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Fentanyl-loaded PLGA microspheres for local anesthesia

  • Hai Bang Lee*
  • , Gilson Khang
  • , Jin Cheol Cho
  • , John M. Rhee
  • , Jung Sik Lee
  • *Corresponding author for this work
  • Korea Research Institute of Chemical Technology

Research output: Contribution to journalConference articlepeer-review

Abstract

A highly water-soluble fentanyl citrate (FC)-loaded poly(lactide-co-glycolide) (PLGA) microspheres (MSs) was developed for local anesthetic applications. The release of FC in vitro was successfully performed over 15 days with close to zero order release pattern as experimental conditions with 20% of initial FC content, 0.4 wt% Al stearate, 1 wt% Span 80, 0.7ml of acetic acid, and 1 wt% of PLGA concentration. The surface morphology and cross-sectional view of FC/PLGA MSs prepared with acetic acid glacial, Al stearate, and mineral oil were non-porous, hollow, and porous, respectively.

Original languageEnglish
Pages (from-to)288-289
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Volume40
Issue number1
StatePublished - 1999.03
EventProceedings of the 1999 ACS Anaheim Meeting - Anaheim, CA, USA
Duration: 1999.03.211999.03.25

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