A composite of hydroxyapatite with electrospun biodegradable nanofibers as a tissue engineering material

Yoshihiro Ito, Hirokazu Hasuda, Masanobu Kamitakahara, Chikara Ohtsuki, Masao Tanihara, Inn Kyu Kang, Oh Hyeong Kwon

Research output: Contribution to journalArticlepeer-review

210 Citations (Scopus)

Abstract

Biodegradable and biocompatible poly(3-hydroxybutyrate-co-3- hydroxyvalerate) (PHBV), a copolymer of microbial polyester, was fabricated as a nanofibrous film by electrospinning and composited with hydroxyapatite (HAp) by soaking in simulated body fluid. Compared with a PHBV cast (flat) film, the electrospun PHBV nanofibrous film was hydrophobic. However, after HAp deposition, both of the surfaces were extremely hydrophilic. The degradation rate of HAp/PHBV nanofibrous films in the presence of polyhydroxybutyrate depolymerase was very fast. Nanofiber formation increased the specific surface area and HAp enhanced the invasion of enzyme into the film by increasing surface hydrophilicity. The surface of the nanofibrous film showed enhanced cell adhesion over that of the flat film, although cell adhesion was not significantly affected by the combination with HAp.

Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalJournal of Bioscience and Bioengineering
Volume100
Issue number1
DOIs
Publication statusPublished - 2005 Jan 1
Externally publishedYes

Keywords

  • Biodegradable polymer
  • Cell attachment
  • Electrospun nanofibers
  • Hydroxyapatite
  • Tissue engineering

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology

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