Volume 43, Issue 6 pp. 1115-1123
Research Article

Solid Solubilities of Sulfonamides and Use of Rapid Expansion of Supercritical Solutions for Microparticle Production

Tsung-Mao Yang

Tsung-Mao Yang

National Taipei University of Technology, Department of Chemical Engineering and Biotechnology, Taipei, Taiwan

National Defense University, Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, Taoyuan, Taiwan

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Jin-Shuh Li

Jin-Shuh Li

National Defense University, Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, Taoyuan, Taiwan

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Tsao-Fa Yeh

Tsao-Fa Yeh

National Defense University, Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, Taoyuan, Taiwan

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Chie-Shaan Su

Corresponding Author

Chie-Shaan Su

National Taipei University of Technology, Department of Chemical Engineering and Biotechnology, Taipei, Taiwan

Correspondence: Chie-Shaan Su ([email protected]), Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan.Search for more papers by this author
First published: 08 April 2020
Citations: 5

Abstract

The solubility of solid active pharmaceutical ingredients in supercritical fluids is a major thermodynamic criterion for selection and screening of microparticle generation processes. To develop an efficient method for solubility prediction, a solution model was adopted to establish the correlations of the solid solubilities of six sulfonamides in supercritical CO2. The model was capable of determining solubility correlations. Accordingly, it was attempted to simplify and generalize the model, yielding a predictive solution model, which provided order-consistent solubility predictions. A case study for model extrapolation was conducted. After understanding the mechanisms underlying the solubility of sulfonamides, the rapid expansion of supercritical solutions (RESS) process was applied to produce microparticles of p-toluenesulfonamide, an anticancer drug. The effects of RESS process parameters were investigated.

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