A method and apparatus for preparation of a substrate containing a plurality of sequences. Photoremovable groups are attached to a surface of a substrate. Selected regions of the substrate are exposed to light so as to activate the selected areas. A monomer, also containing a photoremovable group, i
A method and apparatus for preparation of a substrate containing a plurality of sequences. Photoremovable groups are attached to a surface of a substrate. Selected regions of the substrate are exposed to light so as to activate the selected areas. A monomer, also containing a photoremovable group, is provided to the substrate to bind at the selected areas. The process is repeated using a variety of monomers such as amino acids until sequences of a desired length are obtained. Detection methods and apparatus are also disclosed.
대표청구항▼
1. A method for synthesizing polymers on a substrate comprising the steps of: (a) providing a substrate comprising polymers immobilized on a surface thereof, the polymers each coupled to a photoremovable protecting group; (b) directing light using a mirror onto the surface of the substrate so a
1. A method for synthesizing polymers on a substrate comprising the steps of: (a) providing a substrate comprising polymers immobilized on a surface thereof, the polymers each coupled to a photoremovable protecting group; (b) directing light using a mirror onto the surface of the substrate so as to reach only a first location to remove the protecting groups from the polymers in the first locations; and (c) contacting the substrate with a first monomer to couple the first monomer to the polymers in the first location, the first monomer having a photoremovable protecting group thereon and wherein the polymers in the first location are different from polymers in a second location. 2. The method of claim 1, wherein the polymers are nucleic acids and the monomers are nucleotides.3. The method of claim 1, wherein the polymers are peptides and the monomers are amino acids.4. The method of claim 1, wherein the substrate is a glass substrate.5. The method of claim 1, wherein the first location is smaller than 0.01 cm2.6. The method of claim 2, wherein the nucleic acids are attached to the substrate via a linker.7. The method of claim 1, wherein the protecting group is selected from the group consisting of orthonitrobenzyl derivatives, 6-nitroveratryloxycarbonyl, 2-nitrobenzyloxycarbonyl, α,α-dimethyl-dimethoxybenzyloxycarbonyl, o-hydroxy-α-methyl cinnamoyl derivatives and mixtures thereof.8. A method for synthesizing polymers on a substrate comprising the steps of: (a) providing a substrate comprising photoremovable protecting groups immobilized on a surface thereof; (b) directing light using a mirror onto the surface of the substrate so as to reach a selected location to remove the protecting group in the selected location; (c) contacting the substrate with a first monomer to immobilize the first monomer to the selected location, the first monomer having a photoremovable protecting group thereon; and (d) repeating steps (b) and (c) until the desired polymers have been synthesized. 9. The method of claim 8, wherein the polymers are nucleic acids and the monomers are nucleotides.10. The method of claim 8, wherein the polymers are peptides and the monomers are amino acids.11. The method of claim 8, wherein the substrate is a glass substrate.12. The method of claim 8, wherein the selected location is smaller than 0.01 cm2.13. The method of claim 9, wherein the protecting groups are attached to the substrate via a linker.14. The method of claim 8, wherein the protecting group is selected from the group consisting of orthonitrobenzyl derivatives, 6-nitroveratryloxycarbonyl, 2-nitrobenzyloxycarbonyl, α,α-dimethyl-dimethoxybenzyloxycarbonyl, o-hydroxy-α-methyl cinnamoyl derivatives and mixtures thereof.15. A method for synthesizing polymers on a solid phase comprising the steps of: (a) providing a substrate as the solid phase, wherein the substrate comprises polymers immobilized on a surface thereof, the polymers each coupled to a photoremovable protecting group; (b) irradiating a first location of the substrate by directing light using a mirror to remove the protecting group from the polymers in the first location without irradiating a second location of the substrate; and (c) contacting the substrate with a first monomer to couple the first monomer to the polymers in the first location, the first monomer having a protecting group thereon, thereby forming a first polymer on the substrate in the first location that is different from a polymer in the second location. 16. The method of claim 15, wherein the polymers are nucleic acids and the monomers are nucleotides.17. The method of claim 15, wherein the polymers are peptides and the monomers are amino acids.18. The method of claim 15, wherein the substrate is a glass substrate.19. The method of claim 15, wherein the first location is smaller than 0.01 cm2.20. The method of claim 16, wherein the nucleic acids are attached to the substrate via a linker.21. Th e method of claim 18, wherein the protecting group is selected from the group consisting of orthonitrobenzyl derivatives, 6-nitroveratryloxycarbonyl, 2-nitrobenzyloxycarbonyl, α,α-dimethyl-dimethoxybenzyloxycarbonyl, o-hydroxy-α-methyl cinnamoyl derivatives and mixtures thereof.22. A method of synthesizing polymers comprising the sequential steps of: (a) generating a pattern of light and dark regions by selectively irradiating at least a first region of a surface of a substrate by directing light using a mirror, the surface comprising monomers immobilized on the surface, the monomers each coupled to a photoremovable protecting group, with irradiating at least a second region of the surface, to remove the protecting group from the monomers in the first region; (b) simultaneously contacting the first region and the second region of the surface with a first monomer to couple the first monomer to the immobilized monomers in the first region, and not in the second region, the first monomer having the photoremovable protecting group; (c) generating another pattern of light and dark regions by selectively irradiating with light using a mirror at least a part of the first region of the surface and at least a part of the second region to remove the protecting groups in said part of the first region and said part of the second region; (d) simultaneously contacting the first region and the second region of the surface with a second monomer to couple the second monomer to the immobilized monomers on which the protecting groups have been removed in said part of the first region and said part of the second region; and (e) performing additional irradiating with light using a mirror and performing additional monomer contacting and coupling steps so that a matrix array of more than 100 different polymers is formed on the surface, each different polymer synthesized in a region of less than 0.1 cm 2, whereby the different polymers have sequences and locations on the surface defined by patterns of light and dark regions formed during the irradiating steps and the monomers coupled in the contacting steps.23. The method of claim 22, wherein the polymers are nucleic acids and the monomers are nucleotides.24. The method of claim 22, wherein the polymers are peptides and the monomers are amino acids.25. The method of claim 22, wherein the substrate is a glass substrate.26. The method of claim 22, wherein each polymer is synthesized in a region smaller than 0.01 cm2.27. The method of claim 23, wherein the nucleic acids are attached to the substrate via a linker.28. The method of claim 22, wherein the protecting group is selected from the group consisting of orthonitrobenzyl derivatives, 6-nitroveratryloxycarbonyl, 2-nitrobenzyloxycarbonyl, α,α-dimethyl-dimethoxybenzyloxycarbonyl, o-hydroxy-α-methyl cinnamoyl derivatives and mixtures thereof.
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