Methods for producing ligand arrays
First Claim
1. A method of producing an array of at least two different ligands covalently bonded to a surface of a substrate, said method comprising:
- (a) providing a substrate having a surface displaying photocleavable functional groups by contacting a surface of a substrate with a first silanizing reagent comprising a terminal photocleavable functional group to produce a surface displaying photocleavable functional groups;
(b) cleaving said photocleavable functional groups on said surface to produce a patterned surface displaying feature regions of photocleavage produced functional groups; and
(c) producing by in situ synthesis at least two different polymeric ligands in at least two different feature regions to produce said array;
wherein said method includes a single photocleavage step that occurs prior to said producing step (c) and wherein said photocleavage produced functional groups are hydroxyl groups.
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Abstract
Methods for producing ligand substrates and arrays, e.g., peptide and nucleic acid arrays, as well as the arrays produced thereby, methods for use of the arrays and kits that include the same are provided. In the subject methods, a substrate having a surface displaying photocleavable functional groups that produce surface bound photocleavage produced functional groups upon irradiation is first provided, where the photocleavable groups are then cleaved to produce a surface that displays desired functional groups. The resultant substrates, optionally after an additional functionalization step, are then contacted with ligands or monomeric precursors thereof, e.g., via deposition of each different ligand onto a different region of the surface, resulting in covalent attachment of the contacted ligands to the surface. The subject methods find use in the preparation of a variety of different types of arrays, where the produced arrays find use in a variety of different applications, including both genomic and proteomic applications.
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Citations
20 Claims
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1. A method of producing an array of at least two different ligands covalently bonded to a surface of a substrate, said method comprising:
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(a) providing a substrate having a surface displaying photocleavable functional groups by contacting a surface of a substrate with a first silanizing reagent comprising a terminal photocleavable functional group to produce a surface displaying photocleavable functional groups; (b) cleaving said photocleavable functional groups on said surface to produce a patterned surface displaying feature regions of photocleavage produced functional groups; and (c) producing by in situ synthesis at least two different polymeric ligands in at least two different feature regions to produce said array; wherein said method includes a single photocleavage step that occurs prior to said producing step (c) and wherein said photocleavage produced functional groups are hydroxyl groups. - View Dependent Claims (2, 3)
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4. A method of producing an array of at least two different ligands covalently bonded to a surface of a substrate, said method comprising:
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(a) contacting a surface of a substrate with at least a first silanizing reagent comprising a photocleavable functional group to produce a surface displaying photocleavable functional groups; (b) cleaving said photocleavable functional groups on said surface to produce a patterned surface displaying feature regions of hydroxyl functional groups; and (c) producing by in situ synthesis at least two different ligands in at least two different feature regions produced in step (b) to produce said array; wherein said method includes a single photocleavage step that occurs prior to said producing step (c). - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of producing an array of at least two different ligands covalently bonded to a surface of a substrate, said method comprising:
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(a) contacting a surface of a substrate with a mixture of a first silanizing reagent comprising a terminal photocleavable functional group and a second silanizing agent lacking said terminal photocleavable functional group to produce a surface displaying photocleavable functional groups; (b) cleaving said photocleavable functional groups on said surface to produce a patterned surface displaying feature regions of hydroxyl functional groups; and (c) producing at least two different ligands by in situ synthesis in at least two different feature regions produced in step (b) to produce said array; wherein said method includes a single photocleavage step that occurs prior to said producing step (c).
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Specification