Arrays formed of encoded beads having oligonucleotides attached
First Claim
1. A bead array comprising several planar assemblies of encoded beads each said assembly in a designated area on a substrate, wherein said encoded beads comprise a plurality of unique capture oligonucleotides and have a diameter of up to 10 microns, wherein the beads in said designated areas are arranged in rows and wherein the beads within the planar assemblies are in a planar hexagonal crystalline arrangement, and wherein a number of adjacent beads within the planar assemblies are encoded differently and have different oligonucleotides attached thereto, and other adjacent beads are encoded the same and have the same oligonucleotides attached thereto, said encoding allowing identification of the oligonucleotide attached thereto, and wherein differently encoded beads are randomly distributed within the planar assemblies.
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Abstract
A method and apparatus for the manipulation of colloidal particles and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution. Light-controlled electrokinetic assembly of particles near surfaces relies on the combination of three functional elements: the AC electric field-induced assembly of planar aggregates; the patterning of the electrolyte/silicon oxide/silicon interface to exert spatial control over the assembly process; and the real-time control of the assembly process via external illumination. The present invention provides a set of fundamental operations enabling interactive control over the creation and placement of planar arrays of several types of particles and biomolecules and the manipulation of array shape and size. The present invention enables sample preparation and handling for diagnostic assays and biochemical analysis in an array format, and the functional integration of these operations. In addition, the present invention provides a procedure for the creation of material surfaces with desired properties and for the fabrication of surface-mounted optical components.
102 Citations
27 Claims
- 1. A bead array comprising several planar assemblies of encoded beads each said assembly in a designated area on a substrate, wherein said encoded beads comprise a plurality of unique capture oligonucleotides and have a diameter of up to 10 microns, wherein the beads in said designated areas are arranged in rows and wherein the beads within the planar assemblies are in a planar hexagonal crystalline arrangement, and wherein a number of adjacent beads within the planar assemblies are encoded differently and have different oligonucleotides attached thereto, and other adjacent beads are encoded the same and have the same oligonucleotides attached thereto, said encoding allowing identification of the oligonucleotide attached thereto, and wherein differently encoded beads are randomly distributed within the planar assemblies.
- 2. A bead array comprising at least one planar assembly of encoded beads in a designated area on a substrate, wherein said encoded beads comprise a plurality of unique capture oligonucleotides and have a diameter of up to 10 microns, and within the planar assembly said beads are arranged to form planar crystals, and wherein a number of adjacent beads are encoded differently and have different oligonucleotides attached thereto, and other adjacent beads are encoded the same and have the same oligonucleotides attached thereto, said encoding allowing identification of the oligonucleotide attached thereto, and wherein differently-encoded beads are randomly distributed within said planar assembly.
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3. A bead array comprising at least one planar assembly of encoded beads in a designated area on a substrate, wherein said encoded beads comprise a plurality of unique capture oligonucleotides and have a diameter of up to 10 microns and the beads within the planar assembly are in a planar hexagonal crystalline arrangement, and wherein a number of adjacent beads are encoded differently and have different oligonucleotides attached thereto, and other adjacent beads are encoded the same and have the same oligonucleotides attached thereto, said encoding allowing identification of the oligonucleotide attached thereto, and wherein differently-encoded beads are randomly distributed within said planar assembly.
- 4. A bead array comprising several planar assemblies of encoded oligonucleotide-bearing beads, each said assembly in a designated area on a substrate, wherein said beads (a) are encoded by oligonucleotides, (b) comprise a plurality of unique capture oligonucleotides, (c) have diameters of up 10 microns, and wherein within the planar assemblies said beads are in a planar crystalline arrangement, and wherein a number of adjacent beads are encoded differently and have different oligonucleotides attached thereto, and other adjacent beads are encoded the same and have the same oligonucleotides attached thereto, said encoding allowing identification of the oligonucleotide attached thereto, and wherein differently-encoded beads are randomly distributed within said planar assembly.
- 23. An array of arrays each comprising a plurality of bead arrays according to any of claims l-4.
Specification