Title :
Single-walled carbon nanotube biosensor for detection of E. coli
Author :
So, Hye-Mi ; Park, Dong-Won ; Kim, Yo-Han ; Choi, Sun Young ; Kim, Young Mi ; Kim, Sung Chun ; Kim, Beom Soo ; Lee, Jeong-O
Author_Institution :
Adv. Mater. Div., Korea Res. Inst. of Chem. Technol., Daejeon
Abstract :
Single-walled carbon nanotube biosensor was developed for the detection of Escherichia coli using aptamer-functionalized carbon nanotube field effect transistors. RNA-based E. coli aptamer was chosen by the SELEX process, and immobilized on sidewalls of carbon nanotubes by CDI-Tween 20 linking molecules. The electrical response of the carbon nanotube sensor before and after the binding of E. coli aptamer and E. coli were studied.
Keywords :
biosensors; carbon nanotubes; field effect transistors; E. coli detection; Escherichia coli; RNA-based E. coli aptamer; aptamer-functionalized carbon nanotube field effect transistor; carbon nanotube sensor; ribonucleic acid; single-walled carbon nanotube biosensor; Biosensors; CNTFETs; Carbon nanotubes; DNA; Electrodes; Fabrication; Pollution measurement; Sun; Testing; Threshold voltage; E. coli; aptamer; biosensor; carbon nanotube; field effect transistor;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0540-4
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388766
