Detailed Information

Cited 5 time in webofscience Cited 6 time in scopus
Metadata Downloads

Multi-stimuli responsive and reversible soft actuator engineered by layered fibrous matrix and hydrogel micropatterns

Authors
Kanghee ChoDONYEONG KANGHyungsuk LeeWon-Gun Koh
Issue Date
1-Jan-2022
Publisher
ELSEVIER SCIENCE SA
Keywords
Soft actuators; Electrospun fibers; Hydrogel micropatterns; Multi-responsive; Actuator fabrication platforms
Citation
CHEMICAL ENGINEERING JOURNAL, v.427, pp.130879-1 - 130879-12
Journal Title
CHEMICAL ENGINEERING JOURNAL
Volume
427
Start Page
130879-1
End Page
130879-12
URI
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/5274
DOI
10.1016/j.cej.2021.130879
ISSN
1385-8947
Abstract
Soft actuators enable the motion of soft materials such as living organisms, biomaterials, and flexible materials in environments where multiple stimuli are simultaneously present. Although various fast, reversible, and direction-guided actuators exist, their material and structural complexity hinder the construction of a simple fabrication platform for actuators responsive to various environmental conditions with reversible and controlled actuation dynamics. We propose an engineered multi-responsive actuator fabrication platform by combining electrospinning and hydrogel lithography techniques. The fabricated soft actuator is composed of stimuli-responsive hydrogel fibers as an active layer, non-responsive fibers as a passive layer, and a micropatterned hydrogel coupling layer to combine those layers. We demonstrate the reversible bending and unbending of the actuator in response to changes in pH and temperature for less than 2 min. The computational modeling is used to elucidate the bending mechanism of the layered actuator and obtain the key parameters to determine its characteristics. The bending direction is regulated by modulating the mechanical properties of the actuator materials and dimensions of hydrogel micropatterns. The fabrication process is versatile and multi-responsive actuation is achieved by adding another active fiber layer without modifying it. Our study provides an insight into the design of a stimulus-specific, multi-scale, multi-functional soft actuator.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Mechanical Engineering > 1. Journal Articles
College of Engineering > Chemical Engineering > 1. Journal Articles

qrcode

Items in Scholar Hub are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher KANG, DONYOUNG photo

KANG, DONYOUNG
College of Engineering (Mechanical Engineering)
Read more

Altmetrics

Total Views & Downloads

BROWSE