alkaline earth metals

Summary

Summary: Metals that constitute the group 2 (formerly group IIa) of the periodic table.

Top Publications

  1. Dong W, Brooks S. Determination of the formation constants of ternary complexes of uranyl and carbonate with alkaline earth metals (Mg2+, Ca2+, Sr2+, and Ba2+) using anion exchange method. Environ Sci Technol. 2006;40:4689-95 pubmed
    ..formation constants of ternary complexes (MUO2(CO3)3(2-) and M2UO2(CO3)3(0)) of uranyl and carbonate with alkaline earth metals (M2+ denotes Mg2+, Ca2+, Sr2+, and Ba2+) were determined with an anion exchange method by varying the ..
  2. Hiroi Z, Horiuchi S. High-voltage high-resolution electron microscopy study of alkaline-earth copper oxides. Microsc Res Tech. 1998;40:251-64 pubmed
  3. Smith M, Pirrat P, Pearson A, Kurtis C, Trinh C, Gaule T, et al. Exploring the roles of the metal ions in Escherichia coli copper amine oxidase. Biochemistry. 2010;49:1268-80 pubmed publisher
    ..Our studies indicate that binding of metal ions in the peripheral sites, while not essential, is important for maximal enzymatic activity in the mature enzyme...
  4. Kalainathan S, Kumari P. Comparative study of pure and alkaline earth metallic doped cadmium mercury thiocyanate single crystals--gel technique. Spectrochim Acta A Mol Biomol Spectrosc. 2009;73:127-32 pubmed publisher
    ..Vickers microhardness studies on the grown crystals reveal that they belong to soft material category. Employing powder Kurtz method, their second harmonic generation efficiencies were measured in comparison with urea...
  5. McGraw K. An update on the honesty of melanin-based color signals in birds. Pigment Cell Melanoma Res. 2008;21:133-8 pubmed publisher
    ..Here, I review recent studies of and evidence for these honesty-reinforcing mechanisms...
  6. Sillanpaa M, Orama M, Ramo J, Oikari A. The importance of ligand speciation in environmental research: a case study. Sci Total Environ. 2001;267:23-31 pubmed
    ..Alkaline earth metal chelation plays a significant role in the speciation of EDTA and DTPA when there is a noticeable molar excess of complexing agents compared with transition metals...
  7. Nesterenko P, Fedyanina O, Volgin Y, Jones P. Ion chromatographic investigation of the ion-exchange properties of microdisperse sintered nanodiamonds. J Chromatogr A. 2007;1155:2-7 pubmed
    ..For the first time chromatographic separations of model mixtures of cations on diamonds have been obtained...
  8. Storm O, Lüning U. How to synthesize macrocycles efficiently by using virtual combinatorial libraries. Chemistry. 2002;8:793-8 pubmed
    ..The scope of this thermodynamically controlled, reversible approach for macrocycle syntheses is illustrated...
  9. Balter V, Simon L. Diet and behavior of the Saint-Césaire Neanderthal inferred from biogeochemical data inversion. J Hum Evol. 2006;51:329-38 pubmed
    ..In behavioral terms, this result supports the hypothesis that this Neanderthal carried the foodstuffs back to the Saint-Césaire shelter before their consumption...

More Information

Publications62

  1. Freire E, Vega D, Baggio R. Zoledronate complexes. III. Two zoledronate complexes with alkaline earth metals: [Mg(C(5)H(9)N(2)O(7)P(2))(2)(H(2)O)(2)] and [Ca(C(5)H(8)N(2)O(7)P(2))(H(2)O)](n). Acta Crystallogr C. 2010;66:m166-70 pubmed publisher
  2. Ockwig N, Cygan R, Criscenti L, Nenoff T. Molecular dynamics studies of nanoconfined water in clinoptilolite and heulandite zeolites. Phys Chem Chem Phys. 2008;10:800-7 pubmed publisher
    ..e. Si:Al ratios) has a lesser impact...
