Tuning the chemical selectivity of SWNT-FETs for detection of heavy-metal ions |
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| Authors: | Forzani Erica S Li Xiulan Zhang Peiming Tao Nongjian Zhang Ruth Amlani Islamshah Tsui Raymond Nagahara Larry A |
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| Affiliation: | Center for Solid State Electronics Research and Department of Electrical Engineering, Arizona State University, Tempe, AZ 85287, USA. |
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| Abstract: | ![]()
A method to functionalize single-walled carbon nanotubes (SWNTs) in a field-effect transistor (FET) device for the selective detection of heavy-metal ions is presented. In this method, peptide-modified polymers were electrochemically deposited onto SWNTs and the selective detection of metal ions was demonstrated by choosing appropriate peptide sequences. The signal transduction mechanism of the peptide-modified SWNT-FETs has also been studied. |
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