Melatonin is a hormone used for treating several disorders. However, its oral administration problematic due to the variable absorption and extensive first-pass metabolism. The topical application of this drug does not present these disadvantages can be therapeutic skin protection purposes. adsorption release melatonin in montmorillonite clay were investigated experimentally theoretically. drug...

styrene nanocomposites were synthesized by in-situ atom transfer radical polymerization at 110oc. the variations of monomer conversion and the linearity of semilogarithmic kinetic plot, some signs of living polymerizationand constant radical concentration in the reaction medium, were revealed by gas chromatography technique (gc). according to the gel permeation chromatography (gpc) results, the...

Nanoclays are widespread materials characterized by a layered structure in the nano-scale range. They have multiple applications diverse scientific and industrial areas, mainly due to their swelling capacity, cation exchange plasticity. Due nanoclays can serve as host matrices for stabilization of several molecules and, thus, they be used sensors incorporating electroactive ions, biomolecules e...

Maleic anhydride-modified polypropylene was compounded with commercially available surface-modified montmorillonite in a twin-screw extruder. Recompounding ensured the removal of visible tactoids from the extrudate but TEM and XRD techniques showed nonuniform dispersion of clay platelets. In this study, we investigated the mechanical and fracture properties of nanoclayfilled polypropylene. Emph...

Abstract Three-dimensional (3D) extrusion printing of cellular/acellular structures with biocompatible materials has been widely investigated in recent years. However, the requirement a suitable solidification rate printable ink constrains utilization extrusion-based 3D techniques. In this study, nanoclay yield-stress suspension-enabled system and demonstrated to overcome constraints during pri...

Since the last decade, research activities in the area of nano-materials have been increased dramatically. More than a 1000 of journal articles in this area have been published within the last 3 years. Materials scientists and researchers have realized that the mechanical properties of materials can be altered at the fundamental level, i.e. the atomic-scale. Carbon nanotubes (hereafter called ‘...