Journal
SMALL
Volume 2, Issue 11, Pages 1283-1291Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200600185
Keywords
carbon nanotubes; field-effect transistors; heavy metals; ions; sensors
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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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