Embossing of micropatterned ceramics and their cellular response

Danish Nadeem, Terje Sjostrom, Andrew Wilkinson, Carol-Anne Smith, Richard O. C. Oreffo, Matt J. Dalby, Bo Su*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

16 Citations (Scopus)

Abstract

The aim of this work is to investigate the use of microtopographies in providing physical cues to modulate the cellular response of human mesenchymal stem cells on ceramics. Two microgrooved patterns (100 m/50 m, 10 m/10 m groove/pitch) were transcribed reversely onto alumina green ceramic tapes via an embossing technique followed by sintering. Characterization of the micropatterned alumina surfaces and their cellular response was carried out. Spread and polygonal cell morphologies were observed on the wider groove (50 m/100 m) surface. Cells seeded onto the narrow groove (10 m/10 m) surface aligned themselves alongside the grooves, resulting in more elongated cell morphology. More osteoid matrix nodules shown by osteopontin and osteocalcin biomarkers were detected on the larger grooved surfaces after cell culture of 21 days, indicating a greater level of osteogenicity. This study has shown that micropatterned wider groove (50 m) topographies are more suitable surfaces for improving osseointegration of ceramic implants. (c) 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 101A: 3247-3255, 2013.

Original languageEnglish
Pages (from-to)3247-3255
Number of pages9
JournalJournal of Biomedical Materials Research Part A
Volume101
Issue number11
DOIs
Publication statusPublished - Nov 2013

Keywords

  • ceramics
  • embossing
  • micropatterns
  • stem cells
  • osseointegration
  • MESENCHYMAL STEM-CELLS
  • TOPOGRAPHICAL CONTROL
  • OSTEOBLAST ADHESION
  • CONTACT GUIDANCE
  • ALUMINA CERAMICS
  • IN-VITRO
  • HYDROXYAPATITE
  • ORGANIZATION
  • COMPONENTS
  • SURFACES

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