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Iron is a mineral essential for red blood cell formation and function; healthy muscle, connective tissue and brain development; cellular metabolism; and the synthesis of hormones. It is found naturally in foods and added to some food products, and is available as a dietary supplement.
In humans, most of the 3 to 4 grams of elemental iron are in hemoglobin, the protein that transports oxygen from the lungs to tissues, and myoglobin, another protein that transfers energy to the muscles. Other metabolites of iron include transferrin and hemosiderin, which are important in the transportation of blood throughout the body.
Fe – 57 (57Fe) is a radioactive isotope of iron that is produced in nuclear reactors by neutron capture from the parent isotope, iron-56. This process is safe, efficient and cost-effective, making it a popular choice for a variety of research applications.
57Fe is a good candidate for Mossbauer spectroscopy because it exhibits the recoilless gamma ray emission and adsorption characteristic of the so-called “Mossbauer Effect,” which is a spectroscopic technique used to study chemical, structural, magnetic and time-dependent properties of materials. The isotope’s low natural energy variation and long-lived excited states make it well suited to this spectroscopic method.
Using the isotope 57Fe in Mossbauer spectroscopy allows researchers to study the chemistry and structure of materials at a nanoscale level and provides precise information about their magnetic, mechanical and time-dependent properties. This method can be used to study many aspects of science, including physics, chemistry, biology and metallurgy.