Stimulus-responsive polymer materials toward multi-mode and multi-level information anti-counterfeiting: recent advances and future challenges

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 53(2), P. 606 - 623

Published: Dec. 15, 2023

This review highlights the recent advances and discusses challenges perspectives of stimulus-responsive polymer (SRP)-based information-storage materials, which exhibit multi-mode or multi-level anti-counterfeiting performance.

Language: Английский

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Photoswitchable and Reversible Fluorescent Eutectogels for Conformal Information Encryption

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(46)

Published: Oct. 4, 2023

Smart fluorescent materials that can respond to environmental stimuli are of great importance in the fields information encryption and anti-counterfeiting. However, traditional usually face problems such as lack tunable fluorescence insufficient surface-adaptive adhesion, hindering their practical applications. Herein, inspired by glowing sucker octopus, we present a novel strategy fabricate reversible eutectogel with high transparency, adhesive self-healing performance for conformal Using anthracene luminescent unit, exhibits photoswitchable therefore be reversibly written/erased patterns non-contact stimulation. Additionally, different from mechanically irreversible adhesion via glue, adhere various irregular substrates over wide temperature range (-20 65 °C) conformally deform more than 1000 times without peeling off. Furthermore, exploiting transparency good stretchability eutectogel, dual achieved under UV stretching conditions further improve security level. This study should provide promising future development advanced intelligent anti-counterfeiting materials.

Language: Английский

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Stimuli‐responsive photonic actuators for integrated biomimetic and intelligent systems

Deleted Journal, Journal Year: 2023, Volume and Issue: 1(1)

Published: July 27, 2023

Abstract Photonic actuators, serving as an emerging kind of intelligent stimuli‐responsive material, can exhibit the abilities to change their structural colors/fluorescence and shapes under specific external stimuli, which have demonstrated essential applications in fields soft robotics, sensors, bionics, information storage, anti‐counterfeiting, energy harvesting. In this review, we reported state‐of‐the‐art research progress photonic actuators classified on basis material type focusing actuation mechanisms, design principles, processing techniques. We also broadly summarized relative robots, so on. Finally, a vision for challenges area future promising directions is presented.

Language: Английский

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Entanglement in Smart Hydrogels: Fast Response Time, Anti‐Freezing and Anti‐Drying

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(21)

Published: March 14, 2023

Abstract The common techniques to improve hydrogel's mechanical properties include increasing crosslinking density and forming crosslinked double‐network hydrogel, which may cause some hydrogels lose their smart functionalities. Inspired by entanglement‐induced strengthening, a simple approach introducing hydroxypropyl cellulose (HPC) fibers entangled with different hydrogel matrix systems are reported. Different from the conventional methods hinder movement of polymer network, through entanglement HPC fibers, composite shows both improved Young's modulus toughness more importantly functionalities including response speed, anti‐drying, anti‐freezing capabilities cycle stability. This strategy provides new design rule fabricate durable strengthened can be used in windows, sensors, soft robots.

Language: Английский

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Robust integration of polymerizable perovskite quantum dots with responsive polymers enables 4D-printed self-deployable information display

Matter, Journal Year: 2023, Volume and Issue: 6(4), P. 1278 - 1294

Published: March 3, 2023

Language: Английский

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3D printing of stimuli-responsive hydrogel materials: Literature review and emerging applications

Giant, Journal Year: 2023, Volume and Issue: 17, P. 100209 - 100209

Published: Nov. 15, 2023

Additive manufacturing (AM) aka three-dimensional (3D) printing has been a well-established and unparalleled technology, which is expanding the boundaries of materials science exhibiting an enormous potential to fabricate intricate geometries for healthcare, electronics, construction sectors. In contemporary era, combination AM technology stimuli-responsive hydrogels (SRHs) helps create dynamic functional structures with extreme accuracy, are capable changing their shape, functional, or mechanical properties in response environmental cues such as humidity, heat, light, pH, magnetic field, electric etc. 3D SRHs permits creation on-demand dynamically controllable shapes excellent control over various self-repair, self-assembly, multi-functionality, These accelerate researchers think unthinkable applications. Additively manufactured objects have shown applications like tissue engineering, drug delivery, soft robots, sensors, other biomedical devices. The current review provides recent progress SRHs, more focus on techniques, stimuli mechanisms, shape morphing behaviors, Finally, trends future roadmap additively smart different also presented, will be helpful research. This holds great promise providing fundamental knowledge about diverse

