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NADH electrocatalytic oxidation at glassy carbon paste electrodes modified with Meldola blue adsorbed on alpha-titanium phosphate

Ladiu, Carmen Ioana; Garcia, Ruben; Popescu, Ionel Catalin and Gorton, Lo LU (2007) In Revista de Chimie 58(5). p.465-469
Abstract
Basic electrochemistry of glassy carbon paste electrodes (GCPEs) modified with Meldola Blue adsorbed on crystalline a-titanium phosphate (MB-a-TP) electrodes and their ability to catalyze the NADH oxidation have been investigated. Various ratios of glassy carbon (Sigradur K) to MB-alpha-TP, were used to obtain GCPEs. Cyclic voltammetry (CV) and rotating disc electrode (RDE) measurements, performed in Tris buffer solution, showed that: (1) the MB formal potential vs. pH dependence is linear; (2) the addition of polyethyleneimine (PEI) to the paste electrode has a significant beneficial effect on the electrooxidation of NADH. As a general conclusion, it can be stated that GCPEs modified with MB-alpha-TP and incorporating 2.44% (w/w) PEI... (More)
Basic electrochemistry of glassy carbon paste electrodes (GCPEs) modified with Meldola Blue adsorbed on crystalline a-titanium phosphate (MB-a-TP) electrodes and their ability to catalyze the NADH oxidation have been investigated. Various ratios of glassy carbon (Sigradur K) to MB-alpha-TP, were used to obtain GCPEs. Cyclic voltammetry (CV) and rotating disc electrode (RDE) measurements, performed in Tris buffer solution, showed that: (1) the MB formal potential vs. pH dependence is linear; (2) the addition of polyethyleneimine (PEI) to the paste electrode has a significant beneficial effect on the electrooxidation of NADH. As a general conclusion, it can be stated that GCPEs modified with MB-alpha-TP and incorporating 2.44% (w/w) PEI exhibits the best behavior for NADH electrocatalytic oxidation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
alpha-titanium phosphate, electrocatalysis, NADH oxidation, modified glassy carbon paste electrodes, redox dyes
in
Revista de Chimie
volume
58
issue
5
pages
465 - 469
publisher
Chiminform Data S A
external identifiers
  • wos:000247220300008
  • scopus:34547804164
ISSN
0034-7752
language
English
LU publication?
yes
id
f0f5c42f-4063-4f43-9f5a-d0b50af18a5c (old id 648663)
date added to LUP
2007-12-13 13:54:49
date last changed
2017-01-01 06:38:22
@article{f0f5c42f-4063-4f43-9f5a-d0b50af18a5c,
  abstract     = {Basic electrochemistry of glassy carbon paste electrodes (GCPEs) modified with Meldola Blue adsorbed on crystalline a-titanium phosphate (MB-a-TP) electrodes and their ability to catalyze the NADH oxidation have been investigated. Various ratios of glassy carbon (Sigradur K) to MB-alpha-TP, were used to obtain GCPEs. Cyclic voltammetry (CV) and rotating disc electrode (RDE) measurements, performed in Tris buffer solution, showed that: (1) the MB formal potential vs. pH dependence is linear; (2) the addition of polyethyleneimine (PEI) to the paste electrode has a significant beneficial effect on the electrooxidation of NADH. As a general conclusion, it can be stated that GCPEs modified with MB-alpha-TP and incorporating 2.44% (w/w) PEI exhibits the best behavior for NADH electrocatalytic oxidation.},
  author       = {Ladiu, Carmen Ioana and Garcia, Ruben and Popescu, Ionel Catalin and Gorton, Lo},
  issn         = {0034-7752},
  keyword      = {alpha-titanium phosphate,electrocatalysis,NADH oxidation,modified glassy carbon paste electrodes,redox dyes},
  language     = {eng},
  number       = {5},
  pages        = {465--469},
  publisher    = {Chiminform Data S A},
  series       = {Revista de Chimie},
  title        = {NADH electrocatalytic oxidation at glassy carbon paste electrodes modified with Meldola blue adsorbed on alpha-titanium phosphate},
  volume       = {58},
  year         = {2007},
}