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

Electrode coatings based on chitosan scaffolds.

J Cruz1, M Kawasaki, W Gorski

  • 1Division of Earth and Physical Sciences, University of Texas at San Antonio 78249-0663, USA.

Analytical Chemistry
|March 4, 2000
PubMed
Summary

Chemically modified chitosan films exhibit fast ion transport and enhanced anion selectivity, making them promising for developing sensitive and stable electrochemical sensors.

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

Analysis of UGT1A1 germline variants in patients with advanced breast cancer treated with trastuzumab-deruxtecan: results from the PROCURE Project.

ESMO open·2026
Same author

Correction: CAP in the ICU: are they all in fact CAP?

Intensive care medicine·2026
Same author

CAP in the ICU: are they all in fact CAP?

Intensive care medicine·2025
Same author

Compositional analysis of alternative protein blends using near and mid-infrared spectroscopy coupled with conventional and machine learning algorithms.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2025
Same author

A giant Brunner's gland hamartoma: a rare cause of upper gastrointestinal bleeding.

Acta gastro-enterologica Belgica·2024
Same author

Recurrent cholangitis caused by a giant duodenal diverticulum (Lemmel syndrome) - effective treatment with endoscopic sphincterotomy.

Acta gastro-enterologica Belgica·2024

Area of Science:

  • Electrochemistry
  • Materials Science
  • Biopolymer Science

Background:

  • Chitosan (CHIT) is a versatile biopolymer with potential applications in electrochemical sensing.
  • Developing modified chitosan films with tailored ion-transport and ion-exchange properties is crucial for advanced sensor design.

Purpose of the Study:

  • To investigate the ion-transport and ion-exchange characteristics of chitosan films modified with Lucifer Yellow VS dye (LYVS) and cross-linked with glutaric dialdehyde (GDI).
  • To evaluate the potential of these modified chitosan films as coatings for fast, selective, and reversible electrochemical sensors.

Main Methods:

  • Fabrication of thin films of chitosan, chitosan-LYVS, and chitosan-LYVS-GDI on glassy carbon electrodes.
  • Electrochemical characterization using cyclic voltammetry and rotating disk electrode techniques.
  • Analysis of ion transport and permselectivity using flow injection analysis.

Main Results:

  • Chitosan matrix facilitated rapid ion transport, showing aqueous-like diffusion coefficients for Ru(NH3)6(3)+ and dopamine.
  • Incorporation of anionic LYVS dye imparted permselectivity against anions like Fe(CN)6(4)- and ascorbate.
  • Cross-linking with GDI enhanced both the permselectivity and stability of the chitosan-LYVS films.
  • CHIT-LYVS-GDI films demonstrated a unique combination of high permselectivity and fast ion transport via a mixed-transport mechanism.

Conclusions:

  • Chemically modified chitosan films, particularly CHIT-LYVS-GDI, offer a promising platform for electrochemical sensor development.
  • The enhanced properties suggest suitability for creating fast, selective, and stable sensors.
  • The findings highlight the potential of tailored biopolymer coatings in advanced electrochemical applications.

Related Experiment Videos