A contribution to the crystal chemistry and topology of organic thiosulfates: bis(1-methylpiperazinium)·SO·HO versus 1-methylpiperazinediium·SO·3HO.

Single crystals of two new compounds, (CHN)SO·HO (1) and (CHN)SO·3HO (2), were isolated from the reaction products of 1-methylpiperazine, sulfuric acid, and barium thiosulfate in aqueous media. The crystal structures have been determined by single-crystal X-ray diffraction. In agreement to the previous observations, the organic template may contribute to the formation of thiosulfates both as mono- and diprotonated species, but this is the first case where both products are reported for the same organic compound.

The (CNH)[Cu(HO)]() Structural Family: When Fluoroberyllate, Sulfate, and Selenate Are Full Analogs.

Two new organo-inorganic hybrids, (CNH)[Cu(HO)](BeF) () and (CNH)[Cu(HO)](SeO) (), were prepared via the interaction of ethylenediamine, copper fluoroberyllate or selenate, and H[BeF]/HSeO in aqueous solutions. The structures of and are similar to each other and the previously reported (CNH)[Cu(HO)](SO): monoclinic, 2/, = 5.1044(2) Å, = 11.

Oxidative stress-modifying effects of TiOnanoparticles with varying content of Ti(Ti) ions.

Nanoparticles (NPs) with reactive oxygen species (ROS)-regulating ability have recently attracted great attention as promising agents for nanomedicine. In the present study, we have analyzed the effects of TiOdefect structure related to the presence of stoichiometric (Ti) and non-stoichiometric (Tiand Ti) titanium ions in the crystal lattice and TiONPs aggregation ability on HO- and tert-butyl hydroperoxide (tBOOH)-induced ROS production in L929 cells. Synthesized TiO-A, TiO-B, and TiO-C NPs with varying Ti(Ti) content were characterized by x-ray powder diffraction, transmission electron microscopy, small-angle x-ray scattering, x-ray photoelectron spectroscopy, and optical spectroscopy methods.

Interaction of Ceramic Implant Materials with Immune System.

The immuno-compatibility of implant materials is a key issue for both initial and long-term implant integration. Ceramic implants have several advantages that make them highly promising for long-term medical solutions. These beneficial characteristics include such things as the material availability, possibility to manufacture various shapes and surface structures, osteo-inductivity and osteo-conductivity, low level of corrosion and general biocompatibility.

Curing of DER-331 Epoxy Resin with Arylaminocyclotriphosphazenes Based on o-, m-, and p-methylanilines.

As a result of this research, it was established that the chlorine atom replacement rates in hexa-chlorocyclotriphosphazene by o-, m-, and p-methylanilines' temperatures are crucial in determining which reaction is made. The speed of reaction practically does not affect the polarity of the synthesis solvent. For the formation of fully substituted o-, m-, and p-arilaminocyclotriphosphazenes, the reaction takes 5 h and is carried out in the diglyme at its boiling temperature.