  3. Frański R, Gierczyk B. Cluster ion formation between 2,5-diphenyl-1,3,4-oxa(thia)diazole and alkali earth metal cations studied by electrospray ionization mass spectrometry. Rapid Commun Mass Spectrom. 2006;20:317-20 pubmed
  4. Fini A, Fazio G, Rosetti F, Angeles Holgado M, Iruin A, Alvarez Fuentes J. Diclofenac salts. III. Alkaline and earth alkaline salts. J Pharm Sci. 2005;94:2416-31 pubmed
    ..Decomposition exotherms, before or soon after the melting, appear below 300 degrees C. The ammonium salt is thermally unstable and, when heated to start dehydration, dissociates and leaves acidic diclofenac...
  5. Evseeva T, Geras kin S. [The action of 232Th separately and in combination with heavy and alkaline metal salts on Tradescantia (clone 02)]. Radiats Biol Radioecol. 2000;40:456-61 pubmed
    ..The observed synergistic effects of the combined action of 232Th and metal ions should be taken into account when controlling the radionuclide level in the environment...
  6. Mori M, Hu W, Hasebe K, Tanaka S, Tanaka K. Use of phosphobetaine-type zwitterionic surfactant for the determination of alkali and alkaline earth metal ions and ammonium ion in human saliva by capillary electrophoresis. Anal Bioanal Chem. 2002;374:75-9 pubmed
    ..These five species of the common inorganic cations in human saliva samples were detected successfully within 2 min by the proposed system with direct sample injection...
  7. Piotrowska S, Machoy Z, Chlubek D. [Calcium, magnesium, fluoride, and phosphorus content in antlers and skull bones of roe deer (Capreolus capreolus) in relation to age]. Ann Acad Med Stetin. 2006;52 Suppl 1:83-7 pubmed
    ..This study was undertaken to compare calcium, magnesium, fluoride, and phosphorus content in antlers and skull bones of roe deer in relation to their age and habitat...
  8. Hereijgers B, Weckhuysen B. Selective oxidation of methanol to hydrogen over gold catalysts promoted by alkaline-earth-metal and lanthanum oxides. ChemSusChem. 2009;2:743-8 pubmed publisher
    ..Therefore, the catalytic activity could be enhanced by decreasing the gold particle size through deposition on lanthanum oxide supported on high-surface-area alumina...
  9. Zhao Y, Truhlar D. Comparative DFT study of van der Waals complexes: rare-gas dimers, alkaline-earth dimers, zinc dimer, and zinc-rare-gas dimers. J Phys Chem A. 2006;110:5121-9 pubmed
    ..4) The combined mean percentage unsigned error in geometries and energetics shows that M05-2X and MPWB1K are the overall best methods for the prediction of van der Waals interactions in metal and rare-gas van der Waals dimers...
  10. Adamson J, Hakansson K. Electron capture dissociation of oligosaccharides ionized with alkali, alkaline Earth, and transition metals. Anal Chem. 2007;79:2901-10 pubmed
    ..Our results demonstrate that ECD of metal-adducted oligosaccharides is a valuable tool for structural characterization of oligosaccharides...
  11. Keown D, Favas G, Hayashi J, Li C. Volatilisation of alkali and alkaline earth metallic species during the pyrolysis of biomass: differences between sugar cane bagasse and cane trash. Bioresour Technol. 2005;96:1570-7 pubmed
    ..The difference in Cl content between bagasse and cane trash was not sufficient to fully explain the difference in the volatilisation of Mg and Ca...
  12. Nara M, Yumoto F, Kagi H, Tanokura M. Infrared spectroscopic study of the binding of divalent cations to Akazara scallop troponin C: the effect of the methylene side chain of glutamate residue. Biopolymers. 2008;89:595-9 pubmed publisher
    ..The metal-ligand interaction at position 12 of site IV is discussed in comparison with the coordination mode of the side chain COO- group of the wild-type TnC C-lobe...
