Produktdesign durch membrangestützte Antisolvent-Kristallisation
نویسندگان
چکیده
منابع مشابه
Supercritical antisolvent precipitation of PHBV microparticles.
The micronization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) from organic solutions using supercritical antisolvent (SAS) technique has been successfully achieved. SAS experiments were carried out at different operational conditions and microspheres with mean diameters ranging from 3 to 9 microm were obtained. The effect of CO(2) and liquid flow, temperature and pressure on particle...
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Supercritical antisolvent micronization (SAS) is a versatile technique that allows the obtainment of different morphologies and dimensions of precipitates, but only in some cases nanoparticles were produced. This work is focused on the selection of the SAS operating conditions to obtain this morphology. A series of experiments on several compounds and different solvents at 40 °C and selected pr...
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Micronization of minocycline hydrochloride dissolved in ethanol and with supercritical carbon dioxide as antisolvent was successfully performed using a recently built SAS apparatus. Amorphous particles of minocycline ranging from 100 to 1000 nm (depending on the operating conditions) were obtained. The mean particle size and the particle size distribution were determined by Dynamic Light Scatte...
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Propolis is used by bees for holding a hive together, and for sterilizing the hive against microbial infections. Propolis contains a high concentration of flavonoids, which are used in a wide range of cosmetic and health food preparations for their antimicrobial properties. Propolis is usually dissolved in ethanol or ethanol/water mixtures to produce a tincture, and to remove insoluble material...
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ژورنال
عنوان ژورنال: Chemie Ingenieur Technik
سال: 2007
ISSN: 0009-286X,1522-2640
DOI: 10.1002/cite.200750228