Nanosensors and related technologies
First Claim
1. An article, comprising:
- a nanoscale wire comprising a first portion and a second portion laterally defined along the length of the nanoscale wire, the first portion consisting essentially of a single crystal of a transition metal silicide compound, the compound being stoichiometric, and the second portion comprising a semiconductor, having a length of less than 100 nm, and having immobilized relative thereto a binding partner of an analyte, wherein the first portion is free of the binding partner.
2 Assignments
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Accused Products
Abstract
The present invention generally relates to nanoscale wire devices and methods for use in determining nucleic acids or other analytes suspected to be present in a sample. For example, a nanoscale wire device can be used to detect single base mismatches within a nucleic acid (e.g., by determining association and/or dissociation rates). In one aspect, dynamical information such as a binding constant, an association rate, and/or a dissociation rate, can be determined between an analyte and a binding partner immobilized relative to a nanoscale wire. In some cases, the nanoscale wire includes a first portion comprising a metal-semiconductor compound, and a second portion that does not include a metal-semiconductor compound. The binding partner, in some embodiments, is immobilized relative to at least the second portion of the nanoscale wire, and the size of the second portion of the nanoscale wire may be minimized and/or controlled in some instances.
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Citations
15 Claims
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1. An article, comprising:
a nanoscale wire comprising a first portion and a second portion laterally defined along the length of the nanoscale wire, the first portion consisting essentially of a single crystal of a transition metal silicide compound, the compound being stoichiometric, and the second portion comprising a semiconductor, having a length of less than 100 nm, and having immobilized relative thereto a binding partner of an analyte, wherein the first portion is free of the binding partner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An article, comprising:
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a sample exposure region able to hold a solution containing an analyte; a nanoscale wire positioned at least partially adjacent to or within the sample exposure region, the nanoscale wire comprising a first portion and a second portion, each laterally defined along the nanoscale wire, the second portion comprising a semiconductor and having immobilized relative thereto a binding partner able to bind to the analyte contained in the solution, and the first portion being free of the binding partner and comprising a conductive transition metal silicide compound, the compound being stoichiometric, wherein the binding partner is able to bind one or more molecules of the analyte, wherein the analyte, when bound to the binding partner, has a Debye screening length within the solution that is greater than the greatest dimension of the second portion of the nanoscale wire. - View Dependent Claims (12, 13, 14, 15)
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Specification