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학술저널
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한국약제학회 Journal of Pharmaceutical Investigation Journal of Pharmaceutical Investigation 제49권 제4호
발행연도
2019.1
수록면
405 - 426 (22page)

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Background Spray drying is a relatively simple, fast, reproducible and scalable drying technology that is suitable for drying heat-sensitive biopharmaceutical compounds. In view of the rapid progress of nanoencapsulation technologies in the pharmaceutical sector, nano spray drying is used in research to improve the powder formulation and release of active ingredients. The Nano Spray Dryer B-90 of the Swiss company Büchi Labortechnik AG extends the size of the powder particles produced into the nanometer scale with narrow size distributions and high encapsulation efficiency. Area covered This study explains the special nano spray drying technology and discusses the influence of the respective process parameters on the powder properties. Applications of nano spray drying for the formulation and encapsulation of active ingredients in PLA/PLGA biopolymers are investigated and discussed. Optimized process parameters for the application of nano spray drying of similar substances are presented. Expert opinion The analyzed studies show the possibility of producing PLGA particles from approx. 2 μm to below 200 nm by nano spray drying, as well as the encapsulation of various active ingredients in spherical particles and nano-in-nanoparticle composite structures made of PLGA polymers for controlled drug delivery systems. The researched applications are primarily in the therapeutic field, such as the treatment of inhalation diseases, inflammations, cancer, immune diseases, genetic disorders, the regulation of vasodilatation or the surface coating of medical implants with biocompatible PLGA nanoparticles.

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