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Chen WC, Liu XL, Liu Q, Zheng F, Xing L, Wu QE, Lian ZX, Zheng PY, Zhang Y, Ji S, Huo Y. A new dicyanophenanthrene-based thermally activated delayed fluorophore: Design, synthesis, photophysical study, and electroluminescence application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124808. [PMID: 39024786 DOI: 10.1016/j.saa.2024.124808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/27/2024] [Accepted: 07/09/2024] [Indexed: 07/20/2024]
Abstract
A novel thermally activated delayed fluorescence (TADF) emitter, DCNP-SCF, is developed based on a dicyanophenanthrene acceptor. DCNP-SCF is prepared by a simple C-N coupling reaction. Its thermal, theoretical, photophysical, and electroluminescent properties are investigated, emphasizing its potential in organic electroluminescence devices. DCNP-SCF demonstrates highly distorted donor-acceptor conformation, facilitating significant TADF for efficient triplet harvesting in electroluminescence devices. Additionally, due to the moderate electron push-pull effect, DCNP-SCF exhibits appropriate intramolecular charge transfer for considerable photoluminescence quantum yield for electroluminescence applications.
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Affiliation(s)
- Wen-Cheng Chen
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China.
| | - Xiao-Long Liu
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Qiang Liu
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Fan Zheng
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Longjiang Xing
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Qiao-Er Wu
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Zi-Xian Lian
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Pei-Yan Zheng
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Yuzhen Zhang
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning, PR China
| | - Shaomin Ji
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Yanping Huo
- Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang, PR China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China; Analytical & Testing Center, Guangdong University of Technology, Guangzhou, PR China.
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2
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Yang Z, Spencer LD, Zhang H, Burmood ZL, Putta A, Jiang C. Dynamic Luminescence of Lead-Doped Calcium Zinc Germanate Clinopyroxene for Multimode Anticounterfeiting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16418-16426. [PMID: 38501759 DOI: 10.1021/acsami.3c16016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Anticounterfeiting plays an essential role in authenticating genuine documents and combating forged products. To further advance the anticounterfeiting technology, there is a strong demand to design new functional materials with unique properties that will be appropriate for making multimode complex security labels. Recently, dynamic security labels have emerged as a new type of advanced anticounterfeiting method as they can hold a much higher security level than the traditional static ones. In this work, we report that calcium zinc germanate (CZGO) clinopyroxenes doped with lead ions have several interesting optical properties, such as dynamic fluorescence, long persistent luminescence, and photochromism. We find that the concentration of lead dopants can significantly impact the reaction kinetics as well as the crystallinity and luminescence properties of CZGO phosphors. By fully utilizing these unique properties, we have successfully fabricated several security labels with multilevel information encoding and dynamic optical performance. The combination of multimode and dynamic luminescence makes these labels extremely challenging to illegally duplicate. With further optimization, this lead-doped CZGO clinopyroxene can be well-integrated into modern anticounterfeiting techniques that will generate highly secure anticounterfeiting labels to combat fake products.
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Affiliation(s)
- Zishen Yang
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - Levi D Spencer
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - Huixin Zhang
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - Zachary L Burmood
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - Anjaneyulu Putta
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
| | - Chaoyang Jiang
- Department of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
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3
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Wang Z, Meng F, Kong M, Guo X, Zhang S, Zhang Y, Tang B. 2D Information Security System Based on Polyurethane Inverse Photonic Glass Structure. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305825. [PMID: 37699756 DOI: 10.1002/smll.202305825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/19/2023] [Indexed: 09/14/2023]
Abstract
Information security has become a major global problem in recent years. Thus, people continue to exert much effort in developing new information security technologies based on encryption and storage. In this study, a 2D information security technology based on polyurethane optical devices with inverse photonic glass structure (PU-IPG) is introduced. Based on 1) the swelling and plasticizing effects of various solvents on PU-IPG and 2) the capillary force that can produce geometric deformation on micro/nanostructures when solvents evaporate, a 2D information security system with two modules of decryption (structural color information display) and anticounterfeiting (structural color transformation) is successfully constructed. The spraying method adopted can be simple and fast and can provide a large area to build photonic glass templates, which greatly improves the capacity and category of information in the encryption system. The prepared PU-IPG optical devices can produce large-area multicolor output capability of information. These devices also have excellent mechanical properties, strong cycle stability, environmental friendliness, and low price. Therefore, the preparation strategy has great reference value and application prospects in the field of information security.
