Building dry powder formulations using supercritical CO2 spray drying

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14 Citations (Scopus)


This short review covers the most recent literature on the bottom-up assembling of composite dry powder formulations using supercritical carbon dioxide (scCO2)-based technologies for pulmonary delivery. Special attention is given to the integration of scCO2–assisted spray drying (SASD) with different technologies, namely living polymerization, layer-by-layer deposition and quality-by-design (QbD). Examples of inhalation drug delivery systems are provided to highlight specific advantages of the use of SASD versus traditional particle engineering technologies. The opportunities to generate release particles from small molecule therapeutics to biologic drugs and nucleic acids, the scale-up of processes and perspectives are examined.

Original languageEnglish
Pages (from-to)12-16
Number of pages5
JournalCurrent Opinion in Green and Sustainable Chemistry
Publication statusPublished - 1 Jun 2017


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