Anionic B complexes have been known and extensively studied as intermediates of nucleophilic aromatic substitution since the beginning of the century.l In a paper that still makes fascinating reading, Meisenheimer describes the formation and isolation of anionic B complexes by reaction of picryl ethers with potassium alkoxides. Structural proof is derived from the fact'that identical u complexe...

Nanosized titanium dioxide (TiO2) in its anatase form is the most frequently studied and as well as used photocatalyst. There are several syntheses procedures which enable to achieve photocatalytic TiO2. The solgel method utilizing titanium alkoxides is used most often. Alternative precursors such as titanium tetrachloride and titanyl sulphate are also frequently employed. Nowadays the environm...

A hybrid nanolaminates consisting of Al2O3/ZrO2/alucone (aluminum alkoxides with carbon-containing backbones) grown by atomic layer deposition (ALD) were reported for an encapsulation of organic light-emitting diodes (OLEDs). The electrical Ca test in this study was designed to measure the water vapor transmission rate (WVTR) of nanolaminates. We found that moisture barrier performance was impr...

The surface modification of textile fabrics and therefore, the development advanced materials featuring specific implemented new properties, such as improved durability resistance, is increasingly in demand from modern society end-users. In this regard, sol–gel technique has shown to be an innovative convenient synthetic route for developing functional coatings useful protection materials. Comp...

conclusions diclofenac-loaded nanoparticles based on properties of chitosan gelation could delay the release of drugs in the stomach and be further evaluated for the enteric delivery of diclofenac. objectives the aim of this study was to prepare and evaluate diclofenac-loaded chitosan nanoparticles based on the ionotropic gelation method. materials and methods chitosan (cs) nanoparticles contai...