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

The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

65.7K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
65.7K
The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

33.9K
Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
33.9K
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

1.3K
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
1.3K
Interference and Diffraction02:18

Interference and Diffraction

52.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
52.6K
RNA Interference01:23

RNA Interference

28.2K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
28.2K
Electromagnetic Waves01:30

Electromagnetic Waves

11.6K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
11.6K

You might also read

Related Articles

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

Sort by
Same author

High thermal conductivity in noncrystalline enriched polyethylene fibers.

Science advances·2026
Same author

Scalable hierarchical textile fibers toward personalized wearable atmospheric water harvesting.

Science advances·2026
Same author

A protein surface-aware multimodal framework for residue-level metal-binding site recognition.

Cell reports methods·2026
Same author

Incorporating Carbamate Groups into Polyolefin Elastomers for High Performance and Closed-Loop Recyclability.

Journal of the American Chemical Society·2025
Same author

Synergistic Preparation of High-Performance Gel Electrolytes via Pore Morphology Regulation and Liquid Metal Modification.

ACS applied materials & interfaces·2025
Same author

Designing functional filler networks via in situ silver nanoparticles through barrier tuning and volume exclusion.

Nature communications·2025

Related Experiment Video

Updated: Feb 15, 2026

Mechanical Stimulation of Chondrocyte-agarose Hydrogels
12:45

Mechanical Stimulation of Chondrocyte-agarose Hydrogels

Published on: October 27, 2012

12.1K

Robust and Mechanically and Electrically Self-Healing Hydrogel for Efficient Electromagnetic Interference Shielding.

Weixing Yang1, Bowen Shao1, Tianyu Liu1

  • 1College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China.

ACS Applied Materials & Interfaces
|January 31, 2018
PubMed
Summary

Researchers developed self-healing hydrogels using cellulose nanofibers and carbon nanotubes. These advanced materials exhibit enhanced mechanical strength, electrical conductivity, and electromagnetic interference shielding, offering promising applications for artificial skin and electronics protection.

Keywords:
EMI shieldingcellulose nanofibermultiwalled carbon nanotubesself-healing hydrogel

More Related Videos

Author Spotlight: Exploring the Potential of Fat-Derived Stromal Vascular Fraction for Wound Healing
05:30

Author Spotlight: Exploring the Potential of Fat-Derived Stromal Vascular Fraction for Wound Healing

Published on: November 17, 2023

1.1K
Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility
05:24

Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility

Published on: September 6, 2024

1.7K

Related Experiment Videos

Last Updated: Feb 15, 2026

Mechanical Stimulation of Chondrocyte-agarose Hydrogels
12:45

Mechanical Stimulation of Chondrocyte-agarose Hydrogels

Published on: October 27, 2012

12.1K
Author Spotlight: Exploring the Potential of Fat-Derived Stromal Vascular Fraction for Wound Healing
05:30

Author Spotlight: Exploring the Potential of Fat-Derived Stromal Vascular Fraction for Wound Healing

Published on: November 17, 2023

1.1K
Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility
05:24

Author Spotlight: Improving the Production of Self-Assembling Fibers and Peptide Hydrogels for Superior Biocompatibility

Published on: September 6, 2024

1.7K

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Self-healing hydrogels offer improved stability and longevity by autonomously repairing damage.
  • Existing hydrogels often lack robust mechanical properties, electrical conductivity, and electromagnetic interference (EMI) shielding capabilities.

Purpose of the Study:

  • To fabricate a robust, self-healing hydrogel with enhanced mechanical and electrical properties and efficient EMI shielding.
  • To investigate the role of cellulose nanofiber (CNF) as a dispersant for multiwalled carbon nanotubes (MWCNTs) in polyacrylamide (PAM) hydrogels.

Main Methods:

  • Fabrication of polyacrylamide (PAM) hydrogels incorporated with multiwalled carbon nanotubes (MWCNTs) using cellulose nanofiber (CNF) as a dispersant.
  • Characterization of mechanical strength, electrical conductivity, and EMI shielding effectiveness of the composite hydrogels.
  • Evaluation of self-healing capabilities, including restoration of electrical conductivity and EMI shielding after damage.

Main Results:

  • The composite hydrogels demonstrated significantly enhanced tensile strength (0.24 MPa), electrical conductivity (0.85 S m⁻¹), and EMI shielding effectiveness (28.5 dB) compared to pure PAM hydrogels.
  • Optimal performance was achieved with 1 wt% MWCNTs and 0.3 wt% CNF, showing substantial increases in key properties.
  • The hydrogels exhibited autonomous self-healing of electrical conductivity and EMI shielding at room temperature without external stimuli.

Conclusions:

  • The developed PAM/CNF/MWCNT composite hydrogels possess excellent mechanical, electrical, and self-healing properties, alongside effective EMI shielding.
  • These materials mimic human skin while offering superior electrical and shielding functionalities.
  • The study highlights promising prospects for these advanced hydrogels in applications such as artificial skin and protecting sensitive electronics.