Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Catechol sensor using poly(aniline-co-o-aminophenol) as an electron transfer mediator.

Shaolin Mu1

  • 1Department of Chemistry, Yangzhou University, Yangzhou 225002, China.

Biosensors & Bioelectronics
|June 28, 2005
PubMed
Summary

Poly(aniline-co-o-aminophenol) acts as an effective electrocatalyst for catechol oxidation. This novel copolymer sensor offers sensitive and selective detection of catechol concentrations.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Xanthine biosensor based on the direct oxidation of xanthine at an electrogenerated oligomer film.

Biosensors & bioelectronics·2013
Same author

Electrochemical oxidation of pyrogallol: formation and characterization of long-lived oxygen radicals and application to assess the radical scavenging abilities of antioxidants.

The journal of physical chemistry. B·2012
Same author

Influence of potential and temperature on the ESR spectra of polyaniline synthesized using the interface polymerization.

The journal of physical chemistry. B·2010
Same author

Spectral characteristics of polyaniline nanostructures synthesized by using cyclic voltammetry at different scan rates.

The journal of physical chemistry. B·2008
Same author

Synthesis and electronic properties of poly(aniline-co-2-amino-4-hydroxybenzenesulfonic acid).

The journal of physical chemistry. B·2008
Same author

ESR studies of poly(aniline-co-m-aminophenol) in the solid state and nonaqueous solution.

The journal of physical chemistry. B·2007

Area of Science:

  • Electrochemistry
  • Polymer Science
  • Analytical Chemistry

Background:

  • Electrochemical oxidation of catechol is crucial in various chemical processes.
  • Developing efficient electron transfer mediators is key for electrocatalysis.
  • Poly(aniline-co-o-aminophenol) exhibits reversible redox properties across a wide pH range.

Purpose of the Study:

  • To investigate the use of poly(aniline-co-o-aminophenol) as an electron transfer mediator for catechol electrochemical oxidation.
  • To develop a sensitive and selective sensor for catechol determination based on this copolymer.
  • To understand the role of the copolymer's functional groups in the electrocatalytic process.

Main Methods:

  • Electrochemical oxidation studies of catechol using a poly(aniline-co-o-aminophenol) electrode.

Related Experiment Videos

  • Comparison of the copolymer electrode with a platinum electrode.
  • Determination of activation energy for catechol oxidation.
  • Fabrication and characterization of a copolymer-based electrochemical sensor.
  • Evaluation of sensor performance including response time, stability, and linear range.

    • Main Results:

    • The copolymer electrode demonstrated lower anodic peak potential and activation energy for catechol oxidation compared to platinum.
    • The hydroxyl (-OH) group on the copolymer chain significantly facilitates electron transfer.
    • The developed sensor exhibited a fast response (10s) and good operational stability at 0.55 V and pH 5.0.
    • A linear response range of 5-80 microM catechol with a high correlation coefficient (0.997) was achieved.
    • Selective determination of catechol was possible by controlling the applied potential, avoiding interference from phenol and resorcinol.

    Conclusions:

    • Poly(aniline-co-o-aminophenol) is an effective electrocatalyst for catechol oxidation.
    • The copolymer serves as a promising material for developing sensitive and selective electrochemical sensors for catechol.
    • The sensor's selectivity can be enhanced by controlling the applied potential, mitigating interference from similar phenolic compounds.