D
Daniel M. Koller
Researcher at Graz University of Technology
Publications - 19
Citations - 410
Daniel M. Koller is an academic researcher from Graz University of Technology. The author has contributed to research in topics: Mixing (physics) & Coating. The author has an hindex of 9, co-authored 19 publications receiving 387 citations.
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Journal ArticleDOI
Non-destructive analysis of tablet coatings with optical coherence tomography.
TL;DR: High-speed spectral domain OCT was used for the characterization of pharmaceutical tablet coatings, sampled at different stages of an industrial drum spray coating process, comprising tablets with a coating thickness ranging from uncoated to a target coating thickness of about 70 μm.
Journal ArticleDOI
Continuous quantitative monitoring of powder mixing dynamics by near-infrared spectroscopy
Daniel M. Koller,Andreas E. Posch,Gudrun Hörl,Christine Voura,Stefan Radl,Nora Anne Urbanetz,Simon D. Fraser,Walter Tritthart,Franz Reiter,Merten Schlingmann,Johannes Khinast +10 more
TL;DR: In this paper, FT-NIR spectroscopy with a fiber optical reflection probe was applied as a process analytical technology tool for the continuous quantitative in-line monitoring of pharmaceutical powder mixing processes in a bladed mixer.
Journal ArticleDOI
Supervisory Control System for Monitoring a Pharmaceutical Hot Melt Extrusion Process
Daniel Markl,Patrick Wahl,José C. Menezes,Daniel M. Koller,Barbara Kavsek,Kjell Francois,Eva Roblegg,Johannes Khinast +7 more
TL;DR: A multivariate supervisory quality control strategy was developed for the process to monitor the hot melt extrusion process on the basis of principal component analysis (PCA) of the NIR spectra.
Journal ArticleDOI
Toxicity of oxidized phospholipids in cultured macrophages
Ute Stemmer,Zsuzsanna Dunai,Daniel M. Koller,Gabriel Pürstinger,Elfriede Zenzmaier,Hans P Deigner,Elma Aflaki,Elma Aflaki,Dagmar Kratky,Albin Hermetter +9 more
TL;DR: The data reveal that oxidized phospholipids induce apoptosis in cultured macrophages and the mechanism of lipid toxicity, however, largely depends on the structural features of the oxidized sn- 2 chain.
Journal ArticleDOI
Monitoring Blending of Pharmaceutical Powders with Multipoint NIR Spectroscopy
Otto Scheibelhofer,Nikolaus Balak,Patrick Wahl,Daniel M. Koller,Benjamin J. Glasser,Johannes Khinast +5 more
TL;DR: This experimental study investigates the mixing behavior of acetyl salicylic acid as an API and α-lactose monohydrate as an excipient for different filling orders and filling levels in a blender to detect good and poor mixing positions inside the blender that are affected by convective and diffusive mixing.