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Merck

Cobalt: its role in health and disease.

Metal ions in life sciences (2014-01-29)
Kazuhiro Yamada
ABSTRACT

The primarily function of cobalt in humans is based on its role in cobalamin (Cbl, vitamin B12). Therefore, this chapter will focus on the physiological roles of Cbl and the importance of cobalt in human health. Cbl acts as the cofactor for two enzymes, i.e., methylmalonyl-CoA mutase and methionine synthase, in humans. Both enzymes are important for health. In addition, unlike other water-soluble vitamins, there is a unique absorption, delivery, and activation system for Cbl in mammals. Therefore, this chapter will also review the literature on the Cbl transporting system, which is crucial for Cbl function.

MATERIALI
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Marchio
Descrizione del prodotto

Sigma-Aldrich
Cobalt, powder, 2 μm particle size, 99.8% trace metals basis
Sigma-Aldrich
Cobalt, powder, <150 μm, ≥99.9% trace metals basis
Sigma-Aldrich
Cobalt, granular, 99.99% trace metals basis
Sigma-Aldrich
Cobalt, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%
Sigma-Aldrich
Cobalt, wire, diam. 1.0 mm, 99.995% trace metals basis
Sigma-Aldrich
Cobalt, pieces, 99.5% trace metals basis
Sigma-Aldrich
Cobalt, foil, thickness 0.1 mm, 99.95% trace metals basis
Sigma-Aldrich
Cobalt, rod, diam. 5.0 mm, 99.95% trace metals basis
Cobalt, foil, 100x100mm, thickness 2.0mm, as rolled, 99.9%
Sigma-Aldrich
Cobalt, foil, thickness 1.0 mm, 99.95% trace metals basis
Cobalt, foil, 100x100mm, thickness 1.0mm, as rolled, 99.9%
Cobalt, foil, 100x100mm, thickness 0.25mm, as rolled, 99.9%
Sigma-Aldrich
Cobalt, foil, thickness 0.1 mm, ≥99.99%
Cobalt, wire reel, 0.5m, diameter 0.05mm, hard, 99.9%
Cobalt, foil, 25x25mm, thickness 1.0mm, as rolled, 99.9%
Cobalt, wire reel, 0.1m, diameter 0.5mm, hard, 99.99+%
Cobalt, wire reel, 0.1m, diameter 0.05mm, hard, 99.9%
Cobalt, foil, not light tested, 150x150mm, thickness 0.025mm, 99.9%
Cobalt, wire reel, 0.05m, diameter 0.5mm, hard, 99.99+%
Cobalt, microfoil, disks, 10mm, thinness 0.5μm, specific density 434μg/cm2, permanent mylar 3.5μm support, 99.9%
Cobalt, foil, 10mm disks, thickness 0.015mm, 99.9%
Cobalt, foil, 6mm disks, thickness 0.008mm, 99.9%
Cobalt, foil, 8mm disks, thickness 0.006mm, 99.9%
Cobalt, foil, 8mm disks, thickness 0.009mm, 99.9%
Cobalt, foil, 8mm disks, thickness 0.01mm, 99.9%
Cobalt, foil, light tested, 25x25mm, thickness 0.025mm, 99.9%
Cobalt, foil, 100x100mm, thickness 0.5mm, as rolled, 99.99+%
Cobalt, foil, 50x50mm, thickness 0.7mm, annealed, 99.9%
Cobalt, wire reel, 0.05m, diameter 0.25mm, hard, 99.99+%
Cobalt, foil, 4mm disks, thickness 0.005mm, 99.9%