NANOPORE ELECTRICAL SENSOR
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United States of America Patent
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Issued Date -
Feb 16, 2012
app pub date -
Sep 14, 2010
filing date -
Oct 22, 2009
priority date (Note) -
Abandoned
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Abstract
A nanopore electrical sensor is provided. The sensor has layered structure, including a substrate (1), the first insulating layer (2), a symmetrical electrode (3) and the second insulating layer (5) from bottom to top in turn. A nanopore (6) is provided in the center of the substrate (1), the first insulating layer (2), the symmetrical electrode (3) and the second insulating layer (5). The thickness of the symmetrical electrode can be controlled between 0.3 nm and 0.7 nm so as to meet the resolution requirements for detecting a single base in a single-stranded DNA. Thus the sensor is suitable for gene sequencing. The present invention overcomes current technical insufficiency to integrate a nanoelectrode with a nanopore and the method to prepare the nanoelectrode is simple.
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