The atomic structure of a series sodium iron phosphate glasses is studied using different experimental techniques: X-ray and neutron diffraction (ND), infrared spectroscopy, extended absorption fine (EXAFS), near-edge (XANES). Detailed information about the pair correlations obtained. high resolution ND in real space resolves two P–O distances at 1.48 ? 1.59 as expected. All are found to consis...

To elucidate effect of chemical reagents addition on growth of aquatic plants in restoration of aquatic ecosystem, Spirodela polyrrhiza (L.) Schleid was used to evaluate its physiological responses to excess iron (Fe(3+)) and copper (Cu(2+)) in the study. Results showed that accumulation of iron and copper both reached maximum at 100 mg L(-1) iron or copper after 24 h short-term stress, but exc...

Erythropoiesis may be limited by absolute or functional iron deficiency or when chronic inflammatory conditions lead to iron sequestration. Intravenous iron may be indicated when oral iron cannot address the deficiency. Ferric carboxymaltose (FCM) is a nondextran iron preparation recently approved in the United States for intravenous treatment of iron deficiency anemia (IDA) in adult patients w...

In the complex salt [ -1-chloro-2-(pyrrolidin-1-yl)benzene]( -cyclopentadienyl)iron(II) hexafluoridophosphate, [Fe(C5H5)(C10H12ClN)]PF6, (I), the complexed cyclopentadienyl and benzene rings are almost parallel, with a dihedral angle between their planes of 2.3 (3) . In a related complex salt, ( -cyclopentadienyl){2-[ -2-(pyrrolidin-1-yl)phenyl]phenol}iron(II) hexafluoridophosphate, [Fe(C5H5)(C...

Lynda Cheddani, Thierry Leblanc, Caroline Silve, Nahid Tabibzadeh, Dominique Prié, Jean-Philippe Haymann, Marie-Noëlle Péraldi, Michel Daudon, Paul Meria and Emmanuel Letavernier Sorbonne Université UPMC Paris 06, UMR S 1155, Paris, France; INSERM, UMR S 1155, Paris, France; Explorations Fonctionnelles Multidisciplinaires, AP-HP, Hôpital Tenon, Paris, France; Service d’Hématologie, AP-HP, Hôpit...

Preliminary evidence suggested that phosphate or borate destabilize iron. ovotransferrin nitrilotriacetate complexes in the absence of added bicarbonate. The iron. ovotransferrin.EDTA complex was prepared in the absence of bicarbonate, and a number of anions, including phosphate, sulfate, and citrate, were found to perturb the visible absorbance (A,,,,, = 490 nm) of this complex. Other anions, ...

Iron absorption was measured from five kinds of bread made from various types of flour and fermented in different ways in order to obtain a wide variation in the content of fiber, phytate (inositol hexaphosphate) and its degradation products, inorganic phosphate and inositol phosphates with fewer numbers of phosphate groups (inositol pentaphosphate through monophosphate). Each experiment had 9-...

A new iron phosphate, calcium triiron(III) tris-(phosphate) oxide, CaFe(3)(PO(4))(3)O, has been isolated and shown to exhibit a three-dimensional structure built by FeO(6) octa-hedra, FeO(5) trigonal bipyramids and PO(4) tetra-hedra. The FeO(x) (x = 5, 6) polyhedra are linked through common corners and edges, forming [Fe(6)O(28)](∞) chains with branches running along [010]. Adjacent chains are ...

A new iron phosphate, sodium barium diiron tris-(phosphate), NaBaFe(2)(PO(4))(3), has been synthesized by the flux method and shown to exhibit the well known langbeinite type structure. The Na, Ba and Fe atoms all lie on threefold axes, while the P and O atoms occupy general positions, one of the O atoms being disordered over two positions, with site occupancy factors of ca 0.7 and 0.3. The [Fe...