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

Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

4.6K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
4.6K
High-Performance Liquid Chromatography: Types of Detectors01:15

High-Performance Liquid Chromatography: Types of Detectors

360
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
360
Gas Chromatography: Overview of Detectors01:13

Gas Chromatography: Overview of Detectors

301
Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
301

You might also read

Related Articles

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

Sort by
Same author

Dual-Mode Plasmonic Colorimetric/Photothermal Aptasensor for OTA: Based on a Mn<sup>2+</sup>-Powered DNA Walker for Mediating AuNB Growth.

Foods (Basel, Switzerland)·2025
Same author

A BTO/PVDF/PDMS Piezoelectric Tangential and Normal Force Sensor Inspired by a Wind Chime.

Micromachines·2023
Same author

Highly Sensitive Magnetoelastic Biosensor for Alpha2-Macroglobulin Detection Based on MnFe<sub>2</sub>O<sub>4</sub>@chitosan/MWCNTs/PDMS Composite.

Micromachines·2023
Same author

Implementation of a Sponge-Based Flexible Electronic Skin for Safe Human-Robot Interaction.

Micromachines·2022
Same author

AC Electrodeposition of PEDOT Films in Protic Ionic Liquids for Long-Term Stable Organic Electrochemical Transistors.

Molecules (Basel, Switzerland)·2019
Same author

Highly Sensitive and Stretchable Strain Sensor Based on Ag@CNTs.

Nanomaterials (Basel, Switzerland)·2017

Related Experiment Video

Updated: May 11, 2025

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy DHM
07:27

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy DHM

Published on: November 1, 2017

10.2K

Ultra-low LOD H2O2 Sensor Based on Synergistic Nernst Potential Effect.

Zhaoqun Wang1,2, Wen Gao3, Xiaorong Niu1

  • 1College of Integrated Circuits, Taiyuan University of Technology, Taiyuan, 030024, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|April 17, 2025
PubMed
Summary

This study introduces a novel organic electrochemical transistor (OECT) sensor for ultra-sensitive hydrogen peroxide (H₂O₂) detection. The developed microsystem offers reliable H₂O₂ and glucose monitoring for food and biomedical applications.

Keywords:
hydrogen peroxide detectionorganic electrochemical transistorsultralow limit of detection

More Related Videos

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

26.4K
Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
06:58

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

9.6K

Related Experiment Videos

Last Updated: May 11, 2025

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy DHM
07:27

Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy DHM

Published on: November 1, 2017

10.2K
Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

26.4K
Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
06:58

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

9.6K

Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Analytical Chemistry

Background:

  • Accurate detection of hydrogen peroxide (H₂O₂) is crucial for food processing and biomedical research.
  • Organic electrochemical transistors (OECTs) offer significant signal amplification for biochemical sensing.
  • Existing H₂O₂ detection methods require improvement in sensitivity and applicability.

Purpose of the Study:

  • To develop a highly sensitive OECT-based sensor for detecting hydrogen peroxide (H₂O₂).
  • To investigate the synergistic effects of material composition and catalytic mechanisms for enhanced detection.
  • To demonstrate the practical application of the sensor in real-world samples and for related analytes.

Main Methods:

  • Fabrication of an OECT using stacked PEDOT:BTB/PEDOT:PSS as the semiconducting channel.
  • Utilizing a platinum gate electrode for catalyzing H₂O₂ and BTB interaction for Nernst potential generation.
  • Development of a microsystem with signal processing and a mobile app for sensor integration and testing.

Main Results:

  • Achieved an ultra-low limit of detection (LOD) for H₂O₂ down to 1.8 × 10⁻¹² M.
  • Demonstrated the sensor's reliability by testing on commercial milk samples.
  • Successfully detected glucose with a LOD of 8.82 × 10⁻¹¹ M, showcasing broader applicability.

Conclusions:

  • The developed OECT sensor provides a highly sensitive and reliable method for H₂O₂ detection.
  • The synergistic catalytic mechanism significantly enhances sensor performance.
  • The methodology is adaptable for detecting various analytes involved in enzyme-catalyzed reactions.