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Affiliation(s)
- Zhenzhi Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Fantao Meng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Miao Kong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiaoyu Guo
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yuang Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Bingtao Tang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
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4
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Liu S, Liu X, Zhu X, Yin J, Bao J. Multiple-Channel Information Encryption Based on Quantum Dot Absorption Spectra. ACS NANO 2023; 17:21349-21359. [PMID: 37883096 DOI: 10.1021/acsnano.3c06050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Large-capacity information encryption has attracted significant interest in the information age. The diversity and controllability of spectra have positioned them to be widely applied for information encryption. Current spectra-based information encryption methods commonly rely on either spectral alteration induced by external stimuli or the utilization of narrowband channels within spectra. However, these methods encounter a common challenge in attaining both high security and large capacity simultaneously. To address these issues, we propose a multiple-channel information encryption system based on quantum dot (QD) absorption spectra. The diversity of QD absorption spectra and their broadband features ensure that the encrypted spectra can hardly be decrypted without knowing the correct channel matrix. Meanwhile, the large capacity is realized through the combination of multiple QD spectral channels with a theoretical maximum capacity of 24.0 bits in a single spectrum. In order to optimize the performance of our proposed system, the selection principle of the channel matrix is established to achieve the rapid identification of the optimal channel matrix in several milliseconds. The additivity of QD spectral channels and the consistency of QD spectra are also explored to minimize the impact of errors on information decryption. Furthermore, two spectral encryption scenarios of spatial pattern and spectral pattern are applied to demonstrate the feasibility, showcasing their ability to achieve both a high level of security and large capacity. Owing to the advantages offered by QD spectra, the QD spectra-based information system exhibits excellent potential for broader applications in information storage, authentication, and computing.
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Affiliation(s)
- Senyang Liu
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaohu Liu
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Xueyu Zhu
- Department of Mathematics, University of Iowa, Iowa City 52242, Iowa, United States
| | - Jinhua Yin
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
| | - Jie Bao
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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5
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Removski N, Wolf MO. The unexpected effect of ferrocenyl substituents on the photochemistry of dianthryl sulfoxides. Chem Commun (Camb) 2023; 59:13006-13009. [PMID: 37830327 DOI: 10.1039/d3cc04345b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Photoexcitation of ferrocenyl substituted dianthryl sulfoxide results in photochemical reaction products that differ from all known compounds of this class. This is enabled by energy transfer to a low-lying state, even in the case of the oxidized ferrocenium-containing compound.
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Affiliation(s)
- Nicole Removski
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
| | - Michael O Wolf
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
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6
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Harrington K, Hogan DT, Sutherland TC, Stamplecoskie K. Photophysical investigation into room-temperature emission from xanthene derivatives. Phys Chem Chem Phys 2023; 25:24829-24837. [PMID: 37671931 DOI: 10.1039/d3cp02802j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The photophysical consequences of replacing the nitrogen heteroatom in phenothiazine with methylene are investigated for both solutions and crystalline solids. We analysed the excited state dynamics of four xanthene derivatives and observed an anomalous fluorescence from an energy level higher than the S1 state with lifetimes between 2.8 ns and 5.8 ns in solution and as solids. Additionally, the solid-state xanthene derivatives exhibited long-lived emission consistent with a triplet excited state, displaying millisecond lifetimes that ranged from 0.1 ms to 3.4 ms at ambient temperature in air. Our findings were supported by optical studies, crystallographic structural analyses, and DFT computations, which corroborated the photophysical measurements. It was concluded that the presence of the nitrogen atom in phenothiazine is crucial for achieving ultra-long emission lifetimes and that these results contribute to a deeper understanding of excited state dynamics which have potential implications for applications, such as display technologies, anticounterfeiting technologies, and sensors.
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Affiliation(s)
| | - David T Hogan
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, T3G 1M1, Canada.
| | - Todd C Sutherland
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, T3G 1M1, Canada.
