Enabling Multimodal Luminescence in a Single Nanoparticle for X-ray Imaging Encryption and Anticounterfeiting

Nano Letters, Journal Year: 2024, Volume and Issue: 24(31), P. 9691 - 9699

Published: July 25, 2024

Multimodal luminescent materials hold great promise in a diversity of frontier applications. However, achieving the multimodal responsive luminescence at single nanoparticle level, especially besides light stimuli, has remained challenge. Here, we report conceptual model to realize by constructing both mechanoluminescence and photoluminescence nanoparticle. We show that lanthanide-doped fluoride nanoparticles are able produce excellent through X-ray irradiation, color-tunable becomes available selecting suitable lanthanide emitters core–shell–shell structure. Furthermore, design multilayer core–shell nanostructure enables emissions including radioluminescence, persistent luminescence, mechanoluminescence, upconversion, downshifting, thermal-stimulated simultaneously under multichannel excitation stimuli. These results provide new insights into mechanism induced nanocrystals contribute development smart toward imaging encryption, stress sensing, anticounterfeiting.

Language: Английский

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An Artificial Intelligence-Assisted Flexible and Wearable Mechanoluminescent Strain Sensor System

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Nov. 15, 2024

Abstract The complex wiring, bulky data collection devices, and difficulty in fast on-site interpretation significantly limit the practical application of flexible strain sensors as wearable devices. To tackle these challenges, this work develops an artificial intelligence-assisted, wireless, flexible, mechanoluminescent sensor system (AIFWMLS) by integration deep learning neural network-based color processing (CDPS) with a sandwich-structured (SFLC) film. SFLC film shows remarkable robust performance simple structure for easy fabrication. CDPS can rapidly accurately extract interpret to values auto-correction errors caused varying temperature, which improves accuracy predicted strain. A smart glove demonstrates great potential AIFWMLS human gesture recognition. Moreover, versatile also serve encryption device. intelligence provides promising strategy break “color value” bottleneck that hinders colorimetric sensors, could promote development from laboratory research consumer markets.

Language: Английский

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Trap Assisted Dynamic Mechanoluminescence Toward Self‐Referencing and Visualized Strain Sensing

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Strain sensors utilizing mechanoluminescent (ML) materials have garnered significant attention and application due to their advantages, such as self‐powering, non‐contact operation, real‐time response. However, ML‐based strain sensing techniques typically rely on the establishing of a mathematical relationship between ML intensity mechanical parameters. The absolute is vulnerable environmental factors, which can result in measurement errors. Herein, an color‐resolved visualized dynamic self‐referencing investigated Ca 9 Al(PO 4 ) 7 : Tb 3+ , Mn 2+ . By analyzing performance under various stimulations adjustable parameters, ratio /Mn aimed bed established. This will enable development technology. Through comparison luminescence characteristics continuous stimulation (stretching) X‐ray irradiation, it discovered that ratiometric primarily driven by filling release carriers form traps, compensates for Leveraging (from green red) characteristics, scenario monitoring human joint movement developed. approach offers new insights into use human‐machine interaction.

Language: Английский

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Local electric field-induced mechanoluminescence caused by disordered occupation of Mg2+ and Ga3+: Tunable luminescence performance and its applications

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159500 - 159500

Published: Jan. 11, 2025

Language: Английский

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Synthesis of SrZnOSe Crystals with Low Phonon Energy for Enhancing Near‐Infrared Mechanoluminescence

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Near-infrared (NIR) light is promising for bioimaging and information technology due to its high penetration ability resistance interference with environmental radiation. Here, a new class of lanthanide-doped SrZnOSe crystals are developed the self-sustainable generation NIR emissions under mechanical excitation. It shown that render ≈5-fold stronger than well-established CaZnOS low phonon energies selenide host, as confirmed by Raman spectroscopy. The potential utility demonstrated integration mouthguard, which can generate bright bite force transmit encrypted optical signals through thick tissues (up 8 mm) in ambient environments. findings provide powerful addition toolbox self-recovery mechanoluminescent materials open possibilities applied research.

