Reusable detection surfaces and methods of using same
First Claim
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1. A method comprising:
- introducing a sample including a plurality of magnetic particles and an analyte into a fluid chamber including a detection surface comprising an acoustic device having a vibrating membrane and a first capture agent linked to the detection surface, wherein the sample includes at least one magnetic particle, of the plurality of magnetic particles, functionalized with a second capture agent capable of binding the analyte bound to a third capture agent coupled to at least one non-analyte tag molecule;
binding the non-analyte tag molecule to the first capture agent and binding the second capture agent to the analyte;
monitoring, using the detection surface, a first signal output generated by interaction of the vibrating membrane and the plurality of magnetic particles; and
generating a flow transient over the detection surface for removing the non-analyte tag molecule from the first capture agent;
removing the non-analyte tag molecule from the first capture agent while the first capture agent remains linked to the detection surface so that the first capture agent is reusable.
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Abstract
The technology provided herein generally relates to reusable detection surfaces and methods for reusing a detection surface after using the detection surface in an assay for an analyte.
184 Citations
14 Claims
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1. A method comprising:
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introducing a sample including a plurality of magnetic particles and an analyte into a fluid chamber including a detection surface comprising an acoustic device having a vibrating membrane and a first capture agent linked to the detection surface, wherein the sample includes at least one magnetic particle, of the plurality of magnetic particles, functionalized with a second capture agent capable of binding the analyte bound to a third capture agent coupled to at least one non-analyte tag molecule; binding the non-analyte tag molecule to the first capture agent and binding the second capture agent to the analyte; monitoring, using the detection surface, a first signal output generated by interaction of the vibrating membrane and the plurality of magnetic particles; and generating a flow transient over the detection surface for removing the non-analyte tag molecule from the first capture agent; removing the non-analyte tag molecule from the first capture agent while the first capture agent remains linked to the detection surface so that the first capture agent is reusable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification