Photorewriting, Time-Resolved Encryption, and Unclonable Anticounterfeiting with Artificial Intelligence Authentication via a Reversible Photoswitchable System DOI
Jiandong Guo, Yu Gao, Mengyao Pan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: April 29, 2024

In the fields of photolithographic patterning, optical anticounterfeiting, and information encryption, reversible photochromic materials with solid-state fluorescence are emerging as a potential class systems. A design strategy for has been proposed synthesized through introduction photoactive thiophene groups into molecular backbone aryl vinyls, compounds unique aggregation-induced emission properties, photocontrollable color-changing properties. This work develops novel inks, films, cellulose hydrogels enhancing security encryption anticounterfeiting technologies. They achieve rapid color change under ultraviolet light irradiation. Dependent upon rate change, higher levels time-resolved can be achieved. feature is important confidentiality encrypted reliability labels. Color-changing hydrogels, films consisting three fluorescent molecules have quick photoactivity, great photoreversibility photostability, good processability, making them ideal time-delayed smart encryption. Furthermore, specialized algorithms used to construct convolutional neural networks, image analysis performed on these systems, thus solving current problem time-consuming decryption process. artificial intelligence method offers new opportunities enhanced data

Language: Английский

Force-triggered hypso- and bathochromic bidirectional fluorescence switching beyond 120 nm and its anticounterfeiting applications DOI Creative Commons
Ya Yin, Qiaoxin Guan, Zhao Chen

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(7)

Published: Feb. 16, 2024

Achieving high-contrast tricolor emissive regulation of a single-component molecule using single type external stimulus is highly desirable but challenging. In the present study, we report symmetric acceptor-donor-acceptor (A-D-A)–type aggregation-induced emission-active luminogen, which displays sequential fluorescence switching just by anisotropic mechanical grinding. Specifically, upon light grinding, an orange–yellow-to-blue hypsochromic mechanofluorochromic response with distinct color contrast (change in maximum emission wavelength, Δλ em,max = 122 nm) noticed, and slightly ground solid exhibits blue-to-red (Δλ 185 bathochromic conversion vigorous Thus, luminogen developed here, can realize wide-range > 100 hypso- mechanochromisms simultaneously. The tricolored phenomenon attributed to two different morphological transitions involving crystalline-to-crystalline crystalline-to-amorphous states. Furthermore, three information anticounterfeiting systems are presented here.

Language: Английский

Citations

99
Multiple Stimuli‐Response Polychromatic Carbon Dots for Advanced Information Encryption and Safety DOI

Youfusheng Wu,

Xiao Chen, Wei Wu

et al.

Small, Journal Year: 2023, Volume and Issue: 19(10)

Published: Jan. 15, 2023

Abstract Optical information encryption and safety have aroused great attention since they are closely correlated to data protection safety. The development of multiple stimuli‐response optical materials for constructing large‐capacity is very important practical applications. Carbon dots (CDs) many gratifying merits, such as polychromatic emission, diverse luminous categories, stable physicochemical properties, considered one the most ideal candidates protection. Herein, carbon core, functional groups, solvents, other crucial factors reviewed outputting emission categories. In particular, substrate engineering strategies been emphasized their critical role in yielding excellent features High‐capacity by relying on rich properties CDs, categories fluorescence, afterglow, upconversion, well external‐stimuli‐assisted changes. Some perspectives preparing CDs further developing security proposed. This review provides a good reference manipulation next‐generation

Language: Английский

Citations

72
Optical anti-counterfeiting and information storage based on rare-earth-doped luminescent materials DOI
Chengyun Zhang,

Qingxin Yin,

Shuangkang Ge

et al.

