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Chemical Compound Review

Niobium-97     niobium

Synonyms: AC1L50GN, Niobium, isotope of mass 97
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Disease relevance of niobium


High impact information on niobium

  • Experiments used the BCS density of states in superconducting niobium for transparency distribution probing [3].
  • Matrix isolation infrared spectroscopic and theoretical studies on the reactions of niobium and tantalum mono- and dioxides with methane [4].
  • The influence of niobium and vanadium as alloying elements on titanium alloy passivity have been investigated in Hanks' Balanced Salt Solution (HBSS), at 37 degrees C and pH 6.9.Ti6Al4V and Ti6Al6Nb have been considered [5].
  • These surfaces can be used to compare and contrast the response of osteoblasts to Ti and other alloy components, such as Al, V, or Nb, which are used in load-bearing medical implants [6].
  • Synthesis of a homoleptic niobium(V) thiolate complex and the preparation of niobium sulfide via thio "sol-gel" and vapor phase thin-film experiments [7].

Biological context of niobium

  • The best antimicrobial effects were observed in the slides of stainless steel treated at 700 degrees C and 800 degrees C using an initial cell density of approximately 10(5) cells ml(-1) and phosphate-buffered saline as the solution in which the bacteria came into contact with copper and niobium-containing steel [8].
  • In safety assessment of French long-lived nuclear waste disposal, data concerning the mobility and the bioavailability of Nb in soils are needed as well as general trends of its fate in the specific environment around the site of French underground research laboratory [9].
  • Electrical properties of niobium-doped titanium dioxide. 2. Equilibration kinetics [10].
  • New anatase-type titania solid solutions co-doped with niobium and aluminum (Til-2xNbxAIlxO2 (X = 0 -0.20)) were synthesized as nanoparticles from precursor solutions of TiOSO4, NbCl5, and Al(NO3)3 under mild hydrothermal conditions at 180 degrees C for 5 h using the hydrolysis of urea [11].

Anatomical context of niobium


Associations of niobium with other chemical compounds

  • Single-crystal X-ray diffraction data (Mo Kalpha radiation) are used to re-refine the structure of RbNbOB2O5, rubidium niobium oxo pyroborate [16].
  • The niobium filtration removes the molybdenum K beta line almost completely from the beam spectrum whereas a Mo filtration is needed to avoid the increases both in the low-energy component of the incident beam and in the higher energy component of the transmitted one [17].
  • In vitro experiments have been carried out to study the solubility and metabolic behaviour in human lung tissue and plasma of hard metal alloy constituents such as cobalt, tungsten, tantalum, titanium and niobium [18].
  • The experimental results obtained with indium and niobium oxides (critical concentrations of about 0.35 mol dm(-3)) confirmed this trend [19].
  • OBJECTIVE: To compare the first generation VIXA (Gendex, Milan, Italy) and the RVG-S (Trophy Radiologie, Vincennes, France) for detection of defects in an aluminium test object at various exposures both with and without added niobium filtration [20].

Gene context of niobium

  • Niobium disulfide, NbS(2), has been successfully prepared via a thio "sol-gel" process using [Nb(SC(6)H(3)Me(2)-2,6)(5)] as the metal source [7].
  • A small-volume grid-supported niobium target was constructed for the production of [18F]-fluoride on a CTI RDS 112 cyclotron [21].
  • An in vitro investigation was carried out to compare CCD-based intraoral radiographic systems with E-speed film for the detection of proximal enamel defects beneath orthodontic bands, with and without added niobium filtration to attenuate the x-ray beam [22].

