National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 

Warning: Requested record does not seem to exist.
Formulation and processing of pharmaceutical nanosuspensions
Lehocký, Róbert ; Štěpánek, František (advisor) ; Šklubalová, Zdeňka (referee) ; Rajniak, Pavol (referee)
The pharmaceutical industry has been bringing an increasing number of innovative active ingredients from BCS Groups II and IV to the market in recent decades. Among other things, these substances are characterized by very low solubility in water. In order for these sparingly soluble substances to be used effectively in the treatment of patients, it is necessary to increase their solubility and thus induce a sufficient plasma concentration. One way to solve this problem is to adjust the crystal size of the drug substance to the level of micro- and nanoparticles. Thanks to particle size adjustment, it is possible to adjust the specific surface and thus control the solubility and overall dissolution profile of the drug. The thesis is divided into three parts. The first part deals with the effective preparation of a nanosuspension of sparingly soluble prodrug by means of nanomilling and subsequent transfer and scale-up from a batch to a flow-through bead mill by a novel method based on the effective number of passes. The second part concentrates on the description of an adverse but interesting effect - the occurrence of the so called Pickering foam, which is formed during the grinding process in a flow-through bead mill. The work explains the mechanism of Pickering foam formation and suggests a way to...

Interested in being notified about new results for this query?
Subscribe to the RSS feed.