Liposomale Membranen unterschiedlicher Ladung als Diffusionsbarriere für aromatisch substituierte α‐Aminoalkohole

作者: Loni Schweikert , Hermann J. Roth

DOI: 10.1002/ARDP.19883211004

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摘要: Durch Mizellar-flussig-Chromatographie lassen sich eine Reihe pharmazeutisch interessanter aromatisch substituierter α-Aminoalkohole von den Liposomen-Bausteinen trennen und anschliesend UV-photometrisch quantifizieren. Die Experimente wurden mit Sojalecithin-Vesikeln, die in ihrer Membran unterschiedliche Ladungstrager enthielten, bei pH 7.4 durchgefuhrt. Lediglich gewisse Mengen der beiden lipophilen Wirkstoffe Propranolol Alprenolol konnten durch Einbau des zweikettigen Ladungstragers Dicetylphosphat uber einen langeren Zeitraum (mindestens 2 d) liposomal gebunden werden. Fur hydrophilen Oxprenolol, Orciprenalin Sotalol konnte Bindung an langere Zeit keiner verwendeten Liposomen-Arten erreicht werden. Liposomal membranes with different charge as diffusion barrier for aromatically substituted α-aminoalcohols The method of micellar liquid chromatography is successfully used separating a series drugs from the membrane building lipids. Drugs, which belong to chemical group α-aminoalcohols can be quantified UV-photometrically after separation. The experiments were carried out at soybean lecithin vesicles, contain carriers their membrane. incorporation dicetylphosphate bilayer, possesses two alkyl chains, leads only binding certain amounts lipophilic and least d. No effect over longer period could reached hydrophilic Orciprenaline all kinds liposomes.

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