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

Magnetic Damping01:17

Magnetic Damping

918
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
918
Plastic Deformation in Circular Shafts01:20

Plastic Deformation in Circular Shafts

389
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
389
Types of Damping01:20

Types of Damping

7.4K
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
7.4K
Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

3.2K
The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
3.2K

You might also read

Related Articles

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

Sort by
Same author

Biosensor Technologies and Smart Dressings for Chronic Wound Monitoring: A Systematic Review.

Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society·2026
Same author

High-intensity focused ultrasound (HIFU) modeling: in vitro validation and integration into patient-specific planning tool.

Scientific reports·2026
Same author

Ultrasound modulates microglial activity and reduces neuroinflammation in a parameter-dependent manner.

NPJ acoustics·2026
Same author

Magnetically-driven deployable structure inspired by worms.

Bioinspiration & biomimetics·2026
Same author

Comparative Effectiveness of Physical and Virtual Reality Simulators in Robotic Surgical Training.

Journal of clinical medicine·2026
Same author

Unsegmented marine annelids as biomechanical models for soft robotics.

Scientific reports·2026

Related Experiment Video

Updated: Dec 20, 2025

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
08:17

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

9.6K

A Layer Jamming Actuator for Tunable Stiffness and Shape-Changing Devices.

Michele Ibrahimi1,2, Linda Paternò1,2, Leonardo Ricotti1,2

  • 1The Biorobotics Institute, Scuola Superiore di Studi Universitari e di Perfezionamento Sant'Anna, Pontedera, Italy.

Soft Robotics
|May 28, 2020
PubMed
Summary

This study introduces a novel device that dynamically changes stiffness and shape using a multi-chamber system. This technology offers efficient, low-cost solutions for robotics and wearable applications.

Keywords:
inflatable actuatorslayer jammingsoft roboticsvariable shapevariable stiffnesswearable devices

More Related Videos

Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers
07:09

Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers

Published on: August 17, 2018

9.5K
Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
14:42

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

8.7K

Related Experiment Videos

Last Updated: Dec 20, 2025

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
08:17

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

9.6K
Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers
07:09

Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers

Published on: August 17, 2018

9.5K
Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
14:42

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

8.7K

Area of Science:

  • Robotics
  • Materials Science
  • Wearable Technology

Background:

  • Dynamic control of device shape and stiffness is crucial for advancements in robotics and wearable systems.
  • Variable stiffness materials and actuation technologies are key to achieving this control.
  • Layer jamming actuation presents a promising, efficient, and cost-effective approach.

Purpose of the Study:

  • To propose and demonstrate a novel stiffness- and shape-changing device.
  • To utilize a multiple-chamber structure for effective modulation of stiffness and shape.
  • To explore the potential applications in robotics and wearable devices.

Main Methods:

  • Development of a novel device featuring a multiple-chamber structure.
  • Activation of jamming chambers and pressurization/depressurization of interposed inflatable chambers.
  • Fabrication and testing of prototypes (45 × 270 mm², 4.4–13 mm thickness).

Main Results:

  • Demonstrated stiffness change over two orders of magnitude.
  • Achieved shape modulation with >10 mm deflection based on chamber inflation.
  • Successfully tested as an orthotic brace, enhancing comfort and providing support.

Conclusions:

  • The proposed multi-chamber device effectively modulates stiffness and shape.
  • The technology shows significant potential for soft robots, prosthetics, grippers, and wearable orthotics.
  • This approach offers a versatile platform for advanced robotic and assistive applications.