On-line monitoring of oxygen as a non-destructive method to quantify cells in engineered 3D tissue constructs

R. Santoro, C. Krause, I. Martin, D. Wendt

Research output: Contribution to journalArticle

Abstract

Regulatory guidelines have established the importance of introducing quantitative quality controls during the production and/or at the time of release of cellular grafts for clinical applications. In this study we aimed to determine whether on-line measurements of oxygen can be used as a non-destructive method to estimate the number of chondrocytes within an engineered cartilage graft. Human chondrocytes were seeded and cultured in a perfusion bioreactor, and oxygen levels in the culture medium were continuously monitored at the inlet and outlet of the bioreactor chamber throughout the culture period. We found that the drop in oxygen across the perfused construct was linearly correlated with the number of cells per construct (R 2=0.82, p

Original languageEnglish
Pages (from-to)696-701
Number of pages6
JournalJournal of Tissue Engineering and Regenerative Medicine
Volume6
Issue number9
DOIs
Publication statusPublished - Oct 2012

Keywords

  • Bioreactor
  • Chondrocyte
  • Perfusion
  • Quality control
  • Sensor
  • Tissue engineering

ASJC Scopus subject areas

  • Biomedical Engineering
  • Medicine (miscellaneous)
  • Biomaterials
  • Medicine(all)

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