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Microencapsulation of ketoprofen using Eudragit E, L and S (acrylic resins) was investigated. The preparation is based on the dispersion of acetone containing ketoprofen in liquid paraffin. Aluminium tristearate was used as an additive for the preparation of microcapsules. In the preparation of...
Microencapsulation of ketoprofen using Eudragit RS and RL (acrylic resins) was investigated based on the dispersion system of ketoprofen-containing acetone in liquid paraffin. Aluminium tristearate was used as an additive for the preparation of microcapsules. Good reproducibility was observed in...
Liposomes encapsulating Percoll were prepared by reverse phase evaporation and characterized by electron microscopy (EM). Encapsulated Percoll was contained between lipid bilayers and in the lumen of the liposomes. The largest population of liposomes had diameters between 110 and 140 nm (22·6...
The controlled release behaviour of bleomycin hydrochloride microcapsules was investigated by an in vitro dissolution method and an in vivo antitumour test. Bleomycin hydrochloride microcapsules prepared using the highest cooling rate exhibited sustained release characteristics and its release...
Phagocytosis of microcapsules by guinea-pig polymorphonuclear leucocytes (PMNs) was examined particularly considering the method of measurement and the effects of surface negative charges of the microcapsules and plasma proteins. Estimation of phagocytosis by oxygen consumption was found to...
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