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  • Title: Advanced substrate fabrication for cell microarrays.
    Author: Hook AL, Thissen H, Voelcker NH.
    Journal: Biomacromolecules; 2009 Mar 09; 10(3):573-9. PubMed ID: 19159278.
    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.
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