Materials Research Bulletin, Journal Year: 2024, Volume and Issue: 176, P. 112801 - 112801

Published: March 22, 2024

Language: Английский

Citations

31
Self‐Charging Persistent Mechanoluminescence with Mechanics Storage and Visualization Activities DOI Creative Commons
Yongqing Bai,

Xiuping Guo,

Birong Tian

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(28)

Published: Aug. 17, 2022

Abstract Persistent mechanoluminescence (ML) with long lifetime is highly required to break the limits of transient emitting behavior under mechanics stimuli. However, existing materials persistent ML are completely trap‐controlled, and a pre‐irradiation required, which severely hinders practical applications. In this work, novel type ML, self‐charging created by compositing Sr 3 Al 2 O 5 Cl :Dy 3+ (SAOCD) powders into flexible polydimethylsiloxane (PDMS) matrix. With no need for any pre‐irradiation, as‐fabricated SAOCD/PDMS elastomer could exhibit intense stimuli directly, greatly facilitates its applications in lighting, displaying, imaging, visualization. By investigating matrix effects as well thermoluminescence, cathodoluminescence, triboelectricity properties, interfacial triboelectrification‐induced electron bombardment processes demonstrated be responsible self‐charged energy SAOCD Based on unique processes, further exhibits storage visualized reading activities, brings ideas approaches deal mechanics‐related problems fields mechanical engineering, bioengineering, artificial intelligence.

Language: Английский

Citations

63
Highly Plasticized Lanthanide Luminescence for Information Storage and Encryption Applications DOI Creative Commons
Yawei Liu,

Kelu Zhao,

Yubin Ren

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(7)

Published: Jan. 12, 2022

Abstract The development of new storage media to meet the demands for diverse information scenarios is a great challenge. Here, series lanthanide‐based luminescent organogels with ultrastrong mechanical performance and outstanding plasticity are developed patterned encryption applications. possessing properties tunable colors prepared by electrostatic coordinative interactions between natural DNA, synthetic ligands, rare earth (RE) ions. organogel‐REs can be stretched 180 times show an breaking strength 80 MPa. A applications both encryption, such as self‐information pattern, quick response (QR) code, barcode, successfully demonstrated organogel‐REs. systems have various advantages good processability, high stretchability, excellent stability, versatile design patterns. Therefore, organogel‐RE‐based suitable under different scenarios, flexible devices repeating rude operations. advancements will enable scenarios.

Language: Английский

Citations

58
Rare-earth based materials: an effective toolbox for brain imaging, therapy, monitoring and neuromodulation DOI Creative Commons
Wei Zheng, Yawei Liu, Bo Li

et al.

Light Science & Applications, Journal Year: 2022, Volume and Issue: 11(1)

Published: June 10, 2022

Brain diseases, including tumors and neurodegenerative disorders, are among the most serious health problems. Non-invasively high-resolution imaging methods required to gain anatomical structures information of brain. In addition, efficient diagnosis technology is also needed treat brain disease. Rare-earth based materials possess unique optical properties, superior magnetism, high X-ray absorption abilities, enabling through magnetic resonance imaging, computed tomography fluorescence technologies. rare-earth can be used detect, treat, regulate diseases fine modulation their functions. Importantly, coupled with biomolecules such as antibodies, peptides, drugs overcome blood-brain barrier for targeted treatment. Herein, this review highlights rational design application in therapy, monitoring, neuromodulation. Furthermore, development prospect briefly introduced.

Language: Английский

Citations

49
Regulable Mixed‐Solvent‐Induced Phase Separation in Hydrogels for Information Encryption DOI
Min Li,

Honglang Lu,

Xiaoyu Wang

et al.

Small, Journal Year: 2022, Volume and Issue: 18(52)

Published: Nov. 4, 2022

Abstract The rapid progress of information technology is accompanied by plenty embezzlement and forgery, but developing advanced encryption technologies to ensure security remains challenging. Phase separation commonly leads a dramatic change in the transmittance hydrophilic polymer networks, which potential method for often neglected. Here, taking polyacrylamide (PAAm) hydrogel system as typical example, facilely adjustable decryption via its regulable phase process ethanol/water mixed solvent, are reported. By controlling osmotic pressure external internal environment, it demonstrated that diffusion coefficient during deswelling reswelling, well corresponding gel, can be controlled. Relatively high initial gel slow remixing phase‐separated opening opportunity applying reversible device. As proof‐of‐concept demonstrations, several stable systems making use gels designed, expected inspire development next‐generation soft devices technology.

