FeIII(μ-OH)ZnII Complex that Mimics the Structural and Functional Properties of Purple Acid Phosphatases Ademir Neves,*,† Mauricio Lanznaster,† Adailton J. Bortoluzzi,† Rosely A. Peralta,† Annelise Casellato,†,§ Eduardo Ernesto Castellano,‡ Paul Herrald,§ Mark J. Riley,§ and Gerhard Schenk§ LABINC, Departamento de Quı́mica, UniVersidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Bra...

We present a straightforward and generally applicable synthesis route for cofacially linked homo- heterobimetallic porphyrin complexes. The protocol allows the of unsymmetrical aryl-based meso-meso as well β-meso-linked porphyrins. Our method significantly increases overall yield published compound known o-phenylene-bisporphyrin (OBBP) by factor 6.8. Besides 16 novel homobimetallic complexes co...

FeIII-containing aluminosilicate zeolites are present in cement-relevant and natural environments. Although FeIII is known to occur framework tetrahedral sites where it substitutes isomorphically AlIIIO4 or extra-framework octahedral as free Fe(H2O)63+, the structural incorporation process of into different little known. We aim discern feasible pathways using hydrothermal synthesis methods sync...

OBJECTIVE We investigated whether red cell infiltration of atheromatous lesions promotes the later stages of atherosclerosis. METHODS AND RESULTS We find that oxidation of ferro (FeII) hemoglobin in ruptured advanced lesions occurs generating ferri (FeIII) hemoglobin and via more extensive oxidation ferrylhemoglobin (FeIII/FeIV=O). The protein oxidation marker dityrosine accumulates in compli...

The first FeIII atom in the solvated title compound, [Fe2Cl4O(C26H28N4)]·CHCl3, adopts a distorted six-coordinate octa-hedral geometry. It is coordinated by one chloride ligand, four N atoms from the (1R,2R)-N,N'-bis-[(quinolin-2-yl)methyl]cyclo-hexane-1,2-di-amine ligand, and a bridging oxido ligand attached to the second FeIII atom, which is also bonded to three chloride ions. A very weak int...

We have synthesized and characterized a new class of heme-peptide complexes using disulfide-linked hairpin-turn and cyclic peptides and compared these to their linear analogues. The binding affinities, helicities, and mechanism of binding of linear, hairpin, and cyclic peptides to [FeIII(coproporphyrin-I)]+ have been determined. In a minimalist approach, we utilize amphiphilic peptide sequences...

In this paper we report the first complete mapping of the pituitary in a tuna species. The various different adenohypophysis cell types of the bluefin tuna, Thunnus thynnus L. have been identified and located using different antisera against mammalian and piscine hormones and various histochemical techniques: PAS, Alcian Blue pH 2.5 and lectins -ConA and WGA(Neutral and Acidic Glycoproteins); B...

The crystal structures of the new isomorphous compounds iron(III) oxyfluorotellurate(IV), FeTeO(3)F, gallium(III) oxyfluorotellurate(IV), GaTeO(3)F, and chromium(III) oxyfluorotellurate(IV), CrTeO(3)F, consist of zigzag chains of MO(4)F(2) distorted octahedra alternately sharing O-O and F-F edges and connected via TeO(3) trigonal pyramids. A full O/F anionic ordering is observed and the electro...

ABSTRACT. The mechanical attachment method was used to modify the glass carbon electrode (GCE) with polyaniline nanoparticles (PANI NPs) produce a new nanosensor (PAN NPs/GCE). Electrochemical properties studied by nano working using cyclic voltammetric (CV) technique develop oxidation – reduction reaction. K4[Fe(CN)6] solution is one of standard solutions for CV titration redox peak current Fe...