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Composite Material Based on Macroporous Polyaniline and Osmium Redox Complex for Biosensor Development
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Antiochia, Riccarda (author)
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Mazzei, Franco (author)
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- Gorton, Lo (author)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Leech, Donal (author)
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Favero, Gabriele (author)
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(creator_code:org_t)
- 2014-06-11
- 2014
- English.
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In: Electroanalysis. - : Wiley. - 1040-0397. ; 26:7, s. 1623-1630
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http://dx.doi.org/10...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Polyaniline
- Macroporous material
- Osmium redox complex
- Glucose
- biosensor
Publication and Content Type
- art (subject category)
- ref (subject category)
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