Language: Английский

Citations

45
Muscle-Mimetic Highly Tough, Conductive, and Stretchable Poly(ionic liquid) Liquid Crystalline Ionogels with Ultrafast Self-Healing, Super Adhesive, and Remarkable Shape Memory Properties DOI
Tianci Li, Fang Liu,

Xuemeng Yang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(25), P. 29261 - 29272

Published: June 14, 2022

Here, we report a simple method for preparing muscle-mimetic highly tough, conductive, and stretchable liquid crystalline ionogels which contains only one poly(ionic liquid) (PIL) in an ionic via situ free radical photohomopolymerization by using nitrogen gas instead of air atmosphere. Due to eliminating the inhibition caused dissolved oxygen, polymerization under has much higher molecular weight, lower critical sol-gel concentration, stronger mechanical properties. More importantly, benefiting from unique loofah-like microstructures along with strong internal interactions, entanglements long PIL chains domains, show special optical anisotropic, superstretchability (>8000%), high fracture strength (up 16.52 MPa), toughness 39.22 MJ/m3), have ultrafast self-healing, ultrastrong adhesive, excellent shape memory its stretchability good conductive-strain responsiveness, as-prepared ionogel can be easily applied high-performance flexible wearable sensors motion detecting. Therefore, this paper provides effective route developed generate conductive ionogels/elastomers that used widespread electronics.

Language: Английский

Citations

41
Cellulose Luminescent Hydrogels Loaded with Stable Carbon Dots for Duplicable Information Encryption and Anti-counterfeiting DOI

Juan Wang,

Peng Du, Yu‐I Hsu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(27), P. 10061 - 10073

Published: June 28, 2023

Luminescent hydrogels with flexibility and biocompatibility have attracted considerable interest in anti-counterfeiting application. However, conventional luminous substance is prone to release into the surrounding environment, causing accumulation biotoxicity. The green synthesis of repeatable fluorescent materials from biomass remains challenging. Herein, we report assembly nano-cellulose hydrogel doped naturally originated multiple active sited carbon dots (CDs) demonstrate sustainable usage information encryption. problem CDs leaching matrix was solved via strong chemical interactions between cellulose nanofibers. facilely prepared showed extraordinary mechanical properties fatigue resistance (i.e., stress, compressive modulus, toughness were up 1607.30 kPa, 368.33 191.54 kJ/m3, respectively). Furthermore, this cellulose-based gel displayed bright fluorescence under UV light, which could be quenched by Fe3+ ions recovered an ascorbic acid/EDTA-2Na mixture solution. Therefore, coded can easily input interpreted ionoprinting technique, realizing a simple display erasing procedure. This elaborately designed biomimetic serve as effective communication media improve security expand critical applications optoelectronic storage devices.

Language: Английский

Citations

31
Optimized Photochromic Performance of Spiropyran through Incorporation into Hydrogen-Bonded Organic Frameworks and Applications in Anticounterfeiting and Information Encryption DOI
Yangyang Gao,

Qiuna Li,

Haitao Cai

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Photostimulus-responsive fluorescent materials are promising for anticounterfeiting and UV printing due to rapid response simple preparation. In this paper, we propose a novel strategy prepare photostimulus-responsive SP@HOF-olefin by integrating the photochromic molecule spiropyran (SP) with postsynthetic modified hydrogen-bonded organic frameworks (HOF-olefin). Compared SP@HOF, composites exhibit enhanced properties, such as fast speed, pronounced color contrast, exceptional fatigue resistance. The improvements can be attributed reduction of residual carboxyl groups in framework, which subsequently decreases polarity framework. Besides, SP loading content was significantly enhanced. Furthermore, HOF-olefin transformed into HOF films via photopolymerization. These demonstrated excellent flexibility, folded twisted at any angle ranging from 0 180°. By utilizing photomask method, letters "Z", "T", "S", "U", along other patterns were successfully imprinted on film. investigated utilization these advanced applications. This work serves representative case demonstrating how functionalized HOFs improved properties SP, showcasing potential applications information encryption.

Language: Английский

Citations

1