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

Faraday Disk Dynamo01:23

Faraday Disk Dynamo

3.7K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
3.7K
Gas Exchange and Transport01:20

Gas Exchange and Transport

77.0K
Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
77.0K
Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules02:34

Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules

37.5K
The test of the kinetic molecular theory (KMT) and its postulates is its ability to explain and describe the behavior of a gas. The various gas laws (Boyle’s, Charles’s, Gay-Lussac’s, Avogadro’s, and Dalton’s laws) can be derived from the assumptions of the KMT, which have led chemists to believe that the assumptions of the theory accurately represent the properties of gas molecules.
37.5K
Electric Field of a Charged Disk01:23

Electric Field of a Charged Disk

3.2K
The simplest case of a surface charge distribution is the uniformly charged disk. Calculating its electric field also helps us calculate the electric field of a large plane of charge.
The system's symmetry is in the cylindrical directions across the plane of the charge. As a result, the electric fields created by various surface charge elements nullify each other in the direction parallel to the surface. Thereby, the resulting electric field is perpendicular to the plane. Since the disk is...
3.2K
Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law03:19

Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law

77.4K
Through experiments, scientists established the mathematical relationships between pairs of variables, such as pressure and temperature, pressure and volume, volume and temperature, and volume and moles, that hold for an ideal gas.
77.4K
Ideal Gas Equation01:17

Ideal Gas Equation

8.5K
The ideal gas equation is an equation of state that relates the state variables pressure, volume, temperature, and the number of moles of a hypothetical gas. This equation is a combination of four empirical laws, namely Boyle’s Law, Charles’s Law, Avogadro’s Law, and Gay-Lussac’s Law. When the proportionalities of the above four empirical laws are combined, it results in a single proportionality constant known as the universal gas constant.
8.5K

You might also read

Related Articles

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

Sort by
Same author

Controlled immobilization of single-domain antibodies using cellulose-binding modules for AB<sub>5</sub>-type toxin detection in paper-based assays.

RSC advances·2026
Same author

Quantifying the Full Damage Profile of Focused Ion Beams via 4D-STEM Precession Electron Diffraction and PSNR Metrics.

Small methods·2026
Same author

A Step-by-Step Design Strategy to Realize High-Performance Lithium-Sulfur Batteries.

ACS applied energy materials·2025
Same author

Direct-detection of glyphosate in drinking water <i>via</i> a scalable and low-cost laser-induced graphene sensor.

Analytical methods : advancing methods and applications·2024
Same author

Investigating PEDOT:PSS Binder as an Energy Extender in Sulfur Cathodes for Li-S Batteries.

ACS applied energy materials·2024
Same author

Advancements and challenges in strained group-IV-based optoelectronic materials stressed by ion beam treatment.

Journal of physics. Condensed matter : an Institute of Physics journal·2024

Related Experiment Video

Updated: Feb 4, 2026

An Aptamer-based Sensor for Unchelated GadoliniumIII
05:15

An Aptamer-based Sensor for Unchelated GadoliniumIII

Published on: January 9, 2017

7.8K

A Gas Sensor Based on a Single SnO Micro-Disk.

Mateus G Masteghin1, Marcelo O Orlandi2

  • 1Department of Physical-Chemistry, São Paulo State University, Araraquara, SP 14800-900, Brazil. mgmasteghin@gmail.com.

Sensors (Basel, Switzerland)
|September 28, 2018
PubMed
Summary

This study explores tin oxide (SnO) micro-disks for gas sensing. Large arrays show higher sensitivity and selectivity to nitrogen oxides (NOx) than single disks, offering insights into sensing mechanisms.

Keywords:
Debye lengthFIB nanofabricationSnOgas sensorlow power consumptionsemiconductorsensing mechanismsingle-element device

More Related Videos

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

14.4K
Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors
12:39

Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors

Published on: May 21, 2008

12.0K

Related Experiment Videos

Last Updated: Feb 4, 2026

An Aptamer-based Sensor for Unchelated GadoliniumIII
05:15

An Aptamer-based Sensor for Unchelated GadoliniumIII

Published on: January 9, 2017

7.8K
Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

14.4K
Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors
12:39

Chip-based Three-dimensional Cell Culture in Perfused Micro-bioreactors

Published on: May 21, 2008

12.0K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Sensing

Background:

  • Tin oxide (SnO) micro-disks demonstrate high sensitivity to nitrogen oxides (NOx).
  • Understanding gas sensing mechanisms in nanostructured materials is crucial for developing advanced sensors.

Purpose of the Study:

  • To investigate the gas sensing mechanisms of individual SnO micro-disks with varying dimensions.
  • To compare the performance of single SnO micro-disks with interconnected arrays for NOx detection.

Main Methods:

  • Fabrication of individual SnO micro-disks with controlled areas and thicknesses.
  • Electrical connection of micro-disks using a Dual Beam Microscope (SEM/FIB).
  • Characterization of gas sensing properties, including response/recovery times, power consumption, sensitivity, and selectivity.

Main Results:

  • Single SnO micro-disk devices exhibited rapid response/recovery times and low power consumption.
  • Interconnected arrays of SnO micro-disks demonstrated significantly enhanced sensitivity and selectivity to NOx.
  • Device thickness was identified as a critical factor influencing gas sensing in single-device configurations.

Conclusions:

  • The study elucidates the role of physical dimensions and array configuration in SnO-based gas sensing.
  • Findings provide insights into gas/solid interaction and transport mechanisms governing NOx sensing.
  • The Debye length of SnO disks in the presence of NO₂ was calculated and reported for the first time.