发明申请
US20120298531A1 Dual FET Sensor for Sensing Biomolecules & Charged Ions in an Electrolyte
审中-公开
用于感应电解质中的生物分子和带电离子的双FET传感器
- 专利标题: Dual FET Sensor for Sensing Biomolecules & Charged Ions in an Electrolyte
- 专利标题(中): 用于感应电解质中的生物分子和带电离子的双FET传感器
-
申请号: US13571389申请日: 2012-08-10
-
公开(公告)号: US20120298531A1公开(公告)日: 2012-11-29
- 发明人: Donald Dorman , Tak Ning , Sufi Zafar
- 申请人: Donald Dorman , Tak Ning , Sufi Zafar
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G01N27/414
- IPC分类号: G01N27/414
摘要:
A method for operating a sensor for biomolecules or charged ions, the sensor comprising a first field effect transistor (FET) and a second FET, wherein the first FET and the second FET comprise a shared node includes placing an electrolyte containing the biomolecules or charged ions on a sensing surface of the sensor, the electrolyte comprising a gate of the second FET; applying an inversion voltage to a gate of the first FET; making a first electrical connection to an unshared node of the first FET; making a second electrical connection to unshared node of the second FET; determining a change in a drain current flowing between the unshared node of the first FET and the unshared node of the second FET; and determining an amount of biomolecules or charged ions contained in the electrolyte based on the determined change in the drain current.