1D CoMoC-Based Heterojunctional Nanowires from Pyrolytically "Squeezing" PMo/ZIF-67 Cubes for Efficient Overall Water Electrolysis.

The bi-transition-metal interstitial compounds (BTMICs) are promising for water electrolysis. The previous BTMICs are usually composed of irregular particles. Here, this work shows the synthesis of novel 1D CoMoC-based heterojunction nanowires (1D Co/CoMoC) with diameters about 50 nm and a length-to-diameter ratio about 20 for efficient water electrolysis.

[Features of genetic mutations in children with high myopia combined with peripheral retinal degenerations].

Unlabelled: Degenerative changes in the peripheral regions of the ocular fundus allow a closer look at both the role of collagen genes and their mutations in children with high myopia.

Purpose: The study investigates the features of genetic mutations in children with high myopia combined with peripheral retinal degenerations.

Material And Methods: Study group was formed from the database of genetic studies of the Scientific and Clinical Center OOO Oftalmic, which consists of 4362 patients referred for medical genetic counseling and molecular genetic testing from 2016 to 2021.

In-Situ Al-Mg Alloy Base Composite Reinforced by Oxides and Intermetallic Compounds Resulted from Decomposition of ZrWO during Multipass Friction Stir Processing.

In the presented work, the effect of friction stir processing admixing the zirconium tungstate ZrWO powder on the microstructure, mechanical and tribological properties of the AA5056 Al-Mg alloy stir zone has been studied. The FSP resulted in obtaining dense composite stir zones where α-ZrWO underwent the following changes: (i) high-temperature transformation into metastable β'-ZrWO and (ii) decomposition into WO and ZrO oxides followed by the formation of intermetallic compounds WAl and ZrA. These precipitates served as reinforcing phases to improve mechanical and tribological characteristics of the obtained fine-grained composites.

Revisiting Sodium Hexafluoroiridates: Perspective Precursors for Electronic, Quantum, and Related Materials.

The following salts have been synthesized and structurally characterized: Na[IrF]·2HO (2/, = 6.6327(4), = 10.0740(6), = 5.

Insight into the thermal decomposition of ammonium hexahalogenoiridates(IV) and hexachloroiridate(III).

Thermal decomposition of (NH4)3[IrCl6]·H2O, (NH4)2[IrCl6] and (NH4)2[IrBr6] in reductive and inert atmospheres has been investigated in situ using quick-EXAFS and temperature-resolved powder X-ray diffraction. For the first time, (NH4)2[Ir(NH3)Cl5] and (NH4)2[Ir(NH3)Br5] have been proven as intermediates of thermal decomposition of (NH4)3[IrCl6]·H2O, (NH4)2[IrCl6] and (NH4)2[IrBr6]. Thermal degradation of (NH4)2[IrCl6] and (NH4)2[IrBr6] is a more complex process as suggested previously and includes simultaneous formation of (NH4)2[Ir(NH3)Cl5] and (NH4)2[Ir(NH3)Br5] intermediates mixed with metallic iridium.

Tetraammineplatinum(II) and Tetraamminepalladium(II) Chromates as Precursors of Metal Oxide Catalysts.

[M(NH ) ]A (M=Pt, Pd; A=CrO , Cr O ) and [Pt(NH ) (NO )(Cr O )]NO complex salts were synthesized and characterized by a number of physicochemical methods of analysis (IR, single-crystal and powder XRD, and simultaneous thermogravimetry and differential scanning calorimetry with evolved gas analysis mass spectrometry). Thermolysis of the salts obtained in a hydrogen atmosphere proceeds with the partial reduction of chromium to a metallic state and the formation of M Cr (M=Pt, Pd) metal solid solution with a chromium content of up to 22 at % and chromium(III) oxide. The thermal decomposition of salts in an inert and oxidizing atmosphere passes through the formation stage of the MCrO phase with the delafossite structure followed by its subsequent decomposition into chromium(III) oxide and noble metal.

Preparation of Zr(Mo,W)O with a larger negative thermal expansion by controlling the thermal decomposition of Zr(Mo,W)(OH,Cl)∙2HO.

