The phrase "accessible iron" is correct and usable in written English.
It can be used to describe iron that is easy to obtain, use, or understand, often in contexts related to materials, resources, or information.
Example: "The new construction guidelines emphasize the use of accessible iron to ensure that all builders can source the materials they need without difficulty."
Alternatives: "readily available iron" or "easy-to-use iron".
It ended when more easily accessible iron deposits were discovered in Minnesota.
"Even though iron is abundant on earth, biologically accessible iron is not". Cells have developed molecules like enterobactin, he explained, which can scavenge iron from any available source, but they then need a tool — like Fes — to wrest the iron from the tight grip of the enterobactin.
This applies also to the size of the "readily accessible" iron pool in red blood cells (300 μg instead of the 568 μg calculated from the hemoglobin pool of the mouse, see Additional file 1: Table S9).
E. coli contains a small pool of intracellular free Fe3+, and superoxide increases levels of intracellular free iron primarily as the result of damage to iron sulfur clusters in fumarase, aconitase, and 6-phosphogluconate dehydratase, enzymes that have a solvent-accessible iron atom [48].
Such direct measurements may be contrasted with tracer-accessible iron pool sizes.
The second floor was accessible via cast iron stairs with iron railings, that lead up the customs quarters that had a large room with "seven sets of iron-framed windows, with heavy iron sills and interior shutters".
We assume that if the loop conformation of helix H5, as revealed in the F86YF87Y structure, was not restored into a helical structure at the appropriate time, the solvent-accessible di-iron center may become unstable.
The total tracer-accessible iron amounts to ~400 μg (Additional file 1: Table S10).
By using laser lines of 325 nm and 441 nm, the light absorption in the passive film on iron becomes accessible by measuring the difference in the reflectance of the electrode surface prior to and after passivation.
The cemetery perimeter is lined on three sides by a cast wrought iron fence, accessible by a gate 3 feet in width at its western entryway.
This structure demonstrates an iron-accessible site of the second cluster capable of ligating a sulfur moiety without creating steric hindrance for the binding of SAM to the radical SAM cluster in a typical geometric fashion observed with other radial SAMs.
