Advanced substrate fabrication for cell microarrays

Biomacromolecules. 2009 Mar 9;10(3):573-9. doi: 10.1021/bm801217n.

Abstract

The fabrication and characterization of chemical patterns using a technique that can be readily integrated with methods currently used for the formation of microarrays is presented. A high density poly(ethylene glycol) coating was deposited on glass slides as a background exhibiting low cell attachment properties. Phenylazide modified polymers were then printed on this background. UV irradiation of these polymer arrays resulted in the cross-linking of the polymer spots and their covalent attachment to the surface. Cell attachment was shown to follow the resultant surface chemistry pattern. Furthermore, the use of a robotic contact printer enabled the facile deposition of DNA microarrays on top of and aligned with the polymer microarrays. A transfected cell microarray was generated in this way, demonstrating not only the ability of this platform to limit cell attachment to specific regions, but the suitability for chip-based functional genomics, in particular, and high density cell assays in general.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azides / chemistry
  • Cell Proliferation
  • Coated Materials, Biocompatible / chemical synthesis
  • Coated Materials, Biocompatible / chemistry*
  • Glass / chemistry
  • Humans
  • Macromolecular Substances / chemical synthesis
  • Macromolecular Substances / chemistry*
  • Particle Size
  • Polyethylene Glycols / chemistry*
  • Surface Properties
  • Tissue Array Analysis / methods*
  • Tumor Cells, Cultured
  • Ultraviolet Rays

Substances

  • Azides
  • Coated Materials, Biocompatible
  • Macromolecular Substances
  • Polyethylene Glycols
  • phenylazide