Room temperature amine sensors enabled by sidewall functionalization of single-walled carbon nanotubes.

ABSTRACT: A new series of sidewall modified single-walled carbon nanotubes (SWCNTs) with perfluorophenyl molecules bearing carboxylic acid or methyl ester moieties are herein reported. Pristine and functionalized SWCNTs (p-SWCNTs and f-SWCNTs, respectively) were characterized by X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and scanning electron microscopy (SEM). The nitrene-based functionalization provided intact SWCNTs with methyl 4-azido-2,3,5,6-tetrafluorobenzoate (SWCNT-N-C₆F₄CO₂CH₃) and 4-azido-2,3,5,6-tetrafluorobenzoic acid (SWCNT-N-C₆F₄CO₂H) attached every 213 and 109 carbon atoms, respectively. Notably, SWCNT-N-C₆F₄CO₂H was sensitive in terms of the percentage of condu

SUBMITTER: Paoletti C 

PROVIDER: S-EPMC6390973 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature