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Dupont Pharma
In-Depth Understanding of Granule Compression Behavior under Variable Raw Material and Processing…
Tablet manufacturing involves the processing of raw materials through several unit operations. Thus, the mitigation of input-induced variability should also consider the downstream processability of intermediary products. The objective of the present work was to study the effect of variable raw…
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In-depth analysis of the long-term processability of materials during continuous feeding
This study determined the feasibility of long-term continuous powder feeding and its effect on the overall process performance. Additionally, quantitative relationships were established between material properties, process settings and screw feeding responses during gravimetric feeding. Twelve…
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100% visual inspection of tablets produced with continuous direct compression and coating
Visual appearance of tablets is an important property for patients. Since the visual appearance is most strongly influenced by the applied coating, this necessitates a high level of process control and homogeneity in the coating process. In recent years, a number of tablet coaters have been…
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Development and evaluation of nano-formulations for immediate release oral dosage forms of poorly…
Inaugural-Dissertation to obtain the academic degree Doctor rerum naturalium (Dr. rer. nat.) submitted to the Department of Biology, Chemistry, Pharmacy of Freie Universität Berlin by Zun Huang
Solubility and dissolution rate are essential for the oral absorption and thus bioavailability of…
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Exploration of Neusilin® US2 as an Acceptable Filler in HPMC Matrix Systems—Comparison of…
Modern pharmaceutical technology still seeks new excipients and investigates the further use in already known ones. An example is magnesium aluminometasilicate Neusilin® US2 (NEU), a commonly used inert filler with unique properties that are usable in various pharmaceutical fields of interest. We…
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Comparison of Hydroxypropylcellulose and Hot-Melt Extrudable Hypromellose in Twin-Screw Melt…
High-molecular-weight hypromellose (HPMC) and hydroxypropyl cellulose (HPC) are widely known, extended-release polymers. Conventional high-molecular-weight HPMCs are preferred in extended-release applications but not widely used in twin-screw melt granulation due to processability difficulties at…
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Impact of blend properties and process variables on the blending performance
In this study, quantitative relationships were established between blend properties, process settings and blending responses via multivariate data-analysis. Four divergent binary blends were composed in three different ratios and processed at various throughputs and impeller speeds. Additionally,…
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Continuous direct compression: Development of an empirical predictive model and challenges regarding…
In this study, an empirical predictive model was developed based on the quantitative relationships between blend properties, critical quality attributes (CQA) and critical process parameters (CPP) related to blending and tableting. The blend uniformity and API concentration in the tablets were used…
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3D-Printed Coating of Extended-Release Matrix Tablets Effective Tool for Prevention of…
Tablets used for extended drug release commonly contain large amounts of drugs. The corresponding drug release mechanism thus has to be well-known and invariable under numerous conditions in order to prevent any uncontrolled drug release. Particularly important is the stability and invariability of…
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Towards a Better Understanding of Verapamil Release from Kollicoat SR:IR Coated Pellets Using…
The aim of this study was to gain deeper insight into the mass transport mechanisms controlling drug release from polymer-coated pellets using non-invasive analytical tools. Pellet starter cores loaded with verapamil HCl (10% loading, 45% lactose, 45% microcrystalline cellulose) were prepared by…
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