdTe quantum dotsZhisong 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... - Luminescent CdTe and CdSe semiconductor nanocrystals: preparation, optical properties and applicationsYing Wang
J Nanosci Nanotechnol 8:1068-91. 2008.... - Exploration of functionalized CdTe nanoparticles for latent fingerprint detectionKwan H Cheng
Department of Physics, Texas Tech University, Lubbock, Texas 79409, USA
J Nanosci Nanotechnol 8:1170-3. 2008.... - 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 nanoparticlesBo 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... - Fluorescent II-VI semiconductor quantum dots in living cells: nonlinear microspectroscopy in an optical tweezers systemPatricia 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.... - The use of CdTe quantum dot fluorescent microspheres in fluoro-immunoassays and a microfluidic chip systemQiang Ma
Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, People s Republic of China
Luminescence 22:438-45. 2007..A novel microfluidic chip device with a laser-induced fluorescence system was established and used for the detection of fluorescent microspheres in this study... - Coreactant enhanced anodic electrochemiluminescence of CdTe quantum dots at low potential for sensitive biosensing amplified by enzymatic cycleXuan Liu
Key Laboratory of Analytical Chemistry for Life Science Ministry of Education of China, Department of Chemistry, Nanjing University, Nanjing 210093, PR China
Anal Chem 80:5377-82. 2008..This strategy could be easily realized and opened new avenues for the applications of QDs in ECL biosensing... - A novel density-tunable nanocomposites of CdTe quantum dots linked to dendrimer-tethered multi-wall carbon nanotubesYunlong Zeng
State Key Laboratory for Chemo Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410081 Changsha, China
Spectrochim Acta A Mol Biomol Spectrosc 70:966-72. 2008..These nanocomposits might hold great potential in photoelectron device and biotechnology applications... - Anodic electrochemiluminescence of CdTe quantum dots and its energy transfer for detection of catechol derivativesXuan 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... - Nanorod heterostructures showing photoinduced charge separationSandeep 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... - Characterization of quantum dots using capillary zone electrophoresisMark 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... - Dopant-induced formation of branched CdS nanocrystalsYung-Jung Hsu
Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan 30010, Republic of China
Small 4:951-5. 2008 - Type-I and type-II nanoscale heterostructures based on CdTe nanocrystals: a comparative studyDirk Dorfs
Physikalische Chemie, , Bergstrasse 66b, 01069 Dresden, Germany
Small 4:1148-52. 2008 - Enhancement of intracellular delivery of CdTe quantum dots (QDs) to living cells by Tat conjugationF L Xue
Institute of Genetics, Fudan University, Shanghai, China
J Fluoresc 17:149-54. 2007..1 (+/-0.3) times in QGY cells and 1.5 (+/-0.2) times in MCF7 cells, demonstrating the enhancing effect of Tat conjugation on the intracellular delivery of QDs... - The empirical correlation between size and two-photon absorption cross section of CdSe and CdTe quantum dotsShih-Chieh Pu
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
Small 2:1308-13. 2006..5+/-0.5 and 5.6+/-0.7 to the diameters of CdSe and CdTe QDs, respectively. The results are tentatively rationalized via a theoretical model of two-photon excitation properties in a system incorporating excitons and defects... - Silica-coated CdTe quantum dots functionalized with thiols for bioconjugation to IgG proteinsAbraham Wolcott
Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, USA
J Phys Chem B 110:5779-89. 2006..They are potentially useful for a number of applications in biolabeling and imaging... - Comparative examination of the stability of semiconductor quantum dots in various biochemical buffersKlaus Boldt
Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
J Phys Chem B 110:1959-63. 2006.... - Electric field directed layer-by-layer assembly of highly fluorescent CdTe nanoparticlesJ Sun
Department of Physics, Center of Nanoscience, University of Munich, Amalienstrasse 54, D-80799 Munich, Germany
J Nanosci Nanotechnol 1:133-6. 2001..However, fluorescence investigation indicates that a spacer layer of polyelectrolyte complex between the ITO electrode and the CdTe film is useful to protect the CdTe from being destroyed under high voltages... - One-dimensional semiconductor nanostructures as absorber layers in solar cellsK P Jayadevan
Department of Electronics Engineering and Institute of Electronics, National Chiao-Tung University, Hsinchu 300, Taiwan, Republic of China
J Nanosci Nanotechnol 5:1768-84. 2005..Finally, the characteristics of nanorod-based solar cells are compared with the dye-sensitized and organic solar cells... - Ligand-selective aqueous synthesis of one-dimensional CdTe nanostructuresHao Zhang
Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
Angew Chem Int Ed Engl 45:748-51. 2006 - Hybrid approach to the synthesis of highly luminescent CdTe/ZnS and CdHgTe/ZnS nanocrystalsJames 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... - CdTe nanocrystals: synthesis, optical characterization, and pseudopotential calculation of the band gapT Stirner
Department of Physics, University of Hull, Hull HU6 7RX, United Kingdom
J Nanosci Nanotechnol 1:451-5. 2001....
Research Grants
- DESIGN, SYNTHESIS AND STUDY OF NEW SENSITIZERS FOR PDTMICHAEL 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 ..
- Development of ZnTe Powder Phosphor for Protein Crystallographic X-ray DetectorsCHRISTOPHER 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)...
- THIOREDOXIN REDUCTASES AND CANCERGarth 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 ..
- In-vivo intravascular autoradiography with storage phosphor detectorPOLAD SHIKHALIEV; Fiscal Year: 2007....
- Radio-Immunotherapy (RIT) Planning Using SPECTLAWRENCE 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. ..
- Breast Cancer Imaging Using a Solid-State SPECT CameraG Zeng; Fiscal Year: 2005..abstract_text> ..
- Image Reconstruction with Solid Srate SPECRLAWRENCE ZENG; Fiscal Year: 2005..abstract_text> ..