Language: Английский

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A temperature and pressure dual-responsive, stretchable, healable, adhesive, and biocompatible carboxymethyl cellulose-based conductive hydrogels for flexible wearable strain sensor

Biosensors and Bioelectronics, Journal Year: 2023, Volume and Issue: 246, P. 115893 - 115893

Published: Nov. 30, 2023

Language: Английский

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Multimodal dynamic and unclonable anti-counterfeiting using robust diamond microparticles on heterogeneous substrate

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: May 2, 2023

The growing prevalence of counterfeit products worldwide poses serious threats to economic security and human health. Developing advanced anti-counterfeiting materials with physical unclonable functions offers an attractive defense strategy. Here, we report multimodal, dynamic labels based on diamond microparticles containing silicon-vacancy centers. These chaotic are heterogeneously grown silicon substrate by chemical vapor deposition, facilitating low-cost scalable fabrication. intrinsically introduced the randomized features each particle. highly stable signals photoluminescence from centers light scattering can enable high-capacity optical encoding. Moreover, time-dependent encoding is achieved modulating via air oxidation. Exploiting robustness diamond, developed exhibit ultrahigh stability in extreme application scenarios, including harsh environments, high temperature, mechanical abrasion, ultraviolet irradiation. Hence, our proposed system be practically applied immediately as diverse fields.

Language: Английский

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Ln‐MOF‐Based Hydrogel Films with Tunable Luminescence and Afterglow Behavior for Visual Detection of Ofloxacin and Anti‐Counterfeiting Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(19)

Published: Jan. 26, 2024

Abstract Highly selective and sensitive quantitative detection of ofloxacin (OFX) at ultralow concentrations in aqueous media development new afterglow materials remains a challenge. Herein, 2D water‐stable lanthanide metal–organic framework (NIIC‐2‐Tb) is proposed, which exhibits high selectivity towards OFX through the luminescence quenching with lowest limit (1.1 × 10 −9 M ) reported to date fast response within 6 s. In addition, luminescent by NIIC‐2‐Tb not affected typical components blood plasma urine. The excellent sensing effect further utilized prepare composite functional carrageenan hydrogel material for rapid meat real time first discovery impressive MOF‐based hydrogels. This study only presents novel Ln‐MOF Ln‐MOF‐based films OFX, but also demonstrates color‐tunable afterglow, expands application anti‐counterfeiting.

Language: Английский

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A Dual‐Responsive Liquid Crystal Elastomer for Multi‐Level Encryption and Transient Information Display

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(48)

Published: Oct. 11, 2023

Abstract Information security has gained increasing attention in the past decade, leading to development of advanced materials for anti‐counterfeiting, encryption and instantaneous information display. However, it remains challenging achieve high with simple procedures low‐energy stimuli. Herein, a series strain/temperature‐responsive liquid crystal elastomers (LCEs) are developed dual‐modal, multi‐level real‐time, rewritable transient The as‐prepared polydomain LCEs can change from an opaque state transparent under strain or temperature stimuli, transition strains temperatures highly dependent on concentration long‐chain flexible spacers. encrypted by different LCE inks be decrypted specific temperatures, protection security. Furthermore, combination phase photothermal effect multi‐walled carbon nanotubes (MWCNTs), we achieved repeatable display using near‐infrared (NIR) light as pen writing. This study provides new insight into versatility broad applications.

Language: Английский

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