  13. Kunnas Hiltunen S, Haukka M, Vepsalainen J, Ahlgrén M. Alkaline and alkaline earth metal complexes of dianhydride derivatives of clodronate and their hydrolysis products. Dalton Trans. 2010;39:5310-8 pubmed publisher
    ..Clodronate, however, is able to extend the dimensionality to 3D by coordination or hydrogen bonding...
  14. Ozaki T, Ambe S, Abe T, Francis A. Competitive inhibition and selectivity enhancement by Ca in the uptake of inorganic elements (Be, Na, Mg, K, Ca, Sc, Mn, Co, Zn, Se, Rb, Sr, Y, Zr, Ce, Pm, Gd, Hf) by carrot (Daucus carota cv. U.S. harumakigosun). Biol Trace Elem Res. 2005;103:69-82 pubmed
    ..These observations suggest that the presence of Ca in the uptake solution enhances the selectivity in the uptake of metabolically important elements against unwanted elements...
  15. Liu H, Song J, Zhang S, Macka M, Haddad P. Investigation on mechanism for separation of alkali, alkaline metal and ammonium cations in nonaqueous capillary electrophoresis. Se Pu. 2004;22:325-8 pubmed
  16. Oliveira B, Araujo R, Carvalho A, Ramos M. A theoretical study of dihydrogen bonds in small protonated rings: aziridine and azetidine cations. Spectrochim Acta A Mol Biomol Spectrosc. 2010;75:563-6 pubmed publisher
  17. Krom B, Warner J, Konings W, Lolkema J. Complementary metal ion specificity of the metal-citrate transporters CitM and CitH of Bacillus subtilis. J Bacteriol. 2000;182:6374-81 pubmed
    ..The potential physiological function of the two transporters is discussed...
  18. Koch K, Aggerholm T, Nanita S, Cooks R. Clustering of nucleobases with alkali metals studied by electrospray ionization tandem mass spectrometry: implications for mechanisms of multistrand DNA stabilization. J Mass Spectrom. 2002;37:676-86 pubmed
    ..These doubly charged 10- and 15-mers are tentatively attributed to the formation of pentamer/ammonium cation/ pentamer sandwich structures...
  19. Bushmarina N, Blanchet C, Vernier G, Forge V. Cofactor effects on the protein folding reaction: acceleration of alpha-lactalbumin refolding by metal ions. Protein Sci. 2006;15:659-71 pubmed
    ..They also suggest new possibilities to investigate the presence of residual native structures in the unfolded state of protein and the effects of such structures on the protein folding reaction and on protein stability...
  20. Wilson R, Minton G. The comparative uptake of Ba2+ and other alkaline earth metals by plant mitochondria. Biochim Biophys Acta. 1974;333:22-7 pubmed
    ..aureus L) mitochondria is examined and its uptake properties compared with the accumulation of other alkaline earth metals by plant mitochondria...
  21. Rodriguez Cruz S, Williams E. Gas-phase reactions of hydrated alkaline earth metal ions, M2+ (H2O)n (M = Mg, Ca, Sr, Ba and n = 4-7), with benzene. J Am Soc Mass Spectrom. 2001;12:250-7 pubmed
    ..Such studies should also provide a model and some insight into the relative binding affinities of divalent metal ions to aromatic residues on peptides and proteins...
  22. Zheng J, Li Z, Wu A, Zhou H. AFM studies of DNA structures on mica in the presence of alkaline earth metal ions. Biophys Chem. 2003;104:37-43 pubmed
    ..The four alkaline earth metal ions cause the B-A transition in different degrees, in which Sr(2+) induces the greatest structural transition...
  23. Ahmed A, Sulaiman W. Evaluation of groundwater and soil pollution in a landfill area using electrical resistivity imaging survey. Environ Manage. 2001;28:655-63 pubmed
    ..With the exception of Cd, the concentration ranges of all trace elements (Cu, Zn, Cr, Pb, and Ni) of Seri Petaling landfill soils were below the upper limits of baseline concentrations published from different sources...
