Real-Time Stress Visualization of Hydrogels Enabled by Supramolecularly Switched Stretch‐Induced Phase Separation

Noh, Sooyeon; Sugawara, Akihide; Ishihara, Naoaki et al.

Advanced Science, 2026, e76110

アクセス数:288件（2026-10-22 08:47 集計）

固定URL: https://hdl.handle.net/11094/105922

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タイトル
Real-Time Stress Visualization of Hydrogels Enabled by Supramolecularly Switched Stretch‐Induced Phase Separation
著者
著者名
Noh, Sooyeon
NRID
1000050966447 1000050966447
ORCID
0000-0002-5060-0923 0000-0002-5060-0923
researchmap permalink
a29 a29
Scopus Author ID
57216289677 57216289677
著者名
Sugawara, Akihide
著者名
Ishihara, Naoaki
NRID
1000090378878 1000090378878
著者名
Konishi, Takashi
NRID
1000080806638 1000080806638
著者名
Ueda, Yuki
NRID
1000050414579 1000050414579
著者名
Motokawa, Ryuhei
NRID
1000040379277 1000040379277
ORCID
0000-0002-2620-3266 0000-0002-2620-3266
researchmap permalink
ytakashima_0068747 ytakashima_0068747
Scopus Author ID
7103176267 7103176267
著者名
Takashima, Yoshinori
NRID
1000070203594 1000070203594
ORCID
0000-0002-8587-2507 0000-0002-8587-2507
researchmap permalink
read0168389 read0168389
Scopus Author ID
7102108908 7102108908
著者名
Uyama, Hiroshi
キーワード等
adamantane
materials science
mechanotransduction
opacity
polymer
supramolecular chemistry
visualization
内容
Noh Sooyeon, Sugawara Akihide, Ishihara Naoaki, et al. Real-Time Stress Visualization of Hydrogels Enabled by Supramolecularly Switched Stretch‐Induced Phase Separation. Advanced Science, e76110 (2026); https://doi.org/10.1002/advs.76110.
抄録
The visualization of mechanical stress in soft materials is highly desirable; however, real-time optical readouts using conventional sensing approaches are problematic because mechanophore-based systems typically require strong threshold-type activation with slow recovery. Herein, we report supramolecular hydrogels that enable the continuous and reversible visualization of mechanical stress in real time via stretch-induced phase separation. Supramolecular switching mechanotransduction (SSM) has been proposed as the key mechanism. Mechanical stimuli are transduced into a distinct network state transition through host–guest complexes between β-cyclodextrin and adamantane as supramolecular switches. In this design, guest-functionalized polymers undergo on–off transition between the hydrated and dehydrated states via host–guest complexation and decomplexation. Responsive polymers, incorporated into the hydrogel network via supramolecular bonds, function as reversible cross-links and switches. Upon stretching, the hydrogels macroscopically transition from transparent to opaque owing to the dehydration-induced heterogeneity within the responsive domains. The linear and reversible changes in the opacity with applied stress—attributable to sacrificial and reversible supramolecular switching—enable the visualization of stress distributions. This design principle offers a platform for spatiotemporally resolved mapping of the mechanical states in hydrogels with an intuitive, instrument-free readout, and lays the foundation for monitoring, timely intervention, and safer operation of soft-material systems.
出版者
Wiley
収録物名
Advanced Science
ページ
e76110
刊行年月
2026-06-18
言語
英語
ハンドルURL
https://hdl.handle.net/11094/105922
PISSN
21983844
eISSN
21983844
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1002/advs.76110
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article