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

High efficiency electrochemical immuno sensors using 3D comb electrodes.

Nobuo Honda1, Masashi Inaba, Takashi Katagiri

  • 1Department of Electronics, Information and Communication Engineering,Waseda University, Tokyo, Japan. no-honda@fujirebio.co.jp

Biosensors & Bioelectronics
|March 31, 2005
PubMed
Summary

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

Electric current as a stabilizing thermodynamic field in metallic crystals.

Nature communications·2026
Same author

Underwater Suit-Wearing Cyborg Insect Capable of Hours-Long Diving and Terra-Aqua Travel.

Nature communications·2026
Same author

Fully Implanted Miniature Radio Controller Boosts Cyborg Insect Mobility in Challenging Terrains.

Cyborg and bionic systems (Washington, D.C.)·2026
Same author

Electric-Current-Induced Phase Transformation in Cu<sub>6</sub>Sn<sub>5</sub> Below Its Equilibrium Transition Temperature.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Assembly of AuNPs on TMV biotemplates toward SERS substrate development.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2026
Same author

A Case of Tsutsugamushi Mite Infestation With Multiple Larvae Visibly Attached to the Skin.

The Journal of dermatology·2026

A novel 3D electrode enhances electrochemical immunoassays by improving redox reactions. This technique enables highly sensitive detection of clinical biomarkers like alpha-fetoprotein (AFP).

Area of Science:

  • Electrochemistry
  • Biosensors
  • Nanotechnology

Background:

  • Electrochemical immunoassays require high sensitivity for clinical diagnostics.
  • Micro-fabricated electrodes offer potential for enhanced assay performance.
  • Optimizing electrode structure is key to improving signal amplification.

Purpose of the Study:

  • To develop a micro-fabricated three-dimensional (3D) electrode for highly sensitive electrochemical immunoassays.
  • To investigate the performance of the 3D electrode in enzyme immunoassays.
  • To demonstrate the applicability of the developed sensor for clinical biomarker detection.

Main Methods:

  • Fabrication of a micro-electrode array with 3D structure (10 µm width, 30 µm height, 20 µm spacing).
  • Application of the 3D electrode in an enzyme immunoassay using p-aminophenylphosphate (PAPP) as a redox species.

Related Experiment Videos

  • Testing the sensor's performance for alpha-fetoprotein (AFP) detection.

    • Main Results:

    • The 3D electrode structure significantly enhanced electrochemical reactions.
    • Achieved a near 100% trap ratio for redox species, improving assay sensitivity.
    • Successfully demonstrated the detection of alpha-fetoprotein (AFP) in the range of 6 to 500 ng/mL.

    Conclusions:

    • Micro-fabricated 3D electrodes are effective for highly sensitive electrochemical immunoassays.
    • The developed sensor shows promise for sensitive and reliable clinical diagnostics.
    • This approach offers a new platform for advanced biosensing applications.