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Composite Material Based on Macroporous Polyaniline and Osmium Redox Complex for Biosensor Development

Antiochia, Riccarda ; Mazzei, Franco ; Gorton, Lo LU ; Leech, Donal and Favero, Gabriele (2014) In Electroanalysis 26(7). p.1623-1630
Abstract
Here the feasibility of layers based on the conducting polymer polyaniline (PANI) as component of glucose biosensors using glucose oxidase (GOx) as enzyme and [Os(bpy)(2)(4-aminomethylpyridine)Cl]PF6 (OsCmplx) as electrochemical mediator, is evaluated. Particularly, PANI was employed to obtain a nanostructured macroporous material (m-PANI) around polystyrene nanoparticles taken as template and the mediator was co-immobilized during the polymerizing procedure. The GOx biosensor based on OsCmplx modified m-PANI provides a linear response to glucose concentration in the range 5 up to 65 mM with a sensitivity of 3.54 mu A/mM/cm(2) (on a projected geometric area=0.07 cm(2)), an LOD of 0.8 mM and a good precision (%RSD <= 7, n=5); the... (More)
Here the feasibility of layers based on the conducting polymer polyaniline (PANI) as component of glucose biosensors using glucose oxidase (GOx) as enzyme and [Os(bpy)(2)(4-aminomethylpyridine)Cl]PF6 (OsCmplx) as electrochemical mediator, is evaluated. Particularly, PANI was employed to obtain a nanostructured macroporous material (m-PANI) around polystyrene nanoparticles taken as template and the mediator was co-immobilized during the polymerizing procedure. The GOx biosensor based on OsCmplx modified m-PANI provides a linear response to glucose concentration in the range 5 up to 65 mM with a sensitivity of 3.54 mu A/mM/cm(2) (on a projected geometric area=0.07 cm(2)), an LOD of 0.8 mM and a good precision (%RSD <= 7, n=5); the biosensor is stable showing a decrease of 10% to the value of the sensitivity after 15 days of use and of about 50% after 40 days. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Polyaniline, Macroporous material, Osmium redox complex, Glucose, biosensor
in
Electroanalysis
volume
26
issue
7
pages
1623 - 1630
publisher
John Wiley & Sons Inc.
external identifiers
  • wos:000339483200024
  • scopus:84904071488
ISSN
1040-0397
DOI
10.1002/elan.201400021
language
English
LU publication?
yes
id
65723311-7b7d-4ad7-a874-ec4d604c4b5e (old id 4590737)
date added to LUP
2016-04-01 14:37:08
date last changed
2022-01-28 01:36:02
@article{65723311-7b7d-4ad7-a874-ec4d604c4b5e,
  abstract     = {{Here the feasibility of layers based on the conducting polymer polyaniline (PANI) as component of glucose biosensors using glucose oxidase (GOx) as enzyme and [Os(bpy)(2)(4-aminomethylpyridine)Cl]PF6 (OsCmplx) as electrochemical mediator, is evaluated. Particularly, PANI was employed to obtain a nanostructured macroporous material (m-PANI) around polystyrene nanoparticles taken as template and the mediator was co-immobilized during the polymerizing procedure. The GOx biosensor based on OsCmplx modified m-PANI provides a linear response to glucose concentration in the range 5 up to 65 mM with a sensitivity of 3.54 mu A/mM/cm(2) (on a projected geometric area=0.07 cm(2)), an LOD of 0.8 mM and a good precision (%RSD &lt;= 7, n=5); the biosensor is stable showing a decrease of 10% to the value of the sensitivity after 15 days of use and of about 50% after 40 days.}},
  author       = {{Antiochia, Riccarda and Mazzei, Franco and Gorton, Lo and Leech, Donal and Favero, Gabriele}},
  issn         = {{1040-0397}},
  keywords     = {{Polyaniline; Macroporous material; Osmium redox complex; Glucose; biosensor}},
  language     = {{eng}},
  number       = {{7}},
  pages        = {{1623--1630}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Electroanalysis}},
  title        = {{Composite Material Based on Macroporous Polyaniline and Osmium Redox Complex for Biosensor Development}},
  url          = {{http://dx.doi.org/10.1002/elan.201400021}},
  doi          = {{10.1002/elan.201400021}},
  volume       = {{26}},
  year         = {{2014}},
}