Membrane stabilization of biodegradable polymersomes

Joshua S. Katz, Dalia H. Levine, Kevin P. Davis, Frank S. Bates, Daniel A. Hammer, Jason A. Burdick

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Biodegradable polymersomes are promising vehicles for a range of applications. Their stabilization would improve many properties, including the retention and controlled release of polymersome contents, yet this has not been previously accomplished. Here, we present the first example of stabilizing fully biodegradable polymersomes through acrylation of the hydrophobic terminal end of polymersome-forming poly(caprolactone-b-ethylene glycol). Exposure of the resulting polymersomes loaded with a hydrophobic photoinitiator to ultraviolet light polymerized the acrylates, without affecting polymersome morphology or cell cytotoxicity. These stabilized polymersomes were more resistant to surfactant disruption and degradation. As an example of stabilized polymersome utility, the unintended release of doxorubicin (DOX) due to leakage from polymersomes decreased with membrane stabilization and slower sustained release was observed. Finally, DOX-loaded polymersomes retained their cytotoxicity following stabilization.

Original languageEnglish (US)
Pages (from-to)4429-4434
Number of pages6
Issue number8
StatePublished - Apr 21 2009


Dive into the research topics of 'Membrane stabilization of biodegradable polymersomes'. Together they form a unique fingerprint.

Cite this