Invention Grant
- Patent Title: Nanopore device and methods of electrical array addressing and sensing
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Application No.: US17378889Application Date: 2021-07-19
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Publication No.: US11747320B2Publication Date: 2023-09-05
- Inventor: Kyung Joon Han , Jungkee Yoon
- Applicant: PALOGEN, INC.
- Applicant Address: US CA Palo Alto
- Assignee: PALOGEN, INC.
- Current Assignee: PALOGEN, INC.
- Current Assignee Address: US CA Palo Alto
- Agency: Vista IP Law Group LLP
- Main IPC: G01N33/487
- IPC: G01N33/487 ; C12Q1/6869 ; C12Q1/6874 ; G01N27/414 ; G01N27/447 ; B82Y15/00 ; B82Y40/00

Abstract:
A method of manufacturing and using a nanofluidic NAND transistor sensor array scheme including a plurality of nanopore channel pillars, a plurality of respective fluidic channels, a plurality of gate electrodes, a top chamber, and a bottom chamber includes placing a sensor substrate in an electrolyte solution comprising biomolecules and DNA. The method also includes placing first and second electrodes in the electrolyte solution (Vpp and Vss of the nanofluidic NAND transistor); forming the nanopore channel pillars; placing the gate electrodes and gate insulators in respective walls of the nanopore channel pillars; applying an electrophoretic bias in the first and second electrodes; applying a bias in the gate electrodes; detecting a change in an electrode current in the electrolyte solution caused by a change in a gate voltage; and detecting a change in a surface charge in nanopore channel electrodes in the respective fluidic channels.
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