Fabrication of a nanochannel for DNA sequencing using electrical plating to achieve tunneling electrode gap
First Claim
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1. A DNA sequencing device, comprising:
- a nanopore or nanochannel structure having a width in the range of about 5 nm to about 20 nm; and
a nanoelectrode comprising;
electrode members having free ends exposed within the nanopore or nanochannel structure, the free ends comprising plated portions defining an electrode gap in the range of about 0.3 nm to about 2.0 nm.
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Abstract
A DNA sequencing device, and related methods, include a nanopore or nanochannel structure, and a nanoelectrode. The nanoelectrode includes electrode members having free ends exposed within the nanopore or nanochannel structure, an electrode gap defined between of the free ends, and plated portions formed on the free ends to provide a reduced sized for the electrode gap.
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Citations
11 Claims
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1. A DNA sequencing device, comprising:
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a nanopore or nanochannel structure having a width in the range of about 5 nm to about 20 nm; and a nanoelectrode comprising; electrode members having free ends exposed within the nanopore or nanochannel structure, the free ends comprising plated portions defining an electrode gap in the range of about 0.3 nm to about 2.0 nm. - View Dependent Claims (2, 3, 4, 5)
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6. A method of DNA sequencing, comprising:
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providing a DNA sequencing device having a nanopore or nanochannel structure having a width of about 5 nm to about 20 nm, and a nanoelectrode, the nanoelectrode having first and second electrode members with free ends exposed within the nanopore or nanochannel structure, the free ends comprising plated portions, the plated portions defining an electrode gap of about 0.3 nm to about 2.0 nm; drawing a DNA strand through the nanopore or nanochannel and the electrode gap; detecting, with the nanoelectrode, electronic signals associated with separate nucleotides of the DNA strand; determining an order of the nucleotides based on the detected electronic signals. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification