Single‐Stranded DNA‐Mediated Immobilization of Graphene on a Gold Electrode for Sensitive and Selective Determination of Dopamine | Zendy

Wang Lei | Zendy; Qin Xiaoyun | Zendy; Liu Sen | Zendy; Luo Yonglan | Zendy; Asiri Abdullah M. | Zendy; AlYoubi Abdulrahman O. | Zendy; Sun Xuping | Zendy

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Single‐Stranded DNA‐Mediated Immobilization of Graphene on a Gold Electrode for Sensitive and Selective Determination of Dopamine

Author(s) -

Wang Lei,

Qin Xiaoyun,

Liu Sen,

Luo Yonglan,

Asiri Abdullah M.,

AlYoubi Abdulrahman O.,

Sun Xuping

Publication year - 2012

Publication title -

chempluschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.801

H-Index - 61

ISSN - 2192-6506

DOI - 10.1002/cplu.201100009

Subject(s) - graphene , stacking , ascorbic acid , electrode , detection limit , dopamine , dna , nanotechnology , combinatorial chemistry , selectivity , biosensor , materials science , chemistry , biochemistry , chromatography , organic chemistry , biology , catalysis , food science , neuroscience

Chemically modified electrodes : The fast and effective immobilization of graphene on a Au electrode has been demonstrated by exploiting Au–S interactions between Au and a thiolated single‐stranded DNA as well as π–π stacking interactions between graphene and DNA bases (see figure). The resultant modified electrode exhibits high sensitivity and selectivity in dopamine detection with a detection limit of 0.8 n M in the presence of ascorbic acid.

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