TY - JOUR
T1 - Reduced working electrode based on fullerene C60 nanotubes@DNA
T2 - Characterization and application
AU - Zhang, Xuzhi
AU - Qu, Yongtao
AU - Piao, Guangzhe
AU - Zhao, Jian
AU - Jiao, Kui
PY - 2010/11/25
Y1 - 2010/11/25
N2 - Fullerene C60 nanotubes (FNTs) were functionalized with sequence-specific single-stranded DNA to form a kind of complexes (FNT@DNA), which could be brought efficiently into aqueous solution. The dispersed FNT@DNA could form a layer of stable film on the surface of glassy carbon electrode (GCE). In the Britton-Robinson buffer solution of pH ≥7.0, the FNT@DNA modified on the GCE presented an irreversible two-step six-electron transfer reduction reaction. The reduced modified electrode had a rather wide electrochemical window and could be used as a functionalized working electrode, which showed a good enrichment capability towards the positively charged molecules. The selective detection of dopamine in the presence of a high amount of ascorbic acid could be realized at the reduced FNT@DNA-modified GCE in neutral buffer solution.
AB - Fullerene C60 nanotubes (FNTs) were functionalized with sequence-specific single-stranded DNA to form a kind of complexes (FNT@DNA), which could be brought efficiently into aqueous solution. The dispersed FNT@DNA could form a layer of stable film on the surface of glassy carbon electrode (GCE). In the Britton-Robinson buffer solution of pH ≥7.0, the FNT@DNA modified on the GCE presented an irreversible two-step six-electron transfer reduction reaction. The reduced modified electrode had a rather wide electrochemical window and could be used as a functionalized working electrode, which showed a good enrichment capability towards the positively charged molecules. The selective detection of dopamine in the presence of a high amount of ascorbic acid could be realized at the reduced FNT@DNA-modified GCE in neutral buffer solution.
KW - Ascorbic acid
KW - Dopamine
KW - Fullerene C nanotubes@DNA
KW - Modified electrode
KW - Reduced working electrode
UR - http://www.scopus.com/inward/record.url?scp=77957881763&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2010.07.020
DO - 10.1016/j.mseb.2010.07.020
M3 - Article
AN - SCOPUS:77957881763
SN - 0921-5107
VL - 175
SP - 159
EP - 163
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
IS - 2
ER -