Metal Ions

Some articles on metal, metal ion, metal ions, ion, ions, metals:

Nucleic Acid Analogues - Base Analogues - Metal Base-pairs
... In metal base-pairing, the Watson-Crick hydrogen bonds are replaced by the interaction between a metal ion with nucleosides acting as ligands ... The possible geometries of the metal that would allow for duplex formation with two bidentate nucleosides around a central metal atom are tetrahedral, dodecahedral ... Metal-complexing with DNA can occur by the formation of non-canonical base pairs from natural nucleobases with participation by metal ions and also by the exchanging the hydrogen atoms that are ...
Electromigration - Failure Mechanisms - Diffusion Mechanisms
... In a homogeneous crystalline structure, because of the uniform lattice structure of the metal ions, there is hardly any momentum transfer between the ... Since the metal ions in these regions are bonded more weakly than in a regular crystal lattice, once the electron wind has reached a certain strength, atoms become ...
Phytochelatin
... Phytochelatins act as chelators, and are important for heavy metal detoxification ... plant at normal concentrations of zinc and copper, two essential metal ions, indicating that phytochelatin is only involved in resistance to metal poisoning ... of phytochelatin, the presence of heavy metal ions that bind to glutathione causes the enzyme to work faster ...
Sphingomyelin Phosphodiesterase - Neutral Sphingomyelinase - Active Site
... The relative catalytic activities of SMase when metal ions are bound to the active site have been studied for divalent metal ions Co2+, Mn2+, Mg2+, Ca2+, and Sr2+ ... Of these five metal ions, Co2+, Mn2+, and Mg2+ bound to the active site result in high catalytic activity of SMase ... When one Mg2+ ion or two Co2+ ions bind to the active site, double hexa-coordinated geometry results with two octahedral bi-pyramids for Co2+ and one octahedral bi-pyramid for Mg2+ ...
Health Effects Of Wine - Heavy Metals in Wine Controversy
... red wine to contain high levels of toxic metals relative to other beverages in the sample ... Although the metal ions, which included chromium, copper, iron, manganese, nickel, vanadium and zinc, were also present in other plant-based beverages, the sample wine tested ... The researchers stressed that a single glass of wine would not lead to metal poisoning, pointing out that their THQ calculations were based on the average person drinking one-thir ...

Famous quotes containing the word metal:

    And, indeed, is there not something holy about a great kitchen?... The scoured gleam of row upon row of metal vessels dangling from hooks or reposing on their shelves till needed with the air of so many chalices waiting for the celebration of the sacrament of food. And the range like an altar, yes, before which my mother bowed in perpetual homage, a fringe of sweat upon her upper lip and the fire glowing in her cheeks.
    Angela Carter (1940–1992)