  24. Dimitrov G, Neykov M. Alkaline earth metal ions mediated self-assembly in the presence of 1,10-phenanthroline, nitrate and tetrafluoroborate anions. Spectrochim Acta A Mol Biomol Spectrosc. 2007;68:399-403 pubmed
    ..These led to the compounds Mg(phen)4(BF4)2(H2O)3, [Ca(phen)2(H2O)2(NO3)]BF4, Sr(phen)4(OH)(BF4)(H2O) and Ba(phen)3.5(BF4)2(H2O). All the newly synthesized substances were characterized by elemental analysis, IR- and FAB-mass-spectra...
  25. Braga L, Palhares D. Effect of evaporation and pasteurization in the biochemical and immunological composition of human milk. J Pediatr (Rio J). 2007;83:59-63 pubmed
    ..To assess the effects of evaporation and pasteurization of human milk on its biochemical and immunological composition and on its osmolarity...
  26. Madhusudanan K, Kumar B, Kanojiya S, Agnihotri G, Misra A. Tandem mass spectra of divalent metal ion adducts of glycosyl sulfides, sulfoxides and sulfones; distinction among stereoisomers. J Mass Spectrom. 2006;41:1322-33 pubmed
    ..In the sulfones, the adducts dissociate to [M + MetO2SPh]+ and [M - O2SPh]+. In contrast to the alkaline earth metals, which attach to the acetoxy functions, the transition metals attach to the sulfide and sulfoxide ..
  27. Iwase A, Kato H, Kudo A. The effect of alkaline earth metal ion dopants on photocatalytic water splitting by NaTaO(3) powder. ChemSusChem. 2009;2:873-7 pubmed publisher
    ..5 and 1.0 mol % of Sr shows high activities for photocatalytic water splitting without loading of a co-catalyst, and the photocatalytic activity is further improved by loading with a NiO co-catalyst...
  28. Strauss J, Daub J. Optically active cyclic hexapeptides with covalently attached pyrene probes: selective alkaline earth metal ion recognition using excimer emission. Org Lett. 2002;4:683-6 pubmed
    ..Complexation was studied by optical and chiroptical methods. The cyclic peptides are forming 2:1 sandwich complexes with the metal ions...
  29. Gavryushov S, Linse P. Effective interaction potentials for alkali and alkaline earth metal ions in SPC/E water and prediction of mean ion activity coefficients. J Phys Chem B. 2006;110:10878-87 pubmed
  30. Allen R, Shukla M, Burda J, Leszczynski J. Theoretical study of interaction of urate with li(+), na(+), k(+), be(2+), mg(2+), and ca(2+) metal cations. J Phys Chem A. 2006;110:6139-44 pubmed
    ..Consequently, several complexes were found to exist in the water solution. The effect of metal cations on different NH and CO stretching vibrational modes of uric acid has also been discussed...
  31. Dìaz C, Kaplan I, Roszak S. Theoretical study of the electron affinities of the alkaline-earth tetramers possessing Td symmetry: Be4 and Mg4. J Mol Model. 2005;11:330-4 pubmed
    ..Figure: see text]. The lowest unoccupied molecular orbitals in the ground state of Mg4 : a LUMO, symmetry A1, b LUMO + 1, symmetry T2; c the highest occupied molecular orbital (HOMO), symmetry A1 in the ground state of Mg4-...
  32. Schumann H, Schutte S, Kroth H, Lentz D. Butenyl-substituted alkaline-earth metallocenes: a first step towards olefin complexes of the alkaline-earth metals. Angew Chem Int Ed Engl. 2004;43:6208-11 pubmed
  33. Garidel P, Blume A. 1,2-Dimyristoyl-sn-glycero-3-phosphoglycerol (DMPG) monolayers: influence of temperature, pH, ionic strength and binding of alkaline earth cations. Chem Phys Lipids. 2005;138:50-9 pubmed
    ..The latter effect is more pronounced in the case of Ca2+, whereas the binding of Mg2+ and Sr2+ to DMPG is weaker. Site-specific cation binding has to be assumed in addition to electrostatic effects...
