- Link:
- http://hdl.handle.net/10220/8143
- Collection:
-
- Subject
- DRNTU::Engineering::Chemical engineering::Biochemical
engineering.
- Creators:
- Wong, Lai Peng. Toh, Chee-Seng. Wei, Yanyan.
- Description
- A unique Prussian blue nanotubes sensor using a
two-compartment cell derives the current signal from the chemical
energy of the hydrogen peroxide analyte, without input of
electrical potentials, is described. The Prussian blue reduces
hydrogen peroxide and is itself reduced by electron flow from the
counter reaction at the auxiliary electrode. The concentrations of
the Prussian blue (PB) and Everitt’s salt (ES) forms of the
Prussian blue are maintained at steady-state values, by the
hydrogen peroxide reduction and the galvanic cell reaction. This
strategy gives low detection limit of 0.1 μM H2O2 with linear range
up to 80 μM and is further demonstrated in a model glucose
biosensor. The simple design to reduce energy usage opens up the
study of amperometricsensor development by selecting anodic and
cathodic reactions with suitable thermodynamic potentials with
consideration of reactions at the sensing and auxiliary electrodes
modified with appropriate mediators or enzymes.
- Type
- Journal Article
- Language
- en
- Relation
- Journal of electroanalytical chemistry
- Rights
- © 2012 Elsevier.
- Rights
- © 2012 Elsevier. This is the author created version of a
work that has been peer reviewed and accepted for publication by
Journal of Electroanalytical Chemistry, Elsevier. It incorporates
referee’s comments but changes resulting from the publishing
process, such as copyediting, structural formatting, may not be
reflected in this document. The published version is available at:
[DOI:
http://dx.doi.org/10.1016/j.jelechem.2012.02.017].
- Access:
- Instructions in case access is denied
Site powered by:
