29. September 2018
In this study, corn starch and ibuprofen are treated in Argon (Ar) plasma to enhance the wettability of the powders without using any additive or guest particle. The powder and pellets were exposed to the Ar plasma for different time intervals (5–20 min) at optimized pressure and voltage. While the morphological changes due to plasma exposure are captured by SEM, the AFM measurement shows the variations in surface roughness for both corn starch and ibuprofen powders. The XPS and surface...
07. October 2017
Burst drug release is often considered a negative phenomenon resulting in unexpected toxicity or tissue irritation. Optimal release of a highly soluble active pharmaceutical ingredient (API) from hypromellose (HPMC) matrices is technologically impossible; therefore, a combination of polymers is required for burst effect reduction. Promising variant could be seen in combination of HPMC and insoluble Eudragits® as water dispersions. These can be applied only on API/insoluble filler mixture as...
11. January 2017
Abstract Tioconazole-loaded nanocapsule suspensions and its coating with a cationic polymer were developed for nail drug delivery. The colloidal systems presented a nanometric size around 155 nm for uncoated nanoparticles and 162 nm for those with the cationic coating, with negative and positive zeta potential values, respectively. Both nanosuspensions showed drug content close to theoretical values (1 mg mL− 1), association efficiency close to 100% (HPLC) and were able to control tioconazol...
02. November 2015
Particle size and shape are well known to play important roles in particle formation and processing as they influence the intermediate and final products directly. Their effects are especially important in the manufacturing of mini tablets 2-3 mm in diameter. More
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