Controlled release of liposome-encapsulated Naproxen from core-sheath electrospun nanofibers

Carbohydr Polym. 2014 Oct 13:111:18-24. doi: 10.1016/j.carbpol.2014.04.017. Epub 2014 Apr 18.

Abstract

Naproxen (NAP) loaded nanofibers of different structures have been successfully prepared by electrospinning. The structures of the nanofibers are NAP and cellulose acetate (CA) mixed nanofibers (NF-1), nanofibers with NAP/CA mixed core and CA sheath (NF-2), and NAP loaded liposomes and sodium hyaluronate (HA-Na) mixed core with CA sheath (NF-3). The structure and morphology of the nanofibers were characterized and the drug release behaviors were investigated. It was found that NAP can disperse in the HA-Na or CA matrix in molecular level without formation of NAP crystals and dimers. The drug release behaviors of NF-1 and NF-2 show a non-Fickian diffusion mechanism, while the NF-3 shows a specific drug release behavior with a burst release within 8h followed by a sustained drug release for 12 days. The particular two-stage drug release behavior of NF-3 nanofibers offers the materials promising applications as wound dressing materials.

Keywords: Cellulose acetate; Core-sheath nanofibers; Electrospinning; Liposomes; Naproxen; Sustained drug release.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Inflammatory Agents, Non-Steroidal / administration & dosage*
  • Cellulose / analogs & derivatives*
  • Cellulose / chemistry
  • Cellulose / ultrastructure
  • Delayed-Action Preparations / chemistry*
  • Drug Liberation
  • Liposomes / chemistry*
  • Nanofibers / chemistry*
  • Naproxen / administration & dosage*

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Delayed-Action Preparations
  • Liposomes
  • acetylcellulose
  • Naproxen
  • Cellulose