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Updated: Aug 11, 2026

Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
Intestinal uptake and biodistribution of novel polymeric micelles after oral administration
Frédéric Mathot1, L van Beijsterveldt, V Préat
1Université Catholique de Louvain, Department of Pharmaceutical Technology, Avenue E. Mounier 73 UCL 73.20, 1200 Brussels, Belgium.
Abstract:
To determine the fate of polymeric micelles after oral administration, we investigated the possible transport of polymeric micelles across Caco-2 monolayers and their biodistribution in rats after per os administration of [14C]-labelled mmePEG750P(CL-co-TMC) micelles containing risperidone (BCS Class II drug). mmePEG750P(CL-co-TMC) was able to cross Caco-2 monolayer via a saturable transport mechanism. The oral bioavailability of the polymer was 40%. Polymeric micelles based on mmePEG750P(CL-co-TMC) showed very low clearance by the reticuloendothelial system (RES) and a renal excretion. A sustained release of risperidone was observed.
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