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7
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Riesen N, Priest C, Lancaster DG, Badek K, Riesen H. Ultra-high-resolution greyscale fluorescence images via UV-exposure of thin flexible phosphor films. NANOSCALE 2023; 15:4863-4869. [PMID: 36728632 DOI: 10.1039/d2nr02931f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Thin films of BaFCl:Sm nanocrystals prepared using a polymer binder were used to create fluorescence images. The phosphor films were exposed to a UV-C mercury lamp light source via chromium-coated quartz greyscale masks to create 4 μm resolution greyscale fluorescence images. The mechanism relies on the highly efficient conversion of Sm3+ to Sm2+ ions upon exposure to UV-C light which displays a large linear dynamic range. The red fluorescence around 688 nm of the Sm2+ is then read-out using blue-violet illumination under a laser scanning confocal microscope. The greyscale images with 16 greyscale levels had a resolution equivalent to ∼125 line pairs per mm or ∼6400 dpi. Improvements in the resolution would be possible using collimated UV-C laser exposure of the film or the use of higher resolution photomasks. Ultra-high resolution binary fluorescence images were also created with resolutions down to 2 μm (∼250 line pairs per mm, ∼12 700 dpi). Downstream applications of the technology could include tailored covert or overt anti-counterfeiting labelling.
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Affiliation(s)
- Nicolas Riesen
- University of South Australia, STEM, Future Industries Institute, Mawson Lakes, SA 5095, Australia.
- Institute for Photonics and Advanced Sensing (IPAS) and School of Physical Sciences, The University of Adelaide, SA 5005, Australia
| | - Craig Priest
- University of South Australia, STEM, Future Industries Institute, Mawson Lakes, SA 5095, Australia.
| | - David G Lancaster
- University of South Australia, STEM, Future Industries Institute, Mawson Lakes, SA 5095, Australia.
| | - Kate Badek
- School of Science, The University of New South Wales, Canberra, ACT 2600, Australia
| | - Hans Riesen
- School of Science, The University of New South Wales, Canberra, ACT 2600, Australia
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8
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Ma X, Zhou M, Jia L, Ling G, Li J, Huang W, Wu D. High-contrast reversible multiple color-tunable solid luminescent ionic polymers for dynamic multilevel anti-counterfeiting. MATERIALS HORIZONS 2023; 10:107-121. [PMID: 36306818 DOI: 10.1039/d2mh00986b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dynamic color-tunable luminescent materials, which possess huge potential applications in advanced multilevel luminescence anti-counterfeiting, are of considerable interest. However, it remains challenging to develop simple high-contrast reversible multiple (triple or more than triple) color-tunable high-efficiency solid luminescent materials with low cost, facile synthesis, and good processability. Herein, by simply grafting charged multi-color AIEgen-based chromophores into polymers, a series of high-efficiency multiple color-tunable luminescent single ionic polymers are constructed through tuning feed ratios, counter anions and reaction solvents. Remarkably, some ionic polymers can not only achieve rare high-contrast reversible multiple color-tunable emission in solid states in response to different solvent stimuli, but also could realize excitation-dependent color-tunable emission. To the best of our knowledge, such charming multiple (triple or more than triple) color-tunable solid polymers responding to multiple external stimuli are still rare. Based on comparative studies of emission spectra, excitation spectra and fluorescence lifetimes before and after swelling, it could be inferred that solvent stimuli could induce microstructure changes of these ionic polymers and then change the aggregated-states of their corresponding AIE-active emission centers. Moreover, the different solvent stimuli could induce to produce different degrees of microstructure changes, resulting in their unique multiple color-tunable emission. More significantly, these smart color-tunable ionic polymers show great promise for applications in dynamic multilevel (three-level or even more than three-level) anti-counterfeiting.
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Affiliation(s)
- Xiao Ma
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Mingyue Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Ling Jia
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Guangkun Ling
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Jiashu Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Wei Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
| | - Dayu Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.