Analytical, diagnostic and therapeutic context of niobium


  1. Obstructive flow-volume loop contours after single lung transplantation. Ross, D.J., Belman, M.J., Mohsenifar, Z., Nathan, S.D., Kass, R.M., Koerner, S.K. J. Heart Lung Transplant. (1994) [Pubmed]
  2. Midcycle increase of prolactin seen in normal women is absent in subjects with unexplained infertility. Subramanian, M.G., Kowalczyk, C.L., Leach, R.E., Lawson, D.M., Blacker, C.M., Ginsburg, K.A., Randolph, J.F., Diamond, M.P., Moghissi, K.S. Fertil. Steril. (1997) [Pubmed]
  3. Universal distribution of transparencies in highly conductive Nb/AlO(x)/Nb junctions. Naveh, Y., Patel, V., Averin, D.V., Likharev, K.K., Lukens, J.E. Phys. Rev. Lett. (2000) [Pubmed]
  4. Matrix isolation infrared spectroscopic and theoretical studies on the reactions of niobium and tantalum mono- and dioxides with methane. Wang, G., Lai, S., Chen, M., Zhou, M. The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment & general theory. (2005) [Pubmed]
  5. The influence of niobium and vanadium on passivity of titanium-based implants in physiological solution. Metikos-Huković, M., Kwokal, A., Piljac, J. Biomaterials (2003) [Pubmed]
  6. Chemically patterned, metal oxide based surfaces produced by photolithographic techniques for studying protein- and cell-surface interactions I: Microfabrication and surface characterization. Winkelmann, M., Gold, J., Hauert, R., Kasemo, B., Spencer, N.D., Brunette, D.M., Textor, M. Biomaterials (2003) [Pubmed]
  7. Synthesis of a homoleptic niobium(V) thiolate complex and the preparation of niobium sulfide via thio "sol-gel" and vapor phase thin-film experiments. Carmalt, C.J., Dinnage, C.W., Parkin, I.P., White, A.J., Williams, D.J. Inorganic chemistry. (2002) [Pubmed]
  8. Bactericidal activity of copper and niobium-alloyed austenitic stainless steel. Baena, M.I., M??rquez, M.C., Matres, V., Botella, J., Ventosa, A. Curr. Microbiol. (2006) [Pubmed]
  9. Retention and phytoavailability of radioniobium in soils. Echevarria, G., Morel, J.L., Leclerc-Cessac, E. Journal of environmental radioactivity. (2005) [Pubmed]
  10. Electrical properties of niobium-doped titanium dioxide. 2. Equilibration kinetics. Sheppard, L.R., Bak, T., Nowotny, J. The journal of physical chemistry. B, Condensed matter, materials, surfaces, interfaces & biophysical (2006) [Pubmed]
  11. New anatase-type Til-2xNbxAlxO2 solid solution nanoparticles: direct formation, phase stability, and photocatalytic performance. Hirano, M., Ito, T. Journal of nanoscience and nanotechnology (2006) [Pubmed]
  12. Selective intra-lysosomal concentration of niobium in kidney and bone marrow cells: a microanalytical study. Berry, J.P., Bertrand, F., Galle, P. Biometals (1993) [Pubmed]
  13. In vitro human monocyte response to wear particles of titanium alloy containing vanadium or niobium. Rogers, S.D., Howie, D.W., Graves, S.E., Pearcy, M.J., Haynes, D.R. The Journal of bone and joint surgery. British volume. (1997) [Pubmed]
  14. Skin exposure and thyroid dose distribution using niobium filtration. Byrne, C.M., Pharoah, M.J., Wood, R.E. Journal (Canadian Dental Association) (1991) [Pubmed]
  15. Heavy ion induced changes in small intestinal parameters. Carr, K.E., McCullough, J.S., Brennan, P., Hayes, T.L., Ainsworth, E.J., Nelson, A.C. Advances in space research : the official journal of the Committee on Space Research (COSPAR). (1994) [Pubmed]
  16. Towards a unified description of the AMOB2O5 (A=K, Rb, Cs, Tl; M=Nb, Ta) family of compounds. Schmid, S., Withers, R.L., Corker, D., Baules, P. Acta Crystallogr., B (2000) [Pubmed]
  17. Niobium/molybdenum K-edge filtration in mammography: contrast and dose evaluation. Calicchia, A., Gambaccini, M., Indovina, P.L., Mazzei, F., Pugliani, L. Physics in medicine and biology. (1996) [Pubmed]
  18. Trace metal lung disease: in vitro interaction of hard metals with human lung and plasma components. Edel, J., Sabbioni, E., Pietra, R., Rossi, A., Torre, M., Rizzato, G., Fraioli, P. Sci. Total Environ. (1990) [Pubmed]
  19. The specific adsorption of sodium cations on less common metal oxides at high ionic strengths. Kosmulski, M., Rosenholm, J.B. Journal of colloid and interface science. (2002) [Pubmed]
  20. Perceptibility of defects in an aluminum test object: a comparison of the RVG-S and first generation VIXA systems with and without added niobium filtration. Wakoh, M., Farman, A.G., Scarfe, W.C., Kelly, M.S., Kuroyanagi, K. Dento maxillo facial radiology. (1995) [Pubmed]
  21. A grid-mounted niobium body target for the production of reactive [18F]fluoride. Nye, J.A., Avila-Rodriguez, M.A., Nickles, R.J. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. (2006) [Pubmed]
  22. RVG-S, VIXA, and Ektaspeed film in detection of proximal enamel defects under orthodontic bands. Reichl, P., Farman, A.G., Scarfe, W.C., Goldsmith, L.J. The Angle orthodontist. (1996) [Pubmed]
  23. Characterization of poly(L-lysine)-graft-poly(ethylene glycol) assembled monolayers on niobium pentoxide substrates using time-of-flight secondary ion mass spectrometry and multivariate analysis. Wagner, M.S., Pasche, S., Castner, D.G., Textor, M. Anal. Chem. (2004) [Pubmed]
  24. Three-dimensional cubic mesoporous molecular sieves of FDU-1 containing niobium: dependence of niobium source on structural properties. Nowak, I., Jaroniec, M. Langmuir : the ACS journal of surfaces and colloids. (2005) [Pubmed]
  25. Stoichiometry and valence measurements of niobium oxides using electron energy-loss spectroscopy. Olszta, M.J., Wang, J., Dickey, E.C. Journal of microscopy (2006) [Pubmed]
  26. Determination of niobium in pyrochlore ore by differential pulse polarography. Lichtig, J., Andrade, R.F. Fresenius' journal of analytical chemistry. (2001) [Pubmed]
  27. Effects of niobium filtration and constant potential on image quality in dental radiography. 2. Objective assessment. Price, C., McDonnell, D. Dento maxillo facial radiology. (1992) [Pubmed]
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