2010
DOI: 10.1002/cjce.20427
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Precipitation of pharmaceuticals using a supercritical anti‐solvent (SAS) dechnique: A preliminary study

Abstract: The aims of this research were to investigate the applicability of the supercritical anti-solvent (SAS) process on the precipitation of pharmaceuticals (andrographolide and acetaminophen). In particular, the goal of this research was to study the influence of pressure at 10 and 24 MPa on particle characteristics (morphology, crystalline structure, polymorphic form, size, size distribution, and precipitation yield), and to compare the precipitation efficiency of SAS process and evaporation process. Scanning ele… Show more

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Cited by 5 publications
(1 citation statement)
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“…Supercritical carbon dioxide (SC-CO 2 ) assisted technologies [16][17][18][19][20] allow us to overcome these limits; among these, supercritical antisolvent (SAS) precipitation stands out for the production of nanoparticles and microparticles of different materials. [21,22] However, SAS coprecipitation has been successful only in some cases: the main failure is achieved when the polymer and the active principle precipitate separately. In general, this occurs when nanoparticles are formed, whereas, the production of microparticles seems to ease the effective coprecipitation.…”
Section: Introductionmentioning
confidence: 99%
“…Supercritical carbon dioxide (SC-CO 2 ) assisted technologies [16][17][18][19][20] allow us to overcome these limits; among these, supercritical antisolvent (SAS) precipitation stands out for the production of nanoparticles and microparticles of different materials. [21,22] However, SAS coprecipitation has been successful only in some cases: the main failure is achieved when the polymer and the active principle precipitate separately. In general, this occurs when nanoparticles are formed, whereas, the production of microparticles seems to ease the effective coprecipitation.…”
Section: Introductionmentioning
confidence: 99%