Carbon nanotube-based dual-mode biosensor for electrical and surface plasmon resonance measurements.
We have developed carbon nanotube-based dual-mode biosensors with a metal semiconductor field effect transistor structure on a quartz substrate. DNA hybridization occurring on the Au top gate can be detected by simultaneously measuring the change in the electrical conductance and the surface plasmon resonance (SPR). Since electrical and SPR measurements offer high sensitivity and reliability, respectively, this dual-mode biosensor is expected to provide both of these features.
Oh
Jeseung
J
Yonsei University, Seoul 120-749, Korea.
Chang
Young Wook
YW
Kim
Hyung Joon
HJ
Yoo
Seunghwan
S
Kim
Dong Jun
DJ
Im
Seongil
S
Park
Young June
YJ
Kim
Donghyun
D
Yoo
Kyung-Hwa
KH