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- Publisher
- Wiley
- Copyright
- Copyright © 2010 Wiley Subscription Services
- ISSN
- 8756-7938
- eISSN
- 1520-6033
- DOI
- 10.1002/btpr.317
- pmid
- 19785042
- Publisher site
- See Article on Publisher Site
Abstract
Three‐dimensional (3D) cell cultures have many advantages over two‐dimensional cultures. However, seeding cells in 3D scaffolds such as nonwoven fibrous polyethylene terephthalate (PET) matrices has been a challenge task in tissue engineering and cell culture bioprocessing. In this study, a centrifugal seeding method was investigated to improve the cell seeding efficiency in PET matrices with two different porosities (93% and 88%). Both the centrifugal force and centrifugation time were found to affect the seeding efficiency. With an appropriate centrifugation speed, a high 80−90% cell seeding efficiency was achieved and the time to reach this high seeding efficiency was less than 5 min. The seeding efficiency was similar for matrices with different porosities, although the optimal seeding time was significantly shorter for the low‐porosity scaffold. Post seeding cell viability was demonstrated by culturing colon cancer cells seeded in PET matrices for over 5 days. The centrifugal seeding method developed in this work can be used to efficiently and uniformly seed small fibrous scaffolds for applications in 3D cell‐based assays for high‐throughput screening. © 2009 American Institute of Chemical Engineers Biotechnol. Prog., 2010
Journal
Biotechnology Progress – Wiley
Published: Jan 1, 2010
Keywords: ; ; ; ;