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Poly(o-anisidine)–anion composite films as sensing platform for biological molecules
- Source :
- Sensors and Actuators B: Chemical. 129:558-565
- Publication Year :
- 2008
- Publisher :
- Elsevier BV, 2008.
-
Abstract
- Polyanisidine films doped with two different anions, viz., perchlorate and paratoluene sulphonate anions are prepared electrochemically on a gold substrate. Polyanisidine films doped with the anions aid in retaining the redox conductivity of the polyanisidine films. This behaviour is similar to that of polyaniline films. Unlike polyaniline films, even smaller ions like perchlorate and paratoluene sulphonate are sufficient for retaining the redox conductivity of the film, which may be primarily due to the compact, non-permeant films formed during electropolymerization. The films are found to be suitable for the immobilization of glucose oxidase enzyme and are found to be an efficient sensing matrix for glucose. The films also exhibited catalytic activity towards the oxidation of NADH. These studies indicate the usefulness of polyanisidine–anion films as sensing platform for biomolecules.
- Subjects :
- chemistry.chemical_classification
Materials science
biology
Biomolecule
Inorganic chemistry
Metals and Alloys
Substrate (chemistry)
Conductivity
Condensed Matter Physics
Redox
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Catalysis
chemistry.chemical_compound
Perchlorate
chemistry
Polyaniline
Materials Chemistry
biology.protein
Glucose oxidase
Electrical and Electronic Engineering
Instrumentation
Subjects
Details
- ISSN :
- 09254005
- Volume :
- 129
- Database :
- OpenAIRE
- Journal :
- Sensors and Actuators B: Chemical
- Accession number :
- edsair.doi...........9a743df87d110845ed9fd23f00c3617b