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strontium (Sr), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is used as an ingredient in red signal flares and phosphors and is the principal health hazard in radioactive fallout.
The strontium is processed like calcium by the body, preferentially incorporating it into bone at sites of increased osteogenesis. This localization focuses the radiation exposure on the cancerous lesion.
25 lut 2022 · Strontium (Sr) is a trace element taken with nutrition and found in bone in close connection to native hydroxyapatite. Sr is involved in a dual mechanism of coupling the stimulation of bone formation with the inhibition of bone resorption, as reported in the literature.
1 wrz 2004 · Abstract. This review summarises old and more recent literature on the biological role of the bone-seeking trace metal strontium (Sr). It covers areas of chemistry, nutrition, toxicity, transport across biological membranes, homeostasis, general physiology, calcium–strontium interactions, and particularly the role of strontium in bone.
In the field of metallurgy, strontium is used as an alloying agent with aluminum to refine the grain structure of the cast metal. This enhances the mechanical properties of the alloy, like tensile strength and ductility, thereby increasing its suitability for various structural applications.
1 wrz 2004 · It covers areas of chemistry, nutrition, toxicity, transport across biological membranes, homeostasis, general physiology, calcium–strontium interactions, and particularly the role of strontium in bone.
Element Strontium (Sr), Group 2, Atomic Number 38, s-block, Mass 87.62. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
