Proceedings of the PSK Conference (대한약학회:학술대회논문집)
- 2003.10b
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- Pages.236.1-236.1
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- 2003
Evaluation of solid surface properties by analysis of liquid penetration rate into powder bed - Examination of surface free energy -
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Choi, Woo-Sik
(Pusan National University) ;
- Ha, Jong-Hak (Pusan National University)
- Published : 2003.10.01
Abstract
Evaluation of solid surface properties is very important for formulation of solid dosage form, specially insoluble drugs. The contact angle of insoluble drugs was measured by the penetration rate into powder bed using Washburn equation and wicking method. From the measured contact angle data, the surface free energy value of pharmaceutical powders
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