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Unfractionated heparin is an anti-inflammatory mucoactive agent, with the potential to treat the inflamed and mucus-obstructed airways in patients with cystic fibrosis. In this study, unfractionated heparin has been spray-dried to produce spherical micronized particles in the size range 1-5 microm, which is suitable for delivery by dry-powder inhalation. Spray drying parameters have been optimized using a 2(4) factorial experimental design. The feed concentration and atomization spray flow rate have the greatest effects on recovery (typically 60%) and particle size.
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- 1 Finished
1/09/02 → 31/08/06