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Published on: April 12, 2022
Characterization and Aerosolization Performance of HydroxyPropyl-Beta-Cyclodextrin Particles Produced Using
Hsien-Tsung Wu1, Yao-Hsiang Chuang1, Han-Cyuan Lin1
1Department of Chemical Engineering, Ming Chi University of Technology, 84 Gungjuan Rd., Taishan Dist., New Taipei City 24301, Taiwan.
Supercritical assisted atomization produced hydroxypropyl-beta-cyclodextrin (HP-β-CD) particles for pulmonary drug delivery. Leucine addition significantly improved aerosol performance, enhancing fine particle fraction.
Area of Science:
- Materials Science
- Pharmaceutical Technology
- Chemical Engineering
Background:
- Hydroxypropyl-beta-cyclodextrin (HP-β-CD) is a promising excipient for drug delivery.
- Pulmonary drug delivery requires particles with specific aerodynamic properties.
Purpose of the Study:
- To optimize the production of HP-β-CD particles using supercritical assisted atomization (SAA).
- To investigate the effect of leucine (LEU) on the aerosol performance of HP-β-CD particles for pulmonary applications.
Main Methods:
- Supercritical assisted atomization (SAA) using carbon dioxide and aqueous ethanol.
- Systematic investigation of process parameters: solvent composition, temperatures, concentrations, and flow rates.
- Evaluation of particle morphology, size, and fine particle fraction (FPF) with and without leucine.
Main Results:
- Optimized conditions yielded fine, spherical HP-β-CD particles.
- Optimal solvent: 54.2% (w/w) aqueous ethanol.
- Optimal temperatures: 373.2 K (precipitator) and 353.2 K (saturator).
- Optimal CO2 to HP-β-CD solution flow rate ratio: 1.8.
- Addition of 13.0 mass% leucine increased FPF by 1.8 times.
Conclusions:
- SAA is effective for producing HP-β-CD particles for pulmonary drug delivery.
- Leucine acts as a dispersion enhancer, significantly improving aerosol performance.
- Optimized HP-β-CD particles with leucine show potential as advanced pulmonary drug carriers.
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