Using populations of beads for the fabrication of arrays on surfaces
First Claim
1. An array comprising spatially discrete nucleic acid features on a surface, wherein each spatially discrete feature comprises two or more different amplification primers each having a different sequence attached to the surface, and wherein each spatially discrete feature is separated from any other discrete feature by a space which does not carry amplification primers, wherein the array of spatially discrete features comprises an average center-to-center distance that is less than two times the diameter of a feature.
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Abstract
The present invention provides methods for creating an array of features on a surface based on content transferred from a plurality of beads to the surface. Nucleic acid content can be transferred using a method including the steps of (a) providing a surface having one or more primer oligonucleotides attached to the surface; (b) providing a pool of beads, wherein beads in the pool have a plurality of templates attached thereto, the plurality comprising multiple copies of a single nucleic acid template sequence; (c) arraying the beads onto the surface by hybridizing the templates to the primer oligonucleotides; and (d) extending the primers to produce copies of the templates attached to the surface.
65 Citations
20 Claims
- 1. An array comprising spatially discrete nucleic acid features on a surface, wherein each spatially discrete feature comprises two or more different amplification primers each having a different sequence attached to the surface, and wherein each spatially discrete feature is separated from any other discrete feature by a space which does not carry amplification primers, wherein the array of spatially discrete features comprises an average center-to-center distance that is less than two times the diameter of a feature.
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9. A method of creating an array comprising spatially discrete nucleic acid features on a surface, wherein each spatially discrete feature comprises two or more different amplification primers each having a different sequence attached to the surface, and wherein each spatially discrete is separated from any other discrete feature by a space which does not carry amplification primers, the method comprising:
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(a) providing a plurality of beads, wherein each bead in the plurality of beads comprises nucleic acid content comprising two or more different amplification primers each having a different sequence; (b) contacting the plurality of beads with a surface to produce a layer of beads on the surface, wherein the layer of beads comprises an average center-to-center distance that is less than two times the diameter of a bead; (c) transferring the nucleic acid content from the beads to the surface to create an array of spatially discrete features on the surface, wherein each spatially discrete feature comprises nucleic acid content from a bead in the plurality of beads, the nucleic acid content comprising amplification primers and wherein each spatially discrete feature on the array is separated from any other discrete feature by a space which does not carry amplification primers; (d) removing the plurality of beads from the surface. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 20)
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Specification