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 Video

Updated: Jun 3, 2026

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
07:30

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

Published on: March 7, 2018

Electrochemical sensing using quantum-sized gold nanoparticles.

S Senthil Kumar, Kyuju Kwak, Dongil Lee

    Analytical Chemistry
    |April 5, 2011
    PubMed
    Summary
    This summary is machine-generated.

    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

    Ultrafast Intersystem Crossing in Icosahedral-Core Metal Nanoclusters.

    Journal of the American Chemical Society·2026
    Same author

    Stepwise Ligand-Exchange Strategy for the High-Yield Synthesis of Water-Soluble, Metal-Doped MAg<sub>24</sub> Nanoclusters.

    Journal of the American Chemical Society·2025
    Same author

    Performance enhancement of photovoltaic thermal collectors using water based MnO<sub>2</sub> nanofluids and machine learning models.

    Scientific reports·2025
    Same author

    Bacterial concrete: the future of self-healing and sustainable infrastructure.

    MethodsX·2025
    Same author

    Effective enrichment of glycated proteome using ultrasmall gold nanoclusters functionalized with boronic acid.

    Nanoscale·2024
    Same author

    Boosting the Electroreduction of CO<sub>2</sub> to CO by Ligand Engineering of Gold Nanoclusters.

    Angewandte Chemie (International ed. in English)·2024
    Same journal

    Biodegradable Self-Powered Electrotherapy Patch for Integrated Smart Wound Management.

    Analytical chemistry·2026
    Same journal

    Metabolite Fraction Libraries for Quantitative NMR Metabolomics.

    Analytical chemistry·2026
    Same journal

    Self-Contained Lateral-Flow Microfluidic Bead-Based Assay for Rapid Quantification of Early-Stage Kidney Biomarkers.

    Analytical chemistry·2026
    Same journal

    Overcoming the Debye Shielding Effect with Concave-Convex Structures for Sensitivity-Enhanced Thin-Film Transistors.

    Analytical chemistry·2026
    Same journal

    Mode-Phase-Difference Photothermal Spectroscopy Assisted by a Bent Biconically Tapered Microfiber for Gas Sensing.

    Analytical chemistry·2026
    Same journal

    Negative-Pressure-Actuated Microfluidics: A Dual-Mode Point-of-Care Sensor for Allergen-Specific IgE in Interstitial Fluid.

    Analytical chemistry·2026
    See all related articles

    Quantum-sized gold nanoparticles (Au25) show excellent electrocatalytic activity for electrochemical sensing. This study highlights their dual role in electron transfer, enhancing sensitivity for detecting ascorbic acid and uric acid.

    Area of Science:

    • Nanomaterials Science
    • Electrochemistry
    • Biosensing

    Background:

    • This research investigates the electrocatalytic properties of quantum-sized thiolate-protected gold nanoparticles (Au25).
    • The study focuses on the application of Au25 nanoparticles in electrochemical sensing platforms.

    Discussion:

    • The Au25 film-modified electrode demonstrated significant mediated electrocatalytic activity.
    • This activity was successfully applied to the amperometric sensing of biologically important molecules: ascorbic acid and uric acid.
    • Electron transfer dynamics within the Au25 film were analyzed concerning nanoparticle concentration.

    Key Insights:

    • Au25 nanoparticles exhibit a dual function, acting as both electronic conductors and redox mediators.
    • A direct correlation was established between the electronic conductivity of the Au25 film and its sensing sensitivity.

    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

    Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules
    13:15

    Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

    Published on: June 1, 2011

    Related Experiment Videos

    Last Updated: Jun 3, 2026

    Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
    07:30

    Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

    Published on: March 7, 2018

    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

    Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules
    13:15

    Fabrication of Electrochemical-DNA Biosensors for the Reagentless Detection of Nucleic Acids, Proteins and Small Molecules

    Published on: June 1, 2011

  • The findings underscore the potential of Au25 nanoparticles in developing highly sensitive electrochemical sensors.

    • Outlook:

    • Further exploration of Au25 nanoparticle-based sensors for a wider range of analytes.
    • Optimization of film fabrication for enhanced sensor performance and stability.
    • Investigating the long-term stability and reusability of Au25 modified electrodes for practical applications.