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Poly-phenothiazine derivative-modified glassy carbon electrode for NADH electrocatalytic oxidation

Gligor, Delia; Dilgin, Yusuf; Popescu, Ionel Catalin and Gorton, Lo LU (2009) In Electrochimica Acta 54(11). p.3124-3128
Abstract
Electropolymerization of a new phenothiazine derivative (bis-phenothiazin-3-yl methane; BPhM) on glassy carbon (GC) electrode generates a conducting film of poly-BPhM. in stable contact with the electrode surface. The heterogeneous electron-transfer process corresponding to the modified electrode is characterized by a high rate constant (50.4 s(-1), pH 7). The CC/poly-BPhM electrode shows excellent electrocatalytic activity toward NADH oxidation. The rate constant for catalytic NADH oxidation, estimated from rotating disk electrode (RDE) measurements and extrapolated to zero concentration of NADH, was found to be 9.4 x 10(4) M-1 s(-1) (pH 7). The amperometric detection of NADH, at +200 mV vs. SCE, is described by the following... (More)
Electropolymerization of a new phenothiazine derivative (bis-phenothiazin-3-yl methane; BPhM) on glassy carbon (GC) electrode generates a conducting film of poly-BPhM. in stable contact with the electrode surface. The heterogeneous electron-transfer process corresponding to the modified electrode is characterized by a high rate constant (50.4 s(-1), pH 7). The CC/poly-BPhM electrode shows excellent electrocatalytic activity toward NADH oxidation. The rate constant for catalytic NADH oxidation, estimated from rotating disk electrode (RDE) measurements and extrapolated to zero concentration of NADH, was found to be 9.4 x 10(4) M-1 s(-1) (pH 7). The amperometric detection of NADH, at +200 mV vs. SCE, is described by the following electroanalytical parameters: a sensitivity of 1.82 mA M-1, a detection limit of 2 mu M and a linear domain up to 0.1 mM NADH. (c) 2008 Elsevier Ltd. All rights reserved. (Less)
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organization
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Contribution to journal
publication status
published
subject
keywords
Electropolymerization, NADH electrocatalytic oxidation, Poly(phenothiazine derivative)
in
Electrochimica Acta
volume
54
issue
11
pages
3124 - 3128
publisher
Pergamon
external identifiers
  • wos:000265342100027
  • scopus:62249117714
ISSN
0013-4686
DOI
10.1016/j.electacta.2008.11.053
language
English
LU publication?
yes
id
d958dc38-3a09-4431-8681-d7ebe06186f1 (old id 1399566)
date added to LUP
2009-06-15 15:21:48
date last changed
2017-04-30 07:09:41
@article{d958dc38-3a09-4431-8681-d7ebe06186f1,
  abstract     = {Electropolymerization of a new phenothiazine derivative (bis-phenothiazin-3-yl methane; BPhM) on glassy carbon (GC) electrode generates a conducting film of poly-BPhM. in stable contact with the electrode surface. The heterogeneous electron-transfer process corresponding to the modified electrode is characterized by a high rate constant (50.4 s(-1), pH 7). The CC/poly-BPhM electrode shows excellent electrocatalytic activity toward NADH oxidation. The rate constant for catalytic NADH oxidation, estimated from rotating disk electrode (RDE) measurements and extrapolated to zero concentration of NADH, was found to be 9.4 x 10(4) M-1 s(-1) (pH 7). The amperometric detection of NADH, at +200 mV vs. SCE, is described by the following electroanalytical parameters: a sensitivity of 1.82 mA M-1, a detection limit of 2 mu M and a linear domain up to 0.1 mM NADH. (c) 2008 Elsevier Ltd. All rights reserved.},
  author       = {Gligor, Delia and Dilgin, Yusuf and Popescu, Ionel Catalin and Gorton, Lo},
  issn         = {0013-4686},
  keyword      = {Electropolymerization,NADH electrocatalytic oxidation,Poly(phenothiazine derivative)},
  language     = {eng},
  number       = {11},
  pages        = {3124--3128},
  publisher    = {Pergamon},
  series       = {Electrochimica Acta},
  title        = {Poly-phenothiazine derivative-modified glassy carbon electrode for NADH electrocatalytic oxidation},
  url          = {http://dx.doi.org/10.1016/j.electacta.2008.11.053},
  volume       = {54},
  year         = {2009},
}