| 초록 |
Spray drying is a widely used process to produce pharmaceutical powders. In the traditional spay drying process, the particle size distribution is relatively wide and not well controlled. Using electrical charge for spray drying offers a possibility to tailor the particle size and morphology. electrohydrodynamic spray drying uses a strong electric field to induce spraying jets. The present work describes a novel electrohydrodynamic spray drying setup based on coaxial nozzles. The obtained particles were characterized by an optical microscope. Electrohydrodynamic spray dried powders were also studied using DSC(Differential Scanning Calorimetry) analysis. Our results showed that the electrohydrodynamic spray dried encapsulated particles had a regular spherical shape having diameters of 2~4μm. |