  34. Fang X, Ahmad S, Mayo M, Iqbal S. Elemental analysis of urinary calculi by laser induced plasma spectroscopy. Lasers Med Sci. 2005;20:132-7 pubmed
    ..The technique has the potential for routine clinic applications in urological disorder diagnosis...
  35. Crimmin M, Barrett A, Hill M, Hitchcock P, Procopiou P. Bis(diphenylphosphido) derivatives of the heavier group 2 elements. Inorg Chem. 2007;46:10410-5 pubmed
  36. Luiro J, Kukkola M, Saarsalmi A, Tamminen P, Helmisaari H. Logging residue removal after thinning in boreal forests: long-term impact on the nutrient status of Norway spruce and Scots pine needles. Tree Physiol. 2010;30:78-88 pubmed publisher
    ..Thus, needle analysis should be combined with stem growth data in order to achieve a more comprehensive understanding of the effects of WTH on the nutrient status of trees...
  37. Abramson S, Ashkenazi E, Frische K, Goldberg I, Golender L, Greenwald M, et al. Novel podands and macrocycles with diacetal (tetraoxadecalin) cores: synthesis, structure, stereochemistry and cation inclusion. Chemistry. 2003;9:6071-82 pubmed
    ..A number of macrocycles in the series exhibited good complexation with alkaline-earth metal ions...
  38. Ivanova E, Koumanova B. Adsorption of sulfur dioxide on natural clinoptilolite chemically modified with salt solutions. J Hazard Mater. 2009;167:306-12 pubmed publisher
    ..Definite quantities of desorbed SO(3) were registered for all forms, except for the natural clinoptilolite and the samples enriched with alkaline and alkaline earth metal cations...
  39. Aydin F, Soylak M. Separation, preconcentration and inductively coupled plasma-mass spectrometric (ICP-MS) determination of thorium(IV), titanium(IV), iron(III), lead(II) and chromium(III) on 2-nitroso-1-naphthol impregnated MCI GEL CHP20P resin. J Hazard Mater. 2010;173:669-74 pubmed publisher
    ..The separation procedure presented was also applied to the various natural water samples collected from Turkey with satisfactory results...
  40. Kim J, Morozumi T, Hiraga H, Nakamura H. Substituted position effect on twisted intramolecular charge transfer of 1- and 2-anthracene aromatic carboxamides as chemosensors based on linear polyether. Anal Sci. 2009;25:1319-25 pubmed
    ..These results suggested that the TICT relaxation process was effectively able to control using 1(4) and its analogues (1(5), 2(4) and 2(5)) by complex formations...
  41. Ohmoto T, Moriyoshi K, Sakai K, Hamada N, Ohe T. Presence of two trans-o-hydroxybenzylidenepyruvate hydratase-aldolases in naphthalenesulfonate-assimilating Sphingomonas paucimobilis TA-2: comparison of some properties. J Biochem. 2000;127:43-9 pubmed
    ..tHBP HA B was inhibited by PCMB, but tHBP HA A was not. Their K(m) values for tHBP were 9 and 3 M, respectively. tHBP HA B was stable in the range of pH 7.1 to pH 10.7, and tHBP HA A was stable in the range of pH 6.0 to 9.3...
  42. Ringe J, Dorst A, Faber H, Schacht E, Rahlfs V. Superiority of alfacalcidol over plain vitamin D in the treatment of glucocorticoid-induced osteoporosis. Rheumatol Int. 2004;24:63-70 pubmed
    ..We conclude that alfacalcidol plus calcium is highly superior to plain vitamin D3 plus calcium in the treatment of established GIOP...
