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

2.4K
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...
2.4K
Van de Graaff Generator01:15

Van de Graaff Generator

1.8K
Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
1.8K
Induced Electric Fields: Applications01:27

Induced Electric Fields: Applications

1.8K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
1.8K
Induced Electric Fields01:23

Induced Electric Fields

3.8K
The fact that emfs are induced in circuits implies that work is being done on the conduction electrons in the wires. What can possibly be the source of this work? We know that it’s neither a battery nor a magnetic field, as a battery does not have to be present in a circuit where current is induced, and magnetic fields never do any work on moving charges. The source of the work is in fact an electric field that is induced in the wires. For example, if a stationary conductor is placed in a...
3.8K
Charging Conductors By Induction01:15

Charging Conductors By Induction

8.1K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
8.1K
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

1.3K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
1.3K

You might also read

Related Articles

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

Sort by
Same author

Gender differences in early functional recovery after minimally invasive distal transverse metatarsal osteotomy - Akin Osteotomy (MITA) for hallux valgus: a propensity-matched study of 300 cases.

BMC musculoskeletal disorders·2026
Same author

Charge-engineered cellulose nanofibril binders for PFAS-free, high-loading lithium battery positive electrodes.

Nature communications·2026
Same author

Decrease in Nucleated Particles and Cloud Condensation Nuclei Observed across a Range of Environments.

Environmental science & technology·2026
Same author

Concurrently Achieving 4.6 W/M<sup>2</sup> and 120,000 Cyclability Enabled by Extendable Swing Arms in Rotational Triboelectric Nanogenerator.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Tenofovir Alafenamide Promotes Differentiation and Induces Apoptosis of AML Cells by Inhibiting Telomerase Reverse Transcriptase.

Anticancer research·2026
Same author

Axial-Flexural Performance of Steel Fiber-Reinforced Concrete Columns: Effects of Axial Load Ratio and Steel Fiber Volume Fraction.

Materials (Basel, Switzerland)·2026
Same journal

Bio-distribution of Carbon Nanoparticles Studied by Photoacoustic Measurements.

Nanoscale research letters·2022
Same journal

Effects of High-Temperature Growth of Dislocation Filter Layers in GaAs-on-Si.

Nanoscale research letters·2022
Same journal

Correction: Assembly of Carbon Dots into Frameworks with Enhanced Stability and Antibacterial Activity.

Nanoscale research letters·2022
Same journal

Improved Subthreshold Characteristics by Back-Gate Coupling on Ferroelectric ETSOI FETs.

Nanoscale research letters·2022
Same journal

Gold Nanoparticles Enhancing Generation of ROS for Cs-137 Radiotherapy.

Nanoscale research letters·2022
Same journal

Retraction Note: M1 Macrophage-Derived Exosomal MicroRNA-326 Suppresses Hepatocellular Carcinoma Cell Progression Via Mediating NF-κB Signaling Pathway.

Nanoscale research letters·2022
See all related articles

Related Experiment Video

Updated: Aug 16, 2025

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K

Self-Powered Fine Dust Filtration Using Triboelectrification-Induced Electric Field.

Young-Jun Kim1, Hyoung Taek Kim1, Jeong Hwan Lee1

  • 1School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.

Nanoscale Research Letters
|December 23, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a novel triboelectric (TE) air filter that achieves over 99.97% removal of fine particulate matter (PM2.5) with significantly lower pressure loss than HEPA filters.

Keywords:
Air qualityFine dust filtrationParticulate matterSelf-powered operationTriboelectric nanogenerator

More Related Videos

Additive Manufacturing-Enabled Low-Cost Particle Detector
06:05

Additive Manufacturing-Enabled Low-Cost Particle Detector

Published on: March 24, 2023

1.3K
Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.6K

Related Experiment Videos

Last Updated: Aug 16, 2025

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K
Additive Manufacturing-Enabled Low-Cost Particle Detector
06:05

Additive Manufacturing-Enabled Low-Cost Particle Detector

Published on: March 24, 2023

1.3K
Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.6K

Area of Science:

  • Environmental Science
  • Materials Science
  • Nanotechnology

Background:

  • Particulate matter (PM) poses significant health risks.
  • Air filtration systems face challenges in balancing high removal efficiency with low-pressure loss.

Purpose of the Study:

  • To develop a novel triboelectric (TE) air filtration system for efficient particulate matter removal.
  • To address the design challenges of high removal efficiency and low-pressure loss in air filters.

Main Methods:

  • A rotation-type triboelectric nanogenerator (TENG) was integrated with a two-plate filter system (primary and secondary).
  • The TENG generates opposite charges on the plates, creating an electric field to capture charged airborne particles.
  • The system utilizes the airflow to drive the TENG, enabling self-powered operation.

Main Results:

  • The TE filter demonstrated a PM2.5 removal efficiency of approximately 99.97%.
  • The system exhibited a pressure loss nearly two orders of magnitude lower than High-Efficiency Particulate Air (HEPA) filters.
  • The filter's performance remained stable after multiple washing cycles.

Conclusions:

  • The developed TE air filtration system offers a highly efficient and low-pressure-loss solution for fine dust removal.
  • Its self-powered nature and stable performance make it suitable for integration into various air conditioning systems for diverse applications.