A Pharmaceutical Research study trained Random Forest and XGBoost classifiers on particle size, shape, surface energy, and silica dry-coating data to predict powder blend flowability category. The accuracy holds up as a screening tool and breaks down in specific, predictable places.
FDA's proposed hub-and-spoke registration rule treats geographically separate manufacturing units as one establishment. The registration paperwork is new; proving that blend uniformity, granulation endpoints, and moisture behavior actually match between sites is the older, harder problem.
Two lots that pass the same incoming flowability spec can still granulate differently after roller compaction. The reason usually traces to ribbon density, which responds to roll force, gap width, and feed screw speed as an interacting set, not to roll pressure in isolation.
Geldart classification, minimum fluidization velocity, bubble dynamics, droplet-to-particle size ratio, and permeability all determine whether a fluidized bed process delivers controlled granule growth, uniform coating, or consistent drying at production scale.
Process analytical technology combined with machine learning is changing residual moisture control and yield prediction in pharmaceutical and food spray drying. The gains are real but bounded, and the off-line test panel has not been replaced.
Poorly soluble APIs now represent the majority of the pharmaceutical development pipeline. Dissolution and oral bioavailability are determined by molecular solubility, surface wetting behavior, solid-state stability, and how the formulation interacts with the GI environment from first contact onward. Amorphous dispersions, lipid systems, nanocrystals, and co-crystals each rely on different surface mechanisms to deliver their intended advantage.
Universal dust explosivity criteria fail because explosibility depends [...]
Nano spray drying creates submicron powders from fragile [...]
AI-based in-line particle size monitoring allows real-time tracking [...]
powder deformation behavior under pressure in different ways. [...]