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9
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Fan Y, Su H, Li P, Lin M, Liu D, Pei K, Cao X. Upcycling waste expanded polystyrene into UV-excited dual-mode multicolor luminescent electrospun fiber membranes for advanced anti-counterfeiting †. RSC Adv 2023; 13:10123-10134. [PMID: 37006355 PMCID: PMC10061269 DOI: 10.1039/d3ra00509g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023] Open
Abstract
Expanded polystyrene (EPS) is causing severe environmental problems due to its high consumption and non-biodegradability. Upcycling waste EPS into high value-added functional materials is highly advisable in terms of sustainability and environmental concerns. Meanwhile, it is imperative to develop new anti-counterfeiting materials with high security against increasingly high-tech counterfeiting. Developing UV-excited dual-mode luminescent advanced anti-counterfeiting materials that can be excited by commonly used commercial UV light sources (such as 254 nm and 365 nm wavelengths) remains a challenge. Herein, UV-excited dual-mode multicolor luminescent electrospun fiber membranes were fabricated from waste EPS by co-doping with a Eu3+ complex and a Tb3+ complex via electrospinning. The SEM results prove that the lanthanide complexes are uniformly dispersed in the PS matrix. The luminescence analysis results suggest that all the as-prepared fiber membranes with the different mass ratios of the two complexes can exhibit the characteristic emission of Eu3+ ions and Tb3+ ions under UV light excitation. The corresponding fiber membrane samples can exhibit intense visible luminescence with different colors under UV lights. Moreover, each membrane sample can display different color luminescence irradiated with UV light at 254 nm and 365 nm, respectively, e.g. show excellent UV-excited dual-mode luminescent properties. This is owing to the different UV absorption properties of the two lanthanide complexes doped in the fiber membrane. Finally, the fiber membranes with different color luminescence from green light to red light were achieved by tuning the mass ratio of the two complexes in the PS matrix and changing UV irradiation wavelengths. The as-prepared fiber membranes with tunable multicolor luminescence are very promising for high-level anti-counterfeiting applications. This work is very meaningful not only to upcycle waste EPS to high value-added functional products but also to develop advanced anti-counterfeiting materials. A simple and effective method to upcycle waste EPS to UV-excited dual-mode multicolor luminescent membranes for advanced anti-counterfeiting was developed.![]()
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Affiliation(s)
- Yunjie Fan
- Department of Chemistry, Zhejiang Sci-Tech UniversityHangzhou 310018China
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
| | - Huanyou Su
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
| | - Pengfei Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
| | - Mingmin Lin
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
| | - Dan Liu
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
| | - Kemei Pei
- Department of Chemistry, Zhejiang Sci-Tech UniversityHangzhou 310018China
| | - Xuebo Cao
- College of Biological, Chemical Sciences and Engineering, Jiaxing UniversityJiaxing 314001China
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10
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Alidaei-Sharif H, Roghani-Mamaqani H, Babazadeh-Mamaqani M, Sahandi-Zangabad K, Salami-Kalajahi M. Photoluminescent Polymer Nanoparticles Based on Oxazolidine Derivatives for Authentication and Security Marking of Confidential Notes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13782-13792. [PMID: 36318093 DOI: 10.1021/acs.langmuir.2c01947] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Colloidal materials have widely been used to develop innovative anticounterfeiting nanoinks for information encryption. Latex nanoparticles based on methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) bearing hydroxyl functional groups were synthesized via semicontinuous miniemulsion polymerization. The size determination of the nanoparticles and microscopic results showed mostly spherical nanoparticles with a narrow size distribution and a mean size of about 80 nm. Two oxazolidine derivatives were physically doped at the surface of the nanoparticles to prepare photoluminescent polymer nanoparticles. Hydroxyl functional groups at the surface of the nanoparticles led to their hydrogen bonding interactions with the doped luminescent compounds. Optical analysis of the photoluminescent nanoparticles displayed different fluorescence emission and UV-vis absorbance intensities based on the amount of polar groups located at the surface of colloidal nanoparticles. Reducing the particle size to below 100 nm along with increasing the surface area can assist the decrease of the light reflectance and improvement of the latex nanoparticles' efficiency in the anticounterfeiting industry. This preparation methodology can efficiently provide remarkable photoreversible anticounterfeiting nanoinks used in different applications, such as print marking, security encoded tags, labeling, probing, and handwriting.
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Affiliation(s)
- Hossein Alidaei-Sharif
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51368, Iran
| | - Hossein Roghani-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51368, Iran
- Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51386, Iran
| | - Milad Babazadeh-Mamaqani
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51368, Iran
| | - Keyvan Sahandi-Zangabad
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51368, Iran
| | - Mehdi Salami-Kalajahi
- Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51368, Iran
- Institute of Polymeric Materials, Sahand University of Technology, P.O. Box 51335-1996, Tabriz 51386, Iran
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11
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Bhaumik SK, Banerjee S. Multicolor-Luminescence Including White Light by Photomodulation of Supramolecular Assemblies in Aqueous Media. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36936-36946. [PMID: 35919994 DOI: 10.1021/acsami.2c07836] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Photo-responsive supramolecular systems offer intriguing functional aspects which have led to their applications in diverse fields such as optoelectronics and biomedicine. However, the modulation of the luminescence output in a spatiotemporal fashion by photo-controlled transformation still remains a challenging task. Herein, we report the controlled regulation of the emission color of supramolecular assemblies of amphiphilic cyanostilbenes (CSs) in water through in situ photomodulation employing UV and sunlight. Due to their aggregation-induced emission (AIE) features, the CS chromophores in the supramolecular assemblies exhibited bright greenish-yellow emission. Photoirradiation predominantly led to the formation of a cyclized product exhibiting aggregation-caused quenching (ACQ) features and having efficient cyan-blue emission in water but severely quenched emission in the solid state. Hence, starting from a unicomponent scaffold, photomodulation provided tunable emission ranging from greenish-yellow to cyan-blue including white light in water. Furthermore, using the contrasting AIE and ACQ behavior of the components in the photoirradiated mixtures, we were able to design rewritable fluorescent inks and encryption in solid films indicating the practical utility of these systems.
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Affiliation(s)
- Shubhra Kanti Bhaumik
- The Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246 Nadia, India
| | - Supratim Banerjee
- The Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246 Nadia, India
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12
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Shi Y, Han J, Jin X, Miao W, Zhang Y, Duan P. Chiral Luminescent Liquid Crystal with Multi-State-Reversibility: Breakthrough in Advanced Anti-Counterfeiting Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201565. [PMID: 35491504 PMCID: PMC9284135 DOI: 10.1002/advs.202201565] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/04/2022] [Indexed: 05/22/2023]
Abstract
Creating a security material that carries distinct information in reflective color, fluorescence, and chiroptical property will enhance anti-counterfeiting levels to deter counterfeits ranging from currencies to pharmaceuticals, but is proven extremely challenging. In this work, an advanced anti-counterfeiting material, with three-state of each mode reversibly converted into multi-mode materials including reflective color, fluorescence, and circularly polarized luminescence signal, is constructed by loading photofluorochromic spiropyran (SP) and zinc ion (Zn2+ ) into the chiral liquid crystal. Under UV irradiation, the complexes of SP and Zn2+ will be transformed into merocyanine (MC) and MC-Zn2+ , while the energy transfer occurs from MC-Zn2+ to MC. Upon heating, MC is easy to recover to SP, while the MC-Zn2+ remains unchanged. The MC and MC-Zn2+ can be transformed into the SP and Zn2+ under visible light irradiation. The three states of each mode can reversibly convert. Furthermore, the reflective color or fluorescence of each state shows different intensities under left- and right-handed circular polarized filters, enabling easy distinguishing by naked eyes. The advanced anti-counterfeiting method with multi-state of each mode for multi-mode encryption information output will provide a new concept for designing and fabricating multi-mode anti-counterfeiting materials, improving the security level for practical application.
