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J Am Chem Soc. 2005 Feb 16;127(6):1598-9.

Biocompatible micropatterning of two different cell types.

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  • 1Department of Chemical and Materials Engineering, University of Cincinnati, 497 Rhodes Hall, Cincinnati, OH 45221, USA.

Abstract

The spatial arrangement of individual cell types can now be routinely controlled using soft-lithography-based micropatterning of complementary cell-adhesive and cell-resistant patterns. However, the application of these tools in tissue engineering to recreate tissue complexity in vitro has been hampered by the challenge of finding noncytotoxic procedures for converting complementary cell-resistant regions that define the arrangement of the first cell type into cell-adhesive regions to allow for the attachment of other cell types. A polyelectrolyte assembly approach is presented here for the first time, which allows for this noncytotoxic conversion and, thus, micropatterning of two different cell types, for example, endothelial cells and fibroblasts, on biodegradable substrates. The flexibility of this approach is further demonstrated by inducing organized capillary formation by endothelial cells on micropatterned lines followed by subsequent assembly of fibroblasts.

PMID:
15700968
[PubMed - indexed for MEDLINE]
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