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Ultrasensitive and selective voltammetric aptasensor for dopamine based on a conducting polymer nanocomposite doped with graphene oxide

Abstract:

We describe an aptasensor for the determination of dopamine in human serum and with ultrahigh sensitivity and selectivity. The sensor is based on a nanocomposite consisting of reduced graphene oxide (rGO) and the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT). The PEDOT/rGO interface was prepared by electrochemical polymerization of EDOT using graphene oxide as the dopant which is later electrochemically reduced to form rGO. Subsequent covalent modification of the high surface ar...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s00604-014-1418-z

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Publisher:
Springer Vienna Publisher's website
Journal:
Microchimica Acta Journal website
Volume:
182
Issue:
5
Pages:
1123-1129
Publication date:
2015-04-05
DOI:
EISSN:
1436-5073
ISSN:
0026-3672
URN:
uuid:fe12552e-aecb-4a1a-a35a-7c4334b4abed
Source identifiers:
500674
Local pid:
pubs:500674

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