Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Batteries and Fuel Cells

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...

You might also read

Related Articles

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

Sort by

Same author

Coordination-Constraint-Driven Enhanced Chirality Induction in Perovskite Quantum Dot Solids.

Journal of the American Chemical Society·2026

Same author

[Analysis on epidemiological characteristics of typhoid and paratyphoid fever and patient medical treatment seeking flow in Guizhou Province, 2015-2024].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2026

Same author

[Perioperative stroke after cardiac surgery: prevention and treatment strategies].

Zhonghua yi xue za zhi·2026

Same author

[The application of large language models in the diagnosis of clinically significant prostate cancer].

Zhonghua wai ke za zhi [Chinese journal of surgery]·2026

Same author

Noninvasive, Ultrathin, Flexible Microneedle Electrodes for Accurate and Long-Term Biopotential Monitoring.

ACS applied materials & interfaces·2025

Same author

[Impact of different blood transfusion thresholds on clinical outcomes in children with severe traumatic brain injury].

Zhonghua er ke za zhi = Chinese journal of pediatrics·2025

Search research articles

Related Experiment Video

Updated: Dec 2, 2025

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Published on: August 18, 2023

Light-stimulated actuators based on nickel hydroxide-oxyhydroxide.

K W Kwan¹, S J Li¹, N Y Hau¹

¹Department of Mechanical Engineering, the University of Hong Kong, Hong Kong.

Science Robotics

|November 3, 2020

Summary

Researchers developed a novel nickel hydroxide-oxyhydroxide material for light-induced actuators. This material enables wireless, light-driven actuation for microrobotics, mimicking muscle performance with potential applications in advanced robotic systems.

More Related Videos

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Published on: July 28, 2020

Related Experiment Videos

Last Updated: Dec 2, 2025

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Published on: August 18, 2023

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy

Published on: July 28, 2020

Area of Science:

Materials Science
Robotics
Nanotechnology

Background:

Wireless actuation is crucial for simplifying microrobotic systems.
Existing artificial muscles often require complex or wired actuation methods.

Purpose of the Study:

To develop a self-contained, light-actuated material for microrobotics.
To investigate the potential of nickel hydroxide-oxyhydroxide as an artificial muscle.

Main Methods:

Synthesized nickel hydroxide-oxyhydroxide with a turbostratic crystal structure.
Fabricated film actuators by electroplating the material onto passive substrates.
Demonstrated actuation through light-induced desorption of intercalated water.

Main Results:

The material exhibits volume changes and actuation upon exposure to low-intensity visible light.
Actuators demonstrated reversible bending and curling with stress comparable to mammalian skeletal muscles.
A hinged actuator successfully lifted objects ~100 times its own weight.

Conclusions:

Nickel hydroxide-oxyhydroxide is a promising material for wireless, light-driven artificial muscles.
The developed actuators show potential for diverse applications in microrobotics and biomimetic devices.
This technology offers a pathway towards more sophisticated and autonomous robotic systems.