Encontrados 3 documentos, a visualizar página 1 de 1
Supercritical polymerization and impregnation of molecularly imprinted polymers...
Duarte, Ana Rita C.; Casimiro, T.; Duarte, A. A.; Simplicio, A. L.; Duarte, Catarina M. M.Herein the preparation of molecularly imprinted polymers (MIPs) using supercritical fluid technology is evaluated. Poly(diethylene glycol dimethacrylate), polyDEGDMA, was synthesised in supercritical carbon dioxide (scCO2) using a carboxylic acid end-capped perfluoropolyether oil as stabiliser. Polymerisations were carried out in the presence of different concentrations of two different template drug molecules,...
Preparation of ethylcellulose/methylcellulose blends by supercritical antisolve...
Duarte, Ana Rita C.; Gordillo, M. D.; Cardoso, M. Margarida; Simplicio, A. L.; Duarte, Catarina M. M.The supercritical antisolvent (SAS) techniquewas used to prepare ethyl cellulose/methyl cellulose blends, two biocompatible polymers commonly used as drug carriers in controlled delivery systems. Ethyl cellulose is widely used as a drug carrier. The drug release of the delivery devices can be controlled to some extent by addition of a water-soluble or water swellable polymer, such as methyl cellulose. This lead...
Preparation of controlled release microspheres using supercritical fluid techno...
Duarte, Ana Rita C.; Costa, M. S.; Simplicio, A. L.; Cardoso, M. Margarida; Duarte, Catarina M. M.Ethylcellulose/methylcellulose blends were produced using different precipitation techniques and impregnated with naproxen, a non-steroidal anti-inflammatory drug (NSAID). Solvent-evaporation technique was used not only for the preparation of ethylcellulose/methylcellulose microspheres but also to encapsulate naproxen. Supercritical fluid (SCF) impregnation was also performed to prepare naproxen loaded microsph...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||