  43. Bargellini A, Marchesi I, Rizzi L, Cauteruccio L, Masironi R, Simioli M, et al. Selenium interactions with essential and toxic elements in egg yolk from commercial and fortified eggs. J Trace Elem Med Biol. 2008;22:234-41 pubmed publisher
    ..Furthermore, Se+I supplementation was associated with a significant Zn reduction, a finding which needs clarification to avoid attempts to maximize one component affecting the levels of other essential elements...
  44. Kiliç K, Kiliç S. Spatial variability of salinity and alkalinity of a field having salination risk in semi-arid climate in northern Turkey. Environ Monit Assess. 2007;127:55-65 pubmed
    ..Spatial variability in EC and ESP can depend on ground water level, quality of irrigation water, and textural differences...
  45. Aboal J, Fernandez J, Carballeira A. Sampling optimization, at site scale, in contamination monitoring with moss, pine and oak. Environ Pollut. 2001;115:313-6 pubmed
    ..We recommend that a minimum of 30 sampling units are collected when contamination is suspected...
  46. Zhu Y, Yongxin C, Mingli Y, Fritz J. Preparation and applications of weak acid cation exchanger based on monodisperse poly(ethylvinylbenzene-co-divinylbezene) beads. J Chromatogr A. 2005;1085:18-22 pubmed
    ..The column gave good resolution, low detection limits and good repeatability for the separation of common cations. Satisfactory results were also obtained for separations of organic amines and of common cations in rainwater...
  47. Takeda Y, Ishida K, Hasegawa T, Katoh A. Thin-layer chromatographic behavior and separation of alkaline earth metals on silica gel in aqueous sodium perchlorate solution. J Chromatogr A. 2004;1049:233-6 pubmed
    ..Typical chromatograms for the mutual separation of the alkaline earth metals are presented.
  48. Kennedy A, Kirkhouse J, McCarney K, Puissegur O, Smith W, Staunton E, et al. Supramolecular motifs in s-block metal-bound sulfonated monoazo dyes, part 1: structural class controlled by cation type and modulated by sulfonate aryl ring position. Chemistry. 2004;10:4606-15 pubmed
  49. Murugavel R, Kuppuswamy S, Randoll S. Cooperative binding of phosphate anion and a neutral nitrogen donor to alkaline-Earth metal ions. Investigation of group 2 metal-organophosphate interaction in the absence and presence of 1,10-phenanthroline. Inorg Chem. 2008;47:6028-39 pubmed publisher
    ..While compounds 1 and 2 yield M 2P 2O 7, decomposition of 4- 6 results in the formation of M(PO 3) 2, consistent with the M-P ratio in the precursor complexes...
  50. Deng F, Chen S. Self-assembled multilayers of gold nanoparticles: nitrate-induced rectification of quantized capacitance charging and effects of alkaline (earth) ions in aqueous solutions. Phys Chem Chem Phys. 2005;7:3375-81 pubmed
  51. Anbarasi K, Vani G, Balakrishna K, Devi C. Effect of bacoside A on membrane-bound ATPases in the brain of rats exposed to cigarette smoke. J Biochem Mol Toxicol. 2005;19:59-65 pubmed
    ..The results of our study indicate that Bacoside A protects the brain from cigarette smoking induced membrane damage...
  52. Du J, Liu W, Lu J. Chemiluminescence behaviour of alkaline earth metal ions in the potassium permanganate-fluorescein reaction. Luminescence. 2003;18:341-5 pubmed
    ..Furthermore, the feasibility of the application of these reactions to the analysis of these alkaline earth metal ions was evaluated and the analytical parameters of the methods were determined...
  53. Duguid J, Bloomfield V, Benevides J, Thomas G. Raman spectroscopy of DNA-metal complexes. I. Interactions and conformational effects of the divalent cations: Mg, Ca, Sr, Ba, Mn, Co, Ni, Cu, Pd, and Cd. Biophys J. 1993;65:1916-28 pubmed
    ..of B-DNA is largely unperturbed by Mg2+, Ca2+, Sr2+, and Ba2+, suggesting much weaker interactions of the alkaline earth metals with both base and phosphate sites...