3D Anti-Counterfeiting strategies based on the bidirectional competitive shape memory of asymmetric photonic crystals

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159708 - 159708

Published: Jan. 1, 2025

Language: Английский

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Unclonable Encryption‐Verification Strategy Based on Bilayer Shape Memory Photonic Crystals

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

The ability to reversibly exhibit structural color patterns has positioned photonic crystals (PCs) at the forefront of anti-counterfeiting. However, security offered by mere reversible display is susceptible illicit alteration and disclosure. Herein, inspired electronic message captcha, bilayer crystal (BPC) systems with integrated decryption verification modules, are realized combining inverse opal (IO) double (DIO) polyacrylate polymers. When informationized BPC immersed in ethanol or water, DIO layer displayed encrypted information due solvent-induced ordered rearrangement polystyrene (PS) microspheres. step established based on different colors IO pattern, which result from deformation recovery macroporous skeleton induced solvent evaporation. Moreover, through evaporation-induced random self-assembly PS@SiO

Language: Английский

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Anti-smudge superhard transparent coatings via ultra-small nanoparticle pattern surfaces

iScience, Journal Year: 2025, Volume and Issue: 28(3), P. 111996 - 111996

Published: Feb. 12, 2025

Anti-smudge coating materials have a broad prospect, but they are susceptible to wear from nails and sand. Therefore, the potential application of such coatings on glass substrates needs features as superhardness high transparency. However, realizing these key properties combined with anti-smudge function is significantly challenging. In this work, we show conceptional nanoparticle pattern designing strategy materials, inspired by stepping cobblestone roads foot feeling only hardness stones. Realize surface "cobblestone roads" via facile scalable interfacial reactions within molecular compatible system, successfully achieve desired material including anti-smudge, superhardness, The was composed tensely crosslinked sub-10 nm building blocks that bear an layer, exhibiting undistinguished inorganic phase behavior when it subjected external forces contact point micro- or above 10 nanoscale.

Language: Английский

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Sub‐10‐nm Lithography for Sn4–Oxo Clusters: Effect of Molecular Polarity on Sensitivity and Resolution

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Tin‐based metal–oxo clusters have recently garnered considerable attention in high‐energy irradiation lithography because of their nanoscale patterning capabilities. However, achieving sub‐10 nm resolution remains a challenge due to uncontrolled latent image gradients after exposure. In this study, the development mechanism Sn4–oxo cluster is investigated using molecular polarity index model. Resolutions 8 and 17 are successfully achieved for Sn4‐TF electron beam (EBL) extreme ultraviolet (EUVL), respectively. A novel pre‐irradiation modification strategy proposed enhance sensitivity by one‐third both EBL EUVL. The experimental findings theoretical analysis demonstrate that deep (DUV) primarily degrades organic ligands promotes Sn–O–Sn crosslinking, whereas EUVL drive hydrocarbon crosslinking among clusters. This study deepens our understanding Sn–oxo photolithographic reaction mechanisms, offering critical insights optimizing developers enhancing sensitivity. These expected aid realization node technology.

Language: Английский

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Synthesis and Properties of Heat-resistant Polyimides Films Containing Crosslinkable Group-tetrafluorostyrene

Chinese Journal of Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Language: Английский

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Chameleon-inspired structural color fabrics with photoelectric dual-signal outputs for human motion monitoring

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137538 - 137538

Published: April 1, 2025

Language: Английский

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Emerging Frontiers of Conductive Supramolecular Hydrogels in Biomedical Applications

Published: April 1, 2025

Language: Английский

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Preparation of a self‐supported zeolite glass composite membrane for CO₂/CH₄ separation

Smart Molecules, Journal Year: 2024, Volume and Issue: 2(3)

Published: July 11, 2024

Abstract The low porosity of metal‐organic framework glass makes it difficult to prepare membranes with high permeability. To solve this problem, we fabricated a series self‐supported zeolite composite different 4A loadings using the abundant pore structure zeolite. embedded in membrane preserved ligand bonds and chemical structure. exhibited good interfacial compatibility. More importantly, incorporation significantly improved CO 2 adsorption capacity pure g ZIF‐62 membranes. In addition, gas separation performance measurements showed that (a ZIF‐62) 0.7 (4A) 0.3 had permeability 13,329 Barrer for an ideal selectivity 31.7 /CH 4 , which exceeded Robeson's upper bound. operational stability variable pressure test 48 h long‐term continuous test. This study provides method preparing

Language: Английский

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Bioinspired Colorimetric Double Inverse Opal Photonic Crystal Indicators for Ethanol Concentration Sensing in Fermentation Engineering

Langmuir, Journal Year: 2024, Volume and Issue: 40(21), P. 11184 - 11195

Published: May 15, 2024

Photonic crystal-based ethanol concentration indicators with rapid response and brilliant structural color output definitely take a place in colorimetric sensors. Here, based on the H-bond-regulated swelling of acrylate shape memory polymers (SMPs) solvent-induced change double inverse opal photonic crystals (DIOPCs), new-type (PCs) were constructed, exhibiting span maximum reflection wavelength (λmax) up to ∼166 nm alcohols concentrations from 0 100 vol %. DIOPC (DIOPCIs) show (<1.5 s) different colors (covering blue red). The sensing mechanism includes solvent-triggered recovery skeleton, cosolvency effect H-bonds induced swelling/shrinkage polymer, phase separation between polystyrene (PS) microsphere polymer light diffraction DIOPCs. While ensuring larger λmax by regulating H-bond interactions chains through acrylamide (AAm), AAm-modified DIOPCIs are sensitive some specific concentrations. real-time during fermentation verified practicability DIOPCIs, thus establishing visual model corresponding kinetics. We envisage that will contribute intelligentization alcoholic distillation industry.

Language: Английский

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Cisplatin‐coordinated copolythiophene for synergistic chemotherapy and sonodynamic therapy of tumor

Smart Molecules, Journal Year: 2024, Volume and Issue: unknown

Published: June 7, 2024

Abstract Sonodynamic therapy (SDT) is a novel cancer treatment type showing the advantages of high tissue penetration ability, non‐invasion, low systemic toxicity, and selectivity. However, SDT depends on ultrasound (US) irradiation; once US turned off, sonosensitizer will stop producing reactive oxygen species (ROS). Moreover, most sonosensitizers generate oxygen‐dependent ROS, that is, singlet ( 1 O 2 ), significantly limiting therapeutic effect in treating deep hypoxic tumor. Therefore, combining with other modalities essential. Here, we designed synthesized series cisplatin‐coordinated copolythiophenes CPT‐Pts simultaneously generating , superoxide anion, hydroxyl radicals for synergistic chemotherapy The sonodynamic toxicity cytotoxicity were accurately regulated by tuning monomer ratio polythiophene. This copolymerization strategy avoids side effects originating from high‐dose drug while making up relying ultrasonic activation, effectively inhibiting cells tumors.

Language: Английский

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