2023
DOI: 10.3390/polym15030786
|View full text |Cite
|
Sign up to set email alerts
|

Designing Multistimuli-Responsive Anisotropic Bilayer Hydrogel Actuators by Integrating LCST Phase Transition and Photochromic Isomerization

Abstract: Stimuli-responsive hydrogel actuators have attracted tremendous interest in switches and microrobots. Based on N-isopropylacrylamide (NIPAM) monomers with LCST phase separation and photochromic molecule spiropyran which can respond to ultraviolet light and H+, we develop a novel multistimuli-responsive co-polymer anisotropic bilayer hydrogel, which can undergo complex deformation behavior under environmental stimuli. Diverse bending angles were achieved based on inhomogeneous swelling. By controlling the envir… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

0
8
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
5
3

Relationship

2
6

Authors

Journals

citations
Cited by 10 publications
(8 citation statements)
references
References 35 publications
0
8
0
Order By: Relevance
“…Ethanol absolute (analytical reagent), benzene (analytical reagent), Tween 80 (chemically pure), ammonium persulfate (APS, analytical reagent) and N,N′-methylene diacrylamide (MBAA, chemically pure) were supplied by Sinopharm Chemical Reagent Co., Ltd., Shanghai, China. Poly(sodium 2-acrylamido-2-methylpropane-1-sulfonate) (PNaAMPS) was prepared according to the method used in our previous study [ 28 ].…”
Section: Methodsmentioning
confidence: 99%
“…Ethanol absolute (analytical reagent), benzene (analytical reagent), Tween 80 (chemically pure), ammonium persulfate (APS, analytical reagent) and N,N′-methylene diacrylamide (MBAA, chemically pure) were supplied by Sinopharm Chemical Reagent Co., Ltd., Shanghai, China. Poly(sodium 2-acrylamido-2-methylpropane-1-sulfonate) (PNaAMPS) was prepared according to the method used in our previous study [ 28 ].…”
Section: Methodsmentioning
confidence: 99%
“…[ 9 ] The driving force of hydrogel actuators primarily arises from the expansion and/or contraction deformations. [ 10,11 ] Various hydrogel devices with heterogeneous structures and properties have been fabricated by precisely controlling the spatial distribution of the responsive domains in the hydrogel network. [ 12,13 ] However, the response rate of most responsive hydrogels through volume changes caused by water intake or loss is slow.…”
Section: Introductionmentioning
confidence: 99%
“…Specifically, for photoresponsive hydrogels, photochromic monomers, such as spiropyran (SP) [ 10 , 11 , 12 ], 4,4-bipyridine [ 13 ], azobenzene [ 14 ] and diarylethenes [ 15 ], have been introduced into hydrogels to develop optical displays. Photochromic moieties can be integrated into hydrogel structures via dynamic coordination [ 16 ], in situ co-polymerisation [ 17 ], dynamic host–guest interaction [ 18 ] and micellar co-polymerisation [ 19 ].…”
Section: Introductionmentioning
confidence: 99%