Journal: Molecular Pharmaceutics
Article Title: High-Throughput Microarray Approaches for Predicting the Stability of Drug–Polymer Solid Dispersions
doi: 10.1021/acs.molpharmaceut.4c00955
Figure Lengend Snippet: Examples of different APIs/PVPVA printed dispersions. All images are reported without a cross-polarized filter (top part of each section) and with a cross-polarized filter (bottom part). The images were arranged in ascending order according to the displayed drug–polymer ratio. The top section shows the API/polymer loading ratios with no birefringence (no crystallization monitored). In contrast, the middle section shows the API/polymer loading ratios that show the start of birefringence detection (start of crystallization), and the bottom section shows the API/polymer loading ratios that show apparent birefringence detection (crystallization). Three different ratios for API/polymer loading were displayed to compare the assessment of crystallization by POM. All images are reported after storage of the microarrays in accelerated conditions for 6 months (75% relative humidity and 40 °C in stability oven). Final mass: 1000–1100 ng.
Article Snippet: A miniaturized, high-throughput technique was used to print microarrays of the drug–polymer mixtures using a piezoelectric inkjet printer Sciflexarrayer S5, Scienion (inkjet printer software sciflexarrayer (Scienion A, version 2.09.002)), and 70 μm orifice nozzle type 2 coating (Scienion, Germany).
Techniques: Polymer, Crystallization Assay