Hydrophilic fluorescein isothiocyanate-dextran (FD, mol. weight 4000 g/mol) could be readily incorporated in polymersomes (PS) made of different amphiphilic biodegradable block copolymers based on PEG-PDLLA, PEG-PCL, and PEG-PTMC. The FD release from these polymersomes in PBS at 37 °C was complete within approximately 10 days. Both the length of the hydrophobic block as well as the type of the hydrophobic block have a major influence on the release rate of FD from the PS, while the hydrophilic block length has only a minor influence on the release rate. For all systems the release of FD follows first order kinetics, confirming that the FD containing polymersome system is a membrane controlled reservoir system.
|Publication status||Published - 2 Apr 2008|
|Event||10th European Symposium on Controlled Drug Delivery, ESCDD 2008 - Noordwijk aan Zee, Netherlands|
Duration: 2 Apr 2008 → 4 Apr 2008
Conference number: 10
|Conference||10th European Symposium on Controlled Drug Delivery, ESCDD 2008|
|City||Noordwijk aan Zee|
|Period||2/04/08 → 4/04/08|