in this scientific research, magnesium oxide (mgo) nanoparticles were synthesized from magnesium nitrate and ammonium solutions via microwave@sol-gel process. the structure and the morphology of the synthesized nanoparticles has been identified and characterized by x-ray diffraction (xrd), n2-bet (brunauer-emmett-tell), scanning electron microscopy (sem) and fourier transform infrared (ftir) te...

The sol-gel synthesis process is a versatile method used to produce wide diversity of materials and being increasingly as surface modification alter porosity, wettability, catalytic activity, biocompatibility corrosion performance underlying substrates. Silane sol–gel films deposited on aluminium alloys have been widely studied chemical conversion coatings coupling agent between the substrate o...

This review reports the implementation of novel nanostructured functional coatings by using different surface engineering techniques based on wet chemistry. In the first section, the theoretical fundaments of three techniques such as sol-gel process, layer-by-layer (LbL) assembly and electrospinning will be briefly described. In the second section, selected applications in different potential f...

The mechanisms responsible for spontaneous silver precipitation in silver-doped sol-gel materials are identified. The chemistry of the solvent phase is found to be the critical factor in controlling this phenomenon. The addition of HCl as catalyst leads to the formation of AgCl and subsequent formation of silver upon light exposure. Another factor leading to silver precipitation is the reducing...

Isoelectric focusing of proteins is now well established as a powerful tool in protein chemistry following its introduction a few years ago (1, 2). Unfortunately, this new technique has not yet found practical day to day use in the·, clinical laboratory. This communication describes a reproducible and easy method for gel isoelectric focusing (3, 4, 5)! It also contains the preliminary' results ...

By definition, transdermal, drug-delivery applications mandate the use of adequate adhesive systems to not only keep the pharmaceutical agent in contact with the intended surface, but to facilitate sustained, controlled delivery. Engineers who must determine which silicone chemistry is optimal for their device have a few options. While pressuresensitive silicone adhesives (PSAs) have typically ...

The mechanisms responsible for spontaneous silver precipitation in silver-doped sol-gel materials are identified. The chemistry of the solvent phase is found to be the critical factor in controlling this phenomenon. The addition of HCl as catalyst leads to the formation of AgCl and subsequent formation of silver upon light exposure. Another factor leading to silver precipitation is the reducing...

Using reduced graphene oxide (rGO) as a template and high temperature sol-gel chemistry, we have prepared LaFeO3 nanoparticles (NPs). The 15 nm LaFeO3 NPs have a bandgap of 1.86 eV and the LaFeO3-rGO can function as an efficient catalyst for degradation of methylene blue (MB) or Rhodamine B (RhB) under visible-light irradiation with the electron transfer from the dye to hole dominating the oxid...

However, the co-existence of metallic and semiconducting tubes in as-synthesized SWNT samples has been a bottleneck for fundamental research and fabrication of electronic and optoelectronic devices. [ 6 ] It is desirable to develop effective purifi cation methods by which SWNT samples enriched in semiconducting species may be prepared. Various methods to sort semiconducting from metallic nanotu...