Mixed micelles from methoxy poly(ethylene glycol)-polylactide and methoxy poly(ethylene glycol)-poly(sebacic anhydride) copolymers as drug carriers

  • Po Liang Lai
  • , Cheng Chun Hsu
  • , Tsang Hao Liu
  • , Ding Wei Hong
  • , Lih Huei Chen
  • , Wen Jer Chen
  • , I. Ming Chu*
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

17 Scopus citations

Abstract

mPEG-PLLA (poly l-lactic acid) is synthesized by ring-opening polymerization of lactide and conjugation with mPEG. Sebacic acid is modified with acetic anhydride and condensed with mPEG to form mPEG-PSA (poly sebacic anhydride). The micelles formed by mPEG-PLLA are characterized by slow degradation and low drug encapsulation efficiency; on the contrary, mPEG-PSA micelles are characterized by rapid degradation but high encapsulation efficiency. They can merge into spherical micelles (Φ = 140 nm) by self-assembly in water. The mixed micelles can successfully encapsulate a typical hydrophobic drug (curcumin), and significantly improve its solubility. Experimental results show that the mixed micelles have the features of high encapsulation efficiency and slow degradation.

Original languageEnglish
Pages (from-to)846-855
Number of pages10
JournalReactive and Functional Polymers
Volume72
Issue number11
DOIs
StatePublished - 11 2012

Keywords

  • Diblock copolymers
  • Drug delivery system
  • Mixed micelles
  • Polyanhydride
  • Self-assembly

Fingerprint

Dive into the research topics of 'Mixed micelles from methoxy poly(ethylene glycol)-polylactide and methoxy poly(ethylene glycol)-poly(sebacic anhydride) copolymers as drug carriers'. Together they form a unique fingerprint.

Cite this