Direct coating of bioactive sol-gel derived silica on poly(ε-caprolactone) nanofibrous scaffold using co-electrospinning

Kwan Ha Shin, Ji Hyun Sung, Young-Hag Koh, Jong Hoon Lee, Won Young Choi, Hyoun Ee Kim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This study reports a novel way of directly coating a poly(ε-caprolactone) (PCL) nanofibrous scaffold with bioactive sol-gel derived silica by directly co-electrospinning (Co-ES) a PCL solution and silica sol, used as the core and shell materials, respectively. In particular, the silica sols prepared using a sol-gel process at room temperature were heat-treated at 60 °C for various times, ranging from 0 to 9 h, in order to improve their spinability. The surface of the individual PCL nanofibers could be covered completely with a bioactive silica layer using a silica sol heat-treated at 60 °C for more than 6 h, whilst preserving the nanofibrous structure. Fourier-transform infrared spectroscopy (FT-IR) revealed only the characteristic bands associated with the PCL and sol-gel derived silica materials without any noticeable band shift.

Original languageEnglish
Pages (from-to)1539-1542
Number of pages4
JournalMaterials Letters
Volume64
Issue number13
DOIs
Publication statusPublished - 2010 Jul 15

Keywords

  • Fibre technology
  • Mechanical properties
  • Nanocomposites
  • Poly(ε-caprolactone)
  • Silica xerogel

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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