07. May 2018
The aim of this research was to design and evaluate a hydrophilic matrix system for sustained release of glipizide, a weakly acidic poor soluble drug. A combination of inclusion complexation and microenvironmental pH modification techniques was utilized to improve the dissolution and pH-independent release of glipizide. Hydroxypropyl-β-cyclodextrin (HP-β-CD) was used as the complexation agent while sodium citrate and magnesium oxide (MgO) were used as model pH modifiers. The hydrophilic...
26. January 2017
Abstract The interest of consumers and government organizations on improving the quality of food and its impact on human health is growing in recent years. Consuming low-calorie foodstuffs are increasingly demanded, and the presence of artificial sweeteners plays an important role not only in food but also in waste reaching the environment. Analysis of these compounds is important in assessing food safety and quality. This chapter reviews the analytical approaches for the extraction and...
27. July 2016
Development of new products and materials, especially those which are based on renewable organic resources using innovative sustainable processes, represents an increasing interest in both academic and industrial research. Cellulose and its derivatives have demonstrated to be versatile materials with unique chemical structure which provides a good platform for the construction of hydrogel networks with distinctive properties as respects of swelling ability and sensibility to external stimuli....
05. October 2015
Highlights •First formal environmental risk assessment for pharmaceutical excipients. •Based on material balances of single galenical productions at two sites. •PEC/PNEC risk ratios for wastewater treatment plants and the receiving water. •No risk identified for wastewater treatment or receiving water (River Rhine). More