Solid solutions of Zr(Mo,W)O(OH,Cl)∙2HO with a preset ratio of components were prepared by a hydrothermal method. The chemical composition of the solutions was determined by energy dispersive X-ray spectroscopy (EDX). For all the samples of ZrMoWO(OH,Cl)∙2HO (x = 0.

Dynamics of time-resolved photoluminescence in GaInNAs and GaNAsSb solar cells.

Unlabelled: We report a time-resolved photoluminescence study for GaInNAs and GaNAsSb p-i-n bulk solar cells grown on GaAs(100). In particular, we studied the extent to which the carrier lifetime decreases with the increase of N content. Rapid thermal annealing proved to significantly increase the decay times by a factor of 10 to 12 times, for both GaInNAs and GaNAsSb heterostructures, while for the 1-eV bandgap GaNAsSb structure, grown at the same growth conditions as the GaInNAs, the photoluminescence decay time remained slightly below 100 ps after annealing; the approximately 1.

Magnetofection of human somatic cells with magnetite and cobalt ferrospinel nanoparticles.

Superparamagnetic nanoparticles varying by their chemical composition and synthesis method were used to transfer DNA into somatic cells under the influence of constant magnetic field (method of magnetofection). Magnetite particles obtained by mechanochemical synthesis ensured higher expression of the marker gene GFP (evaluated by fluorescence intensity of the cell lysate) then particles of ferric oxide obtained by chemical co-precipitation and cobalt ferrospinel particles obtained by the mechanochemical method.

Three hexafluoridoiridates(IV), Ca[IrF6].2H2O, Sr[IrF6].2H2O and Ba[IrF6].

The structures of the hexafluoridoiridates(IV) of calcium, Ca[IrF(6)].2H(2)O [calcium hexafluoridoiridate(IV) dihydrate], strontium, Sr[IrF(6)].2H(2)O [strontium hexafluoridoiridate(IV) dihydrate], and barium, Ba[IrF(6)] [barium hexafluoridoiridate(IV)], have been determined by single-crystal X-ray analysis.

Double complexes [Co(NH(3))(5)(H(2)O)](2)[Zr(3)F(18)].6H(2)O and [Co(NH(3))(6)](2)[Zr(3)F(18)].6H(2)O.

The structures of orthorhombic bis[pentaammineaquacobalt(III)] tetra-mu(2)-fluorido-tetradecafluoridotrizirconium(IV) hexahydrate (space group Ibam), [Co(NH(3))(5)(H(2)O)](2)[Zr(3)F(18)].6H(2)O, (I), and bis[hexaamminecobalt(III)] tetra-mu(2)-fluorido-tetradecafluoridotrizirconium(IV) hexahydrate (space group Pnna), [Co(NH(3))(6)](2)[Zr(3)F(18)].6H(2)O, (II), consist of complex [Co(NH(3))(x)(H(2)O)(y)](3+) cations with either m [in (I)] or overline{1} and 2 [in (II)] symmetry, [Zr(3)F(18)](6-) anionic chains located on sites with 222 [in (I)] or 2 [in (II)] symmetry, and water molecules.

Malaria rapid diagnostic devices: performance characteristics of the ParaSight F device determined in a multisite field study.

Microscopic detection of parasites has been the reference standard for malaria diagnosis for decades. However, difficulty in maintaining required technical skills and infrastructure has spurred the development of several nonmicroscopic malaria rapid diagnostic devices based on the detection of malaria parasite antigen in whole blood. The ParaSight F test is one such device.

Comparison of IsoCode STIX and FTA Gene Guard collection matrices as whole-blood storage and processing devices for diagnosis of malaria by PCR.

We compared two collection devices, IsoCode and FTA, with whole blood for the diagnosis of malaria by PCR (n = 100). Using whole blood as the reference standard, both devices were sensitive for the detection of single-species malaria infections by PCR (> or =96%). However, the detection of mixed infections was suboptimal (IsoCode was 42% sensitive, and FTA was 63% sensitive).

[Glutathione S-transferase P1-1 in normal and cancerous lung tissue: properties, function, and possible mechanisms for regulating activity].

Different forms of one of the enzymes catalyzing the xenobiotic metabolism, glutathione S-transferase P1-1 (GST P1-1), purified from normal and tumoral lung tissues, are described. Statistically significant (p < 0.05) increasing of enzyme activity in tumour, as compared with normal tissue, is shown.