Optical Properties and Antimicrobial Activity of Si/PVP Hybrid Material Combined with Antibiotics.

Silica-poly (vinylpyrrolidone) hybrid material was prepared using the sol-gel method. Tetramethyl ortosilane (TMOS) was used as a silica precursor. XRD analysis established that the as-prepared material is amorphous.

Sol-Gel Synthesis of Silica-Poly (Vinylpyrrolidone) Hybrids with Prooxidant Activity and Antibacterial Properties.

The present work deals with the sol-gel synthesis of silica-poly (vinylpyrrolidone) hybrid materials. The nanohybrids (Si-PVP) have been prepared using an acidic catalyst at ambient temperature. Tetramethyl ortosilane (TMOS) was used as a silica precursor.

The Solvent Role for the Decomposition of Paracetamol in Distilled and Drinking Water by Pure and Ag-Modified TiO Sol-Gel Powders.

In this study, pure TiO gels were synthesized by applying the sol-gel method, using Ti(IV) butoxide with the addition of two different solvents, namely ethylene glycol (EG) and isopropanol (isop), with only air moisture present. It was established using XRD that the gel prepared with the addition of EG was amorphous even at 400 °C, while the other gel was amorphous up to 300 °C. It was found that TiO (anatase) had a dominant crystalline phase during heating to 600 °C, while at 700 °C, TiO (rutile) appeared.

Effect of BO on the Structure, Properties and Antibacterial Abilities of Sol-Gel-Derived TiO/TeO/BO Powders.

This paper studies the influence of BO on the structure, properties and antibacterial abilities of sol-gel-derived TiO/TeO/BO powders. Titanium(IV) butoxide, telluric(VI) acid and boric acid were used as precursors. Differences were observed in the degree of decomposition of Ti butoxide in the presence of HBO and HTeO acids.

The Influence of Nd and Sm on the Structure and Properties of Sol-Gel-Derived TiO Powders.

TiO nanopowders modified by Nd and Sm were prepared using the sol-gel technique. It was found by XRD analysis that the samples containing Sm are amorphous up to 300 °C, while those with Nd preserve a mixed organic-inorganic amorphous structure at higher temperatures (400 °C). The TiO (rutile) was not detected up to 700 °C in the presence of both modified oxides.