Highly sensitive detection of self-aggregated single-walled carbon nanotubes using a DNA-immobilized resonator.
By using DNA linkers, we are able to conjugate self-crosslinked SWNTs which could be detected upon hybridization with a DNA immobilized resonator. The DNA immobilized resonator is able to detect SWNTs with a detection limit of 10 ng ml(-1) which was 2-3 orders of magnitude smaller than the reported SWNT toxicity concentration.
Department of Mechanical Engineering, Korea University, Seoul 136-701, Republic of Korea. nass@korea.ac.kr.
Kuewhan
K
Jang
Jinsung
J
Park
Doyeon
D
Bang
Sangmyung
S
Lee
Juneseok
J
You
Seungjoo
S
Haam
Sungsoo
S
Na
D015374:Biosensing Techniques / Q000379:methods*; D004247:DNA / Q000737:chemistry*; D057230:Limit of Detection; D008958:Models, Molecular; D037742:Nanotubes, Carbon / Q000032:analysis*
D037742:Nanotubes, Carbon; D004247:DNA