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Cardiac Muscle Cell-based Actuator and Self-stabilizing Biorobot - Part 2

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Light-Driven Multidirectional Bending in Artificial Muscles.

Zahra Madani¹, Pedro E S Silva¹, Hossein Baniasadi²

¹Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, Espoo, 02150, Finland.

Advanced Materials (Deerfield Beach, Fla.)

|July 24, 2024

Summary

This summary is machine-generated.

Researchers developed light-activated polymer actuators that enable fast, multidirectional bending for soft robotics and active textiles. These artificial muscles offer wireless control and autonomous light-seeking capabilities, advancing biomimetic technologies.

Keywords:

actuators artificial muscles smart textiles

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

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

Published on: May 25, 2016

Area of Science:

Materials Science
Robotics
Polymer Science

Background:

Polymer actuators offer potential for wireless control in soft robotics and active textiles.
Light-driven actuation enables spatially selective and complex motions.
Existing systems often lack rapid response times or precise directional control.

Purpose of the Study:

To integrate photothermal components into shape memory polymer actuators.
To achieve on-command multidirectional bending controlled by light.
To demonstrate advanced functionalities like autonomous light-seeking and rapid actuation.

Main Methods:

Fabrication of twist-coiled artificial muscles incorporating photothermal components.
Controlled illumination with varying intensity and chirality to induce bending.
Integration of actuators into textile structures for functional demonstrations.

Main Results:

Achieved on-command multidirectional bending in artificial muscles, controllable by light intensity and chirality.
Demonstrated that bending directionality is achieved through localized untwisting, independent of intrinsic material properties.
Exhibited response times up to one second, significantly faster than biological systems.
Showcased reversible and sustained actuation in textile applications, including autonomous orientation towards a light source even on a rotating platform.

Conclusions:

The developed photothermal polymer actuators represent a breakthrough in artificial muscle technology.
These actuators offer fast, programmable, and wirelessly controlled actuation for adaptive shape-changing soft systems.
The technology holds significant promise for advanced soft robotics, active textiles, and biomimetic applications.