Mercury(II) metallation of Pseudomonas aeruginosa azurin has been characterized structurally and biochemically. The X-ray crystal structure at 1.5 Å of mercury(II) metallated azurin confirms the coordination of mercury at the copper binding active site and a second surface site. These findings a...

Multiple biophysical methods demonstrate that silver effectively metallates Pseudomonas aeruginosa apo-azurin in solution. X-ray crystallography of the silver-modified protein reveals that silver binds to azurin at the traditional copper mediated active site with nearly identical geometry. Cycli...

Azurin is bacterial protein, which was been reported to promote cancer cell death in vitro. The interaction of azurin and p53 is important for the cytotoxic effect of azurin towards cancer cells. In this study, it was found that nucleic acids mediated the interaction of azurin and the C-terminal...

A model system for the electrochemical investigation of vectorial electron transfer in biological systems was designed, assembled and characterized. Gold electrodes, functionalized with a -OCH3 terminated, aromatic self-assembled monolayer, were used as a substrate for the adsorption of variants...

Immobilization of proteins with controlled electron transfer properties is an important task for future biomedical applications. In this work, immobilization of azurin on gold electrodes modified with 6-mercaptohexanol (MCH), and 11-mercaptoundecanol (MUD) self-assembled monolayers (SAMs) was st...

The redox active metalloprotein Cu-azurin was directly chemisorbed on bare gold electrodes through disulfide forming groups (Cys3Cys26). Topological and electrochemical properties of the immobilized molecules were investigated by electrochemical atomic force microscopy (EC-AFM) in Peak Force Tap...

Literature from the first half of this century report concern for toxicity from topical use of boric acid, but assessment of percutaneous absorption has been impaired by lack of analytical sensitivity. Analytical methods in this study included inductively coupled plasma-mass spectrometry which n...

Polycrystalline powder samples of dysprosium doped Zn(BO2)2 phosphors were prepared by solid state reaction in air at high temperature and characterized by X-ray powder diffraction. The IR, Photoluminescence (PL), diffuse reflectance and three-dimensional (3D) thermoluminescence (TL) emission sp...

The structure of chlorobis(tricyclohexylphosphine) (sulfur dioxide)rhodium(I) has been determined by single crystal X-ray techniques. The complex crystallizes in the space group P21/c with cell constants of a = 13.371(6), b = 12.783(6), c = 23.293(10) Å and β = 105.01(2)°. Refinements using 28...

The secondary phosphite OCH2CMe2CH2OP(O)H reacts with chlorobis(cyclooctene) rhodium(I) dimer to give RhX(R2POHOPR2)2(R2POH) (X=H, Cl) and RhCl2(R2POHOPR2)(R2POH)2 where R2PO = OCH2CMe2CH2PO. The iridium analogue yields corresponding products. The phosphite reacts with bis-(cyclooctene) pentan-2...

Pt(dbbpy)(bdt) and Pt(tmphen)(bdt) (dbbpy = 4,4′-di-t-butyl-2,2′-bipyridine; tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline; bdt2− = 1,2-benzenedithiolate) are reported. Pt(dbbpy)(bdt) reacts with one equivalent of methyl iodide to give the S-methylated product, [Pt(dbbpy)(CH3bdt)]I. The rea...

A new non-linear optical inorganic–organic hybrid material [H3NCH2(C4H4NH)]ZnCl4 (3-ampH2)ZnCl4) has been synthesized and characterized by single-crystal X-ray diffraction, thermal analysis and UV–visible absorption. The compound crystallizes in the non-centrosymmetric orthorhombic space group...

The vanadate-sillenite Bi25VO40 nanoparticles were prepared through the facile Pechini method. The average size is about 70 nm. The sample was investigated by X-ray powder diffraction (XRD) and the structural refinement. The surface properties of the nanoparticles were investigated by the measur...

Three bismuth sillenite compounds with the general composition, Bi12XO20 (X = Si, Ge, Ti), were prepared by a conventional solid state synthesis route and their local crystal structure, light absorption and visible-light induced photocatalytic activities were systematically investigated. The pre...

We performed first principles density functional theory calculations of Bi12GeO20, Bi12SiO20, and Bi12TiO20 sillenites compounds, in order to determine its bonding and electronic structure. Ultra-soft pseudopotential method based on GGA was used in order to relax the ion positions. Augmented Pla...

Bi3+-containing semiconductors usually show rich optical and electronic properties due to the hybridization between 6s and 6p electronic components together with the lone pair in Bi3+ ions. In this work, an In3+-stabilized γ-Bi2O3 sillenite structure, Bi24InO37.5 (Bi12In0.5O18.75), was prepared...

Single-crystal sillenite-type Bi24(M2-xMn4+x)O40 (M = Al3+, Fe3+, Ge4+, Ti4+, Cr4+, V5+) solid solutions have been studied by a complex of methods: single crystal and powder X-ray diffraction; EXAFS/XANES, IR and Raman spectroscopies; scanning and transmission electron microscopies; electron pro...

Sillenite bismuth ferrite (S-BFO) Bi25FeO40 was synthesized by a hydrothermal process and firstly adopted for the activation of peroxymonosulfate (PMS). Multiple characterization was conducted for the morphology and physicochemical features of S-BFO. Degradation of aquatic levofloxacin (LVF) was...

Bismuth oxide based Bi12SiO20 dielectric ceramics were prepared via a solid state reaction process. The bismuth oxide of the ceramics was vaporized during the calcination and sintering process, and became non-stoichiometric Bi2O3 deficient sillenite compounds. Different amounts of Bi2O3 were add...

The silico-sillenite single crystals with various concentration of impurity iron ions have been studied. An effect of light on the charge state of iron ions has been found involving the transition of Fe3+ to Fe2+. The transition was recorded by means of ESR signal intensity measurement. The para...