Patent ID: 8017938
Filing Date: 2011-09-13
Classification: B82Y,G01N,Y10S

Abstract:
1. An apparatus comprising: one or more carbon nanotube transistors on a silicon substrate, the one or more carbon nanotube transistors each including a gate electrode, a source electrode, a drain electrode, and a carbon nanotube channel bridging the source electrode and the drain electrode, wherein the drain electrode and the carbon nanotube channel are covered by insulating layer, wherein the insulating layer insulates the drain electrode and the carbon nanotube channel from an electrolyte solution, wherein the gate electrode is configured to contact the electrolyte solution comprising one or more target biological molecules, one or more specific probe materials immobilized on the insulating layer, an electronic circuitry to detect a change in electrical charge by each of the one or more carbon nanotube transistors due to binding of the one or more specific probe materials with the one or more target biological molecules, a detector to detect the change in electrical charge to directly quantify the amount of a bound target biological molecules; and an automated sensing system for determining a relative abundance of the specific target biological molecule based on the change in electrical charge.