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  • Title: Cellulose acetate butyrate and polycaprolactone for ketoprofen spray-dried microsphere preparation.
    Author: Giunchedi P, Conti B, Maggi L, Conte U.
    Journal: J Microencapsul; 1994; 11(4):381-93. PubMed ID: 7931938.
    Abstract:
    Ketoprofen-loaded microspheres made with a polymeric blend were prepared by a spray-drying technique. Organic solutions of two polymers, cellulose acetate butyrate (CAB) and poly(epsilon-caprolactone) (PCL), in different weight ratios, and of ketoprofen (Ket) were prepared and sprayed, in different experimental conditions, achieving drug-loaded microspheres. The obtained spray-dried microspheres were characterized in terms of yield of production, shape, size, surface properties and drug content, and their in vitro drug release behaviours were determined at different pH values.
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