DocumentCode
2125771
Title
Nitrophenol detection using suspended SWNT films for environmental monitoring
Author
An, Taechang ; Kim, In-tae ; Lim, Geunbae
Author_Institution
Dept. of Mech. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea
fYear
2010
fDate
1-4 Nov. 2010
Firstpage
1514
Lastpage
1517
Abstract
Suspended addressable SWNT film arrays between cantilever electrodes were successfully developed for environmental monitoring. Structurally suspended SWNT films from substrate floor made possible rapid and highly sensitive detection of target molecules with increased convectional and diffusional fluxes of the molecules and with a large binding surface area. SWNT film FET resulted in a real-time, label-free, and electrical detection of nitrophenol to the concentration of ca. 1μM with a step-wise rapid response time of several seconds.
Keywords
cantilevers; carbon nanotubes; chemical sensors; electrochemical electrodes; field effect transistors; nanosensors; nanotube devices; substrates; thin film sensors; FET; cantilever electrode; diffusional flux; electrical detection; environmental monitoring; highly sensitive detection; label free detection; large binding surface area; nitrophenol detection; step-wise rapid response time; substrate floor; suspended SWNT film array; target molecule;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2010 IEEE
Conference_Location
Kona, HI
ISSN
1930-0395
Print_ISBN
978-1-4244-8170-5
Electronic_ISBN
1930-0395
Type
conf
DOI
10.1109/ICSENS.2010.5690334
Filename
5690334
Link To Document