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Related Experiment Video

Updated: Sep 13, 2025

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

Visible Light-Driven Soft Actuator Exhibiting Multistage Shape Morphing.

Xinyu Chen¹, Zhaozhong Li², Xinrui Deng¹

¹College of Chemistry and Engineering, Jiangxi Normal University, Nanchang, 330022, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|August 1, 2025

Summary

This summary is machine-generated.

Researchers developed a new light-driven liquid crystalline network (LCN) film using donor-acceptor stenhouse adducts (DASAs). This material enables multistage color changes and shape morphing for adaptive soft robots without complex synthesis.

Keywords:

donor‐acceptor stenhouse adducts liquid crystalline network multistage shape self‐feedback photoactuation soft actuator

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Area of Science:

Materials Science
Polymer Chemistry
Robotics

Background:

Traditional soft robots exhibit limitations in complex motion and adaptability despite their flexibility.
Developing advanced materials is crucial for enhancing soft robot capabilities.

Purpose of the Study:

To design and prepare a visible light-driven liquid crystalline network (LCN) film with multistage photo-responsive behavior.
To enable the fabrication of complex, self-adaptive light-driven soft actuators and devices.

Main Methods:

Integration of donor-acceptor stenhouse adducts (DASAs) into an LCN matrix.
Controlled polymerization temperature to influence DASA isomerization and photothermal effects.
Fabrication of DASA-LCN films with spatially precise photo-induced color changes and shape morphing.

Main Results:

DASA exhibited polymerization temperature-dependent isomerization.
The DASA-LCN film demonstrated multistage color changes and shape morphing under visible light.
A soft actuator with time-resolved light-responsive deformations was successfully achieved.

Conclusions:

A straightforward method for preparing self-adaptive light-driven LCN devices was demonstrated.
This advancement paves the way for reconfigurable and inherently adaptive soft robots.
The developed material offers precise control over photo-induced deformations without complex synthesis.