01. April 2016

Hydrogels of a natural polysaccharide composed of Gum Arabic (GA) are appropriate materials for drug delivery, since they are water soluble, nontoxic and biocompatible. In this work, the effect of methacrylation on the properties of GA as pH-responsive hydrogel has been evaluated. Modified Gum Arabic (M-GAx), with different degrees of substitution, has been obtained by using different percentages of glycidyl methacrylate (x). It was observed that playing with the x value, gels with different...

13. August 2015

Besides the known propolis biological activities, widely reported in many scientific studies, new findings in animal models have opened new fields for propolis application. Recently, there has been an increased interest in dried extracts based on natural products including propolis, as the product in the dry presentation shows several advantages. Therefore, standardizing a more soluble dry extract and allowing the production of human dosage forms are of great interest. In this context, this...