Multiplex microarray of serially deposited biomolecules on a microarray
First Claim
1. A method of making a multiplex microarray of serially attached different biomolecules on a microarray, comprising:
- (a) blocking a microarray with a blocking protein, wherein the microarray is a device having an array of addressable microelectrodes on a surface of the device;
(b) electropolymerizing a monomer on one or more microelectrodes of the microarray using an electropolymerizing solution with one or more electropolymerizing parameters to form a first thickness on at least a first microelectrode and electropolymerizing the monomer with one or more different electropolymerizing parameters to form at least a second thickness on at least a second microelectrode, where the first microelectrode and the second microelectrode are selected from the one or more microelectrodes, where the first thickness is different than the second thickness, where the one or more electropolymerizing parameters are selected from the group consisting of potential, current and time of electropolymerizing, where the electropolymerizing solution containing the monomer does not contain any biomolecules;
(c) exposing the microarray to a biomolecular solution containing a biomolecule for attachment to the first thickness on the one or more electrodes;
(d) blocking the microarray with a blocking protein; and
(e) exposing the microarray to a different biomolecular solution containing a different biomolecule for attachment to the second thickness on the one or more electrodes, where one or both the first thickness and the second thickness facilitates detection of one or both the biomolecule and the different biomolecule.
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Abstract
Disclosed herein is a multiplex microarray having serially attached non-functionalized biomolecules attached to a polymer coating covering each electrode of an array of electrodes for assays and a method of making the multiplex microarray. The method comprises serially blocking the electrodes of the microarray with a blocking protein, electropolymerizing pyrrole or a functionalized pyrrole on the electrodes where the biomolecule is not present during polymerization, exposing the microarray to a biomolecular solution containing a non-functionalized biomolecule for attachment to the polymer coating, and then repeating the steps to form the multiplex microarray.
60 Citations
20 Claims
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1. A method of making a multiplex microarray of serially attached different biomolecules on a microarray, comprising:
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(a) blocking a microarray with a blocking protein, wherein the microarray is a device having an array of addressable microelectrodes on a surface of the device; (b) electropolymerizing a monomer on one or more microelectrodes of the microarray using an electropolymerizing solution with one or more electropolymerizing parameters to form a first thickness on at least a first microelectrode and electropolymerizing the monomer with one or more different electropolymerizing parameters to form at least a second thickness on at least a second microelectrode, where the first microelectrode and the second microelectrode are selected from the one or more microelectrodes, where the first thickness is different than the second thickness, where the one or more electropolymerizing parameters are selected from the group consisting of potential, current and time of electropolymerizing, where the electropolymerizing solution containing the monomer does not contain any biomolecules; (c) exposing the microarray to a biomolecular solution containing a biomolecule for attachment to the first thickness on the one or more electrodes; (d) blocking the microarray with a blocking protein; and (e) exposing the microarray to a different biomolecular solution containing a different biomolecule for attachment to the second thickness on the one or more electrodes, where one or both the first thickness and the second thickness facilitates detection of one or both the biomolecule and the different biomolecule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18, 19, 20)
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10. A method of making a multiplex microarray of serially attached different oligonucleotides on a microarray, comprising:
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(a) blocking a microarray with a blocking protein, wherein the microarray is a device having an array of addressable microelectrodes on a surface of the device; (b) electropolymerizing a monomer on one or more microelectrodes of the microarray using an electropolymerizing solution with one or more electropolymerizing parameters to form a first thickness on a first microelectrode and electropolymerizing the monomer with one or more different electropolymerizing parameters to form at least a second thickness on a second microelectrode, where the first microelectrode and the second microelectrode are selected from the one or more microelectrodes, where the first thickness is different than the second thickness, where the one or more electropolymerizing parameters are selected from the group consisting of potential, current and time of electropolymerizing, where the electropolymerizing solution containing the monomer does not contain any oligonucleotides; (c) exposing the microarray with an oligonucleotide solution containing an oligonucleotide for attachment to the first thickness on the one or more electrodes; (d) blocking the microarray with a blocking protein; and (e) exposing the microarray to a different oligonucleotide solution containing a different oligonucleotide for attachment to the second thickness on the one or more electrodes, where one or both the first thickness and the second thickness facilitates detection of one or both the oligonucleotide and the different oligonucleotide. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A microarray for multiplex oligonucleotide hybridization assay, comprising:
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(a) a microarray having on a surface an array of addressable microelectrodes having an exposed surface; (b) an electropolymerized polymer attached to the exposed surface of the array of addressable microelectrodes, where the electropolymerized polymer attached to a first microelectrode has a first thickness and the electropolymerized polymer attached to a second microelectrode has a second thickness, where the first thickness is thicker than the second thickness; and (c) a first preformed oligonucleotide serially-attached to the first thickness and a second preformed oligonucleotide serially attached to the second thickness, wherein the different preformed oligonucleotides are not synthesized in situ on the microarray. - View Dependent Claims (17)
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Specification