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738599 
Journal Article 
Single-walled carbon nanotubes chemiresistor aptasensors for small molecules: picomolar level detection of adenosine triphosphate 
Das, BK; Tlili, C; Badhulika, S; Cella, LN; Chen, W; Mulchandani, A 
2011 
Yes 
Chemical Communications
ISSN: 1359-7345
EISSN: 1364-548X 
47 
13 
3793-3795 
English 
21286623 
Here we report single walled-carbon nanotubes (SWNTs)-based chemiresistor aptasensors for highly sensitive and selective detection of weakly or uncharged molecules using the displacement format. As a proof-of-concept we demonstrate the detection of ATP, a small weakly charged molecule, by displacement of the ssDNA anti-ATP aptamer hybridized to a small capture oligonucleotide covalently attached on SWNTs, with picomolar sensitivity and selectivity over GTP. 
Other
• Nanoscale Carbon