Language: Английский

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Flexible mechano-optical sensors from mechanoluminescence to mechanoplasmonics: designs, applications, and prospects

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review summarizes the mechanisms, developments, and applications of flexible mechano-optical sensors using mechanoluminescence mechanoplasmonics for robust sensing applications, while addressing challenges prospects their integration.

Language: Английский

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Multi-modal emissions from trinary active centers in piezoelectric semiconductor materials for intelligent sensing of stress and temperature

Journal of Materiomics, Journal Year: 2025, Volume and Issue: unknown, P. 101073 - 101073

Published: May 1, 2025

Language: Английский

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Exploring Mechanoluminescence of Zinc Alkaline Earth Metal Oxysulfides from Fundamentals to Advanced Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 11, 2024

Abstract Mechanoluminescent (ML) materials convert mechanical stimuli into light emission, enabling applications in stress distribution visualization, structural health monitoring, biomechanical imaging, and sono‐optogenetics. Achieving efficient full‐spectrum ML represents a long‐standing challenge. Zinc alkaline earth metal oxysulfides, namely CaZnOS, SrZnOS, BaZnOS, SrZn 2 S O, have emerged as prominent contenders this field due to their exceptional properties. These feature low‐stress thresholds for emission activation, high intensity without the need irradiation charging, tunable spectra ranging from visible near‐infrared, thus advancing research broadening application possibilities. Here, comprehensive review of significant advancements made on zinc oxysulfides over past decade, encompassing synthesis, characterization, mechanisms, promising is presented. Special attention focused addressing conflicting reports generation conditions, recent progress accurately characterizing performance, understanding mechanical‐to‐optical conversion processes. Future directions fundamental challenges translating these practical are also discussed.

Language: Английский

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Regulating Broadband Near‐Infrared Mechanoluminescence via Energy‐Level Engineering for Potential Biomechanical Imaging

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 9, 2024

Abstract Near‐infrared mechanoluminescent (NIR ML) materials have attracted attention due to their advantages, such as in situ and real‐time monitoring of biomechanical information vivo. However, most ML are focused on the UV–vis light range, which limits potential applications biological field. In this work, a broadband NIR material Ca 2 YGa 3 Ge O 12 : 0.10Cr 3+ (CYGGG: ) is successfully prepared by chemical co‐substitution Cr heavy doping. Density functional theory (DFT) calculations used determine type defects material, composite formed interstitial oxygen (i ′′) antisite (Ca Y ′ ‐ °) mostly dominate ML. ions act electronic bridges regulate energy levels, becoming key turning Nd ion's Finally, based excellent properties CYGGG: , 0.01Nd composites can penetrate pork tissues different compositions/thicknesses under stress loads. Potentially, work tries realize tissue imaging, providing new way for application materials.

Language: Английский

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Pr³⁺-Activated LiTaO₃ Crystal for a Dual-Mode and Dual-Channel Versatile Luminescence Thermometer

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

To cater to the requirements of integrated temperature sensing for diverse applications in optoelectronics and biomedicine, a dual-mode dual-channel versatile thermometry strategy was proposed by utilizing Pr3+-activated luminescence. Stemming from population reallocation via intervalence charge transfer state, different thermal responds two sets emissions originating 3P0 1D2 were observed important photoelectric material LiTaO3. The fluorescence intensity ratio modes R616/510 R713/764 offered visible near-infrared spectral channels, respectively, various scenarios. relatively sensitivities (SR) further improved with maximum values 0.70 %K–1 0.41%K–1, optimizing choice ranges. Moreover, complementary lifetime mode excelled at higher temperatures SR 0.42% K–1. Therefore, LiTaO3 enabled high-performance wide ranges, providing future possibility its integration within variety optoelectronic biomedical devices.

Language: Английский

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