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A switchable-transparency eutectogel enabled by multiple dynamic interactions for smart display applications

delete2026-05-07
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PRE
AI
P
Phuc Khanh Lam
T
Trung Hieu Vo
H
Hai Do-Quoc Nguyen
H
Hung-Yi Chi
Y
Yu‐Jane Sheng *
H
Heng‐Kwong Tsao *
DOI：10.1039/D6TA01490Adelete
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Abstract

Abstract

En 中文
Eutectogels constitute a new class of soft materials; integrating the most desirable characteristics of traditional gels and offering broad versatility across numerous applications. However; the development of thermo-responsive eutectogels; particularly those capable of thermally switchable transparency; remains highly challenging. In this study; a smart thermo-responsive eutectogel (STE) is fabricated using an N-isopropylacrylamide/metal salt-based deep eutectic solvent. Leveraging multiple hydrogen-bonding and coordination interactions; the STE displays excellent mechanical properties; achieving a tensile strength of 2.7 MPa. Notably; the STE demonstrates an upper critical solution temperature; undergoing a reversible transition from an opaque to a transparent state during the heating–cooling cycle. This unique feature enables its integration into various smart display systems. In addition to inherent self-adhesiveness and water-detachable characteristics; the STE exhibits thermally enhanced adhesion upon heating; demonstrating tunable adhesive behavior. The eutectogel also functions as a reliable strain sensor capable of detecting human motions; such as finger movements; over a wide temperature range. Furthermore; the STE possesses remarkable thermally assisted self-healing capability; ensuring both safety and long-term usability. Consequently; this work establishes a key foundation for the development of thermo-responsive and multifunctional eutectogels for next-generation smart display and wearable technologies.
Keywords:
thermo-responsive eutectogel
switchable transparency
dynamic interactions
smart display
strain sensor

Journal

J
j. mater. chem. a
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0
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1.6K
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I
International University
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U
University of Taipei
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N
National Central University
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1.0W
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national taiwan university
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