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 Concept Videos

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

1.5K
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
1.5K
Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

1.8K
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the composition of a solution.
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
1.8K

You might also read

Related Articles

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

Sort by
Same author

Interface-Engineered S-Scheme Heterojunction of g-C<sub>3</sub>N<sub>4</sub> Quantum Dots and NH<sub>2</sub>-UiO-66 for Superior Visible-Light Photocatalysis.

Inorganic chemistry·2026
Same author

Engineering vanadium extraction residue into Mn-functionalized hydroxyapatite precursor for enhanced antibiotic removal: Molecular-level insights into a waste-to-resource strategy.

Environmental research·2026
Same author

Regulated transformation system (RTS): sddi-mediated programmable shut-off and mode switching of base editors.

Nucleic acids research·2026
Same author

Immunogenicity assessment and epitope mapping of the ASFV proteome by profiling serum antibodies with ASFV antigen phage libraries.

Communications biology·2026
Same author

A novel method for acoustic modeling of cranial bone based on the porosity index.

Scientific reports·2025
Same author

Ni<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> with Pt nanoparticles in-situ decoration: a superior self-powered hydrogen production trifunctional catalyst.

Journal of colloid and interface science·2025
Same journal

Visual detection of uric acid and antibacterial applications in gout wound healing based on His@Fe-SHMP nanozyme.

Biosensors & bioelectronics·2026
Same journal

Multiplexed miRNA imaging using spherical nucleic acids and catalytic hairpin assembly for screening the differential immunotoxicity of deoxynivalenol and its acetylated derivatives in RAW264.7 cells.

Biosensors & bioelectronics·2026
Same journal

Circular RNA targeted theranostic nanoplatform for liver cancer-related gene detection and metastasis regulation in zebrafish using optical sensing and imaging.

Biosensors & bioelectronics·2026
Same journal

Robust and reusable iridium oxide-modified FTO electrodes for long-term organ-on-a-chip monitoring.

Biosensors & bioelectronics·2026
Same journal

Propylene carbonate-PVDF-HFP/MXene-based self-powered biosensor for auxiliary detection of salivary exosomal miRNA-155 in pediatric asthma.

Biosensors & bioelectronics·2026
Same journal

Nanostructured zinc-coordination supraparticles on cellulose fibers: A 3D-Printed μ-FAD integrated smartphone platform for multiplexed salivary metabolic monitoring.

Biosensors & bioelectronics·2026
See all related articles

Related Experiment Video

Updated: Dec 29, 2025

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.7K

Electrochemical dopamine sensor based on superionic conducting potassium ferrite.

Xuejiao Sun1, Le Zhang1, Xinghui Zhang1

  • 1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, PR China.

Biosensors & Bioelectronics
|January 29, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel superionic conductor, potassium ferrite, for electrochemical biosensors. This material enhances dopamine detection with high sensitivity and selectivity, offering a new approach for biosensor development.

Keywords:
DopamineElectrochemical biosensorIonic conductorModified electrodePotassium ferrite

More Related Videos

Gold Nanoparticle Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection
07:34

Gold Nanoparticle Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection

Published on: May 13, 2019

9.9K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.5K

Related Experiment Videos

Last Updated: Dec 29, 2025

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.7K
Gold Nanoparticle Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection
07:34

Gold Nanoparticle Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection

Published on: May 13, 2019

9.9K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.5K

Area of Science:

  • Electrochemistry
  • Materials Science
  • Nanotechnology

Background:

  • Ionic liquid composite electrodes are common in electrochemical biosensors.
  • Biosensing electrodes modified with ionic conducting solids are underexplored.

Purpose of the Study:

  • To prepare a superionic conducting potassium ferrite (K2Fe4O7) for modifying glassy carbon electrodes (GCE).
  • To evaluate the electrocatalytic activity and sensing performance of the modified electrode for dopamine detection.

Main Methods:

  • Hydrothermal synthesis of potassium ferrite (K2Fe4O7).
  • Modification of glassy carbon electrode (GCE) with K2Fe4O7.
  • Electrochemical characterization using cyclic voltammetry and amperometry.
  • Determination of dopamine (DA) in bovine serum samples.

Main Results:

  • The K2Fe4O7/GCE exhibited excellent electrocatalytic activity for dopamine oxidation.
  • Linear response for DA detection in the range of 1 μM–140 μM with a detection limit of 0.22 μM.
  • The sensor demonstrated high selectivity, reproducibility, and stability, with no interference from common biological molecules.
  • Successful application in determining DA concentration in bovine serum.

Conclusions:

  • Potassium ferrite is a promising superionic conducting material for developing advanced electrochemical biosensors.
  • This study introduces a novel strategy for fabricating high-performance biosensors using ionic conducting solid materials.
  • The developed sensor offers a sensitive, selective, and stable platform for dopamine detection in biological samples.