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Affiliation(s)
- Yonghong Shi
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)No. 11 ZhongGuanCun BeiYiTiaoBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jianlei Han
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)No. 11 ZhongGuanCun BeiYiTiaoBeijing100190P. R. China
| | - Xue Jin
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)No. 11 ZhongGuanCun BeiYiTiaoBeijing100190P. R. China
| | - Wangen Miao
- Chemistry and Chemical EngineeringInstitute of Physical ChemistryLingnan Normal UniversityZhanjiang524048P. R. China
| | - Yi Zhang
- Hefei BOE Display Technology Co. Ltd.No. 3166 Tonglingbei RoadHefei230011P. R. China
| | - Pengfei Duan
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)No. 11 ZhongGuanCun BeiYiTiaoBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100049P. R. China
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13
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Moglianetti M, Pedone D, Morerio P, Scarsi A, Donati P, Bustreo M, Del Bue A, Pompa PP. Nanocatalyst-Enabled Physically Unclonable Functions as Smart Anticounterfeiting Tags with AI-Aided Smartphone Authentication. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25898-25906. [PMID: 35612325 DOI: 10.1021/acsami.2c02995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Counterfeiting is a worldwide issue affecting many industrial sectors, ranging from specialized technologies to retail market, such as fashion brands, pharmaceutical products, and consumer electronics. Counterfeiting is not only a huge economic burden (>$ 1 trillion losses/year), but it also represents a serious risk to human health, for example, due to the exponential increase of fake drugs and food products invading the market. Considering such a global problem, numerous anticounterfeit technologies have been recently proposed, mostly based on tags. The most advanced category, based on encryption and cryptography, is represented by physically unclonable functions (PUFs). A PUF tag is based on a unique physical object generated through chemical methods with virtually endless possible combinations, providing remarkable encoding capability. However, most methods adopted nowadays are based on expensive and complex technologies, relying on instrumental readouts, which make them not effective in real-world applications. To achieve a simple yet cryptography-based anticounterfeit method, herein we exploit a combination of nanotechnology, chemistry, and artificial intelligence (AI). Notably, we developed platinum nanocatalyst-enabled visual tags, exhibiting the properties of PUFs (encoding capability >10300) along with fast (1 min) ON/OFF readout and full reversibility, enabling multiple onsite authentication cycles. The development of an accurate AI-aided algorithm powers the system, allowing for smartphone-based PUF authentications.
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Affiliation(s)
- Mauro Moglianetti
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
| | - Deborah Pedone
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
| | - Pietro Morerio
- Pattern Analysis and Computer Vision (PAVIS), Istituto Italiano di Tecnologia (IIT), Via Enrico Melen, 83, 16152 Genova, Italy
| | - Anna Scarsi
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso, 31, 16146 Genova, Italy
| | - Paolo Donati
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
| | - Matteo Bustreo
- Pattern Analysis and Computer Vision (PAVIS), Istituto Italiano di Tecnologia (IIT), Via Enrico Melen, 83, 16152 Genova, Italy
| | - Alessio Del Bue
- Pattern Analysis and Computer Vision (PAVIS), Istituto Italiano di Tecnologia (IIT), Via Enrico Melen, 83, 16152 Genova, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego, 30, 16163 Genova, Italy
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14
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Yuan J, Xu Z, Wolf MO. Sulfur-bridged chromophores for photofunctional materials: using sulfur oxidation state to tune electronic and structural properties. Chem Sci 2022; 13:5447-5464. [PMID: 35694344 PMCID: PMC9116371 DOI: 10.1039/d2sc01128j] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/09/2022] [Indexed: 01/22/2023] Open
Abstract
The use of a heteroatom, such as sulfur, as a linker or bridge, in π-conjugated materials has advantages over purely carbon-based ones due to the accessibility of higher oxidation states as a result of hypervalence. Materials containing a sulfide bridge (S) can be systemically oxidized into sulfoxides (SO) and sulfones (SO2), each of which can then influence how a material interacts with light, playing a large role in dictating the photophysical and sometimes photochemical properties. In this perspective, we summarize the progress that our group and others have made, showing how oxidation of a sulfur bridge in symmetric bichromophoric dimers and in diimine ligands can influence the excited state behavior in organic π-conjugated materials and metal complexes.
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Affiliation(s)
- Jennifer Yuan
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Zhen Xu
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Michael O Wolf
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
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15
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Msalmi R, Elleuch S, Hamdi B, Abd El-Fattah W, Ben Hamadi N, Naïli H. Organically tuned white-light emission from two zero-dimensional Cd-based hybrids. RSC Adv 2022; 12:10431-10442. [PMID: 35425012 PMCID: PMC8982363 DOI: 10.1039/d1ra08953f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/10/2022] [Indexed: 12/25/2022] Open
Abstract
In this work, we report two zero-dimensional Cd-based hybrid compounds, denoted CdACP and CdODA, where the Cd atoms adopt tetrahedral geometry. The optical analysis reveals that these materials are classified as wide-gap semi-conductors which makes them suitable for optoelectronic applications. The photoluminescence analysis proves the wavelength dependent white-light emission behavior of the investigated materials. The structural-optical property studies show that, thanks to the heavy halide effect, the CdACP exhibits both fluorescence and room temperature phosphorescence through harvesting triplet states. Meanwhile, in contrast to CdACP, the white light emission from CdODA is purely fluorescence in nature. In fact, within CdODA, both C-H⋯π and N-H⋯N interactions facilitate the intramolecular proton transfer (ESIPT) between the different cations which leads to ultra-fast fluorescence through excited state ESIPT. Under sub-gap excitations, the inorganic sub-lattice is responsible for the blue-green emission through the STE mechanism, while the organic cations contribute by an intense red emission.
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Affiliation(s)
- Rawia Msalmi
- Laboratory of Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences of Sfax, Sfax University Sfax Tunisia
| | - Slim Elleuch
- Laboratory of Applied Physics, Department of Physics, Faculty of Sciences of Sfax, Sfax University Sfax Tunisia
| | - Besma Hamdi
- Laboratory of Materials Science and Environment, Department of Chemistry, Faculty of Sciences of Sfax, Sfax University Sfax Tunisia
| | - Wesam Abd El-Fattah
- Chemistry Department, College of Science, IMSIU (Imam Mohammad Ibn Saud Islamic University) Riyadh 11623 kingdom of Saudi Arabia
- Department of Chemistry, Faculty of Science, Port-Said University Port-Said Egypt
| | - Naoufel Ben Hamadi
- Chemistry Department, College of Science, IMSIU (Imam Mohammad Ibn Saud Islamic University) Riyadh 11623 kingdom of Saudi Arabia
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir Avenue of Environment 5019 Monastir Tunisia
| | - Houcine Naïli
- Laboratory of Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences of Sfax, Sfax University Sfax Tunisia
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16
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Wang C, Yan Z, Gong C, Xie H, Qiao Z, Yuan Z, Chen YC. Multicolor Light Mixing in Optofluidic Concave Interfaces for Anticounterfeiting with Deep Learning Authentication. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10927-10935. [PMID: 35172572 DOI: 10.1021/acsami.1c22466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Anticounterfeiting technology has received tremendous interest for its significance in daily necessities, medical industry, and high-end products. Confidential tags based on photoluminescence are one of the most widely used approaches for their vivid visualization and high throughput. However, the complexity of confidential tags is generally limited to the accessibility of inks and their spatial location; generating an infinite combination of emission colors is therefore a challenging task. Here, we demonstrate a concept to create complex color light mixing in a confined space formed by microscale optofluidic concave interfaces. Infinite color combination and capacity were generated through chaotic behavior of light mixing and interaction in an ininkjet-printed skydome structure. Through the chaotic mixing of emission intensity, wavelength, and light propagation trajectories, the visionary patterns serve as a highly unclonable label. Finally, a deep learning-based machine vision system was built for the authentication process. The developed anticounterfeiting system may provide inspiration for utilizing space color mixing in optical security and communication applications.
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Affiliation(s)
- Chenlu Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhiyuan Yan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Chaoyang Gong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Hui Xie
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhen Qiao
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yu-Cheng Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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17
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Katumo N, Li K, Richards BS, Howard IA. Dual-color dynamic anti-counterfeiting labels with persistent emission after visible excitation allowing smartphone authentication. Sci Rep 2022; 12:2100. [PMID: 35136113 PMCID: PMC8826933 DOI: 10.1038/s41598-022-05885-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/17/2022] [Indexed: 11/09/2022] Open
Abstract
A significant impediment to the deployment of anti-counterfeiting technologies is the reliance on specialized hardware. Here, anti-counterfeiting labels are developed that are both excited and detected using a smartphone. The persistent luminescence pattern and color changes on the timescale of hundreds of milliseconds to seconds. The labels can be authenticated by comparing still images from the red and green channels of video acquired at known times after flashlight excitation against expected reference patterns. The labels are based on a green-emitting SrAl2O4: Eu2+,Dy3+ (SAED), and red-emitting CaS:Eu2+ phosphors whose lifetimes are varied: (i) for SAED from 0.5 to 11.7 s by annealing the commercial material in air; and (ii) CaS:Eu2+ from 0.1 to 0.6 s by varying the dopant concentration. Examples of anti-counterfeiting labels exhibiting changing emission patterns and colors on a seven-segment display, barcode, and emoji are demonstrated. These results demonstrate that phosphors with visible absorption and tunable persistent luminescence lifetimes on the order of hundreds of milliseconds to seconds are attractive for anti-counterfeiting applications as they allow authentication to be performed using only a smartphone. Further development should allow richer color shifts and enhancement of security by embedding further covert anti-counterfeiting features.
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Affiliation(s)
- Ngei Katumo
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Kai Li
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Bryce S Richards
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131, Karlsruhe, Germany
| | - Ian A Howard
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany. .,Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131, Karlsruhe, Germany.
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18
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Li D, Feng Z, Han Y, Chen C, Zhang Q, Tian Y. Time-Resolved Encryption via a Kinetics-Tunable Supramolecular Photochromic System. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104790. [PMID: 34990071 PMCID: PMC8867189 DOI: 10.1002/advs.202104790] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/03/2021] [Indexed: 05/29/2023]
Abstract
With the advancement of forgery and decryption methods, conventional static encryption technology is becoming more and more powerless, which strongly demands the development of multistate anticounterfeiting materials as well as advanced multidimensional encryption strategies and technologies. Here a new strategy to realize time-resolved encryption based on a self-assembled supramolecular ternary complex is presented, which exhibits tunable dynamic photochromic features caused by the reversible photodimerization/cleavage reactions of the guest chromophores inside the cavity of cucurbit[8]uril (CB[8]). This supramolecular system shows excellent photochromic properties, including extremely rapid response time, high conversion rate, and product-stereoselectivity, etc. More importantly, the kinetics of the photoreaction can be modulated by simply varying the host-guest ratios in aqueous or quasi-solid phase, providing the material with finely tunable time-dependent features, which cannot only be employed in data processing with more extended information, but also construct confidential materials by time-resolved multidimensional encryption and dynamic anticounterfeiting. The strategic design of kinetics-tunable supramolecular photochromic materials may provide valuable guidance for the development of more advanced materials for information security.
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Affiliation(s)
- Dong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
| | - Zefen Feng
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
| | - Yujie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
| | - Chen Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
| | - Qi‐Wei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai200241P. R. China
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19
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Xu Q, Qin Z, Bei Y, Feng S, Xu XD. A cationic amphiphilic tetraphenylethylene derivative with hydrochromic sensitive property: Applications in anti-counterfeiting ink and rewritable paper. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Zhang X, Zhou B, Chen X, Yu WW. Reversible Transformation between Cs 3Cu 2I 5 and CsCu 2I 3 Perovskite Derivatives and Its Anticounterfeiting Application. Inorg Chem 2021; 61:399-405. [PMID: 34928576 DOI: 10.1021/acs.inorgchem.1c03021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Lead halide perovskites have promising values in photoelectronic and photovoltaic applications, but the toxicity of lead is a hard barrier. Copper halide perovskite derivatives (CHPDs), as a lead-free substitution of lead halide perovskites, also exhibit excellent photoelectric properties. Here, we present a facile one-step route for the synthesis of blue-emissive Cs3Cu2I5 (emission at 440 nm) and yellow-emissive CsCu2I3 (emission at 552 nm) CHPDs in ethanol at room temperature. Triggered by ethanol or CsI, a reversible chemical transformation accompanied by emissive color change between Cs3Cu2I5 and CsCu2I3 CHPDs was achieved. The reversible transformation mechanism was discussed, and this transformation was employed for effective anticounterfeiting.
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Affiliation(s)
- Xiangtong Zhang
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-Efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475000, China
| | - Biao Zhou
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-Efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475000, China
| | - Xueping Chen
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Centre