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

Balancing Redox Equations02:58

Balancing Redox Equations

62.5K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
62.5K
Ionic Bonds00:42

Ionic Bonds

132.2K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
132.2K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

88.1K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
88.1K
Ionic Radii03:10

Ionic Radii

33.9K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.9K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.3K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.3K
Redox Reactions01:24

Redox Reactions

58.9K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
58.9K

You might also read

Related Articles

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

Sort by
Same author

Harnessing interfacial click polymerization using pyridinium-yne films as photochromic, radical generation and sensing platforms.

Nature communications·2026
Same author

Synergistic Singlet-Triplet Regulation in Platinum(II)-Acetylide Triads with Strong Two-Photon Absorption and Optical Power Limiting.

The journal of physical chemistry. B·2026
Same author

Charge Dilution of Fe-N<sub>4</sub> Sites via Te Single-Atom Electron Pumps for Robust Oxygen Reduction.

Inorganic chemistry·2026
Same author

Interfacial Fluorescent Nanofilms for Rapid and Discriminative Detection of Diethyl Chlorophosphate and Thionyl Chloride.

ACS applied materials & interfaces·2026
Same author

Manipulating excited-state dynamics through macrocycle positioning in a rotaxane for sensitive and discriminative methanol sensing.

Chemical science·2026
Same author

Acridine-Functionalized Fluorescent Nanofilm Toward High-Performance Detection and Visualization of Ethylenediamine Vapor.

ACS sensors·2026
Same journal

Heterojunction-Enhanced Interfacial Evanescent-Tunable Fiber Optic Probe for Amplification-free CRISPR/Cas12a-Based Rapid and Ultrasensitive Detection of MPXV.

Analytical chemistry·2026
Same journal

Tunable Charge Transfer in Europium Metal-Organic Frameworks for Ratiometric Sensing of a Sarin Simulant.

Analytical chemistry·2026
Same journal

A β-Cyclodextrin/Ag<sub>2</sub>O@MWCNT-Based Stochastic Platform for the Simultaneous Molecular Enantiorecognition and Enantioanalysis of Twelve Amino Acids in Biological Matrices.

Analytical chemistry·2026
Same journal

The ACS at 150: The History of Analytical Chemistry Publications and a Century of Progress.

Analytical chemistry·2026
Same journal

Machine Learning-Enabled Image Analysis of Complex Chemical Mixtures: Synthetic Urine Droplets as a Test System.

Analytical chemistry·2026
Same journal

H<sub>2</sub>O<sub>2</sub>/Viscosity Tandem-Locked Fluorescent Probes Based on an In Situ Fluorophore Synthesis Strategy for Colitis Imaging and Diagnosis.

Analytical chemistry·2026
See all related articles

Related Experiment Video

Updated: Feb 14, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids
07:14

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids

Published on: August 23, 2018

9.5K

Redox Recycling Amplification Using an Interdigitated Microelectrode Array for Ionic Liquid-Based Oxygen Sensors.

Richard Gondosiswanto1, D Brynn Hibbert1, Yu Fang2

  • 1School of Chemistry , UNSW Sydney , Sydney , NSW 2052 , Australia.

Analytical Chemistry
|February 27, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces a novel membrane-free gas sensor utilizing ionic liquids and interdigitated microelectrodes. This design enhances current through redox cycling, enabling highly sensitive detection of gases like oxygen.

More Related Videos

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.5K
Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
10:42

Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids

Published on: August 10, 2016

19.0K

Related Experiment Videos

Last Updated: Feb 14, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids
07:14

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids

Published on: August 23, 2018

9.5K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.5K
Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
10:42

Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids

Published on: August 10, 2016

19.0K

Area of Science:

  • Electrochemistry
  • Chemical Sensors
  • Materials Science

Background:

  • Traditional gas sensors often require membranes and struggle with sensitivity for certain gases.
  • Developing highly sensitive and selective gas detection methods is crucial for environmental monitoring and industrial applications.

Purpose of the Study:

  • To design and demonstrate a novel membrane-free gas sensor with enhanced sensitivity.
  • To investigate the use of ionic liquids and interdigitated microelectrodes for gas detection.
  • To analyze the sensor's performance for gases with reversible electrochemistry, such as dioxygen.

Main Methods:

  • Fabrication of a gas sensor with miniaturized interdigitated microelectrodes.
  • Modification of the sensor with a thin layer of ionic liquid.
  • Utilizing a redox-cycling mechanism where analyte molecules are reduced and reoxidized at adjacent electrodes.
  • Testing the sensor's response to dioxygen at various concentrations.

Main Results:

  • The sensor achieved high sensitivity (3.29 ± 0.06 nA cm-2 ppm-1) and a low detection limit (174 ppm) for dioxygen.
  • The redox-cycling mechanism significantly enhanced the measured current.
  • The sensor demonstrated good accuracy and precision in monitoring oxygen concentrations.
  • The enhanced current was specific to gases with reversible electrochemistry.

Conclusions:

  • The proposed membrane-free gas sensor design offers a promising approach for sensitive and selective gas detection.
  • The use of ionic liquids and interdigitated microelectrodes, coupled with redox cycling, effectively enhances sensor performance.
  • This technology is particularly suitable for analyzing gases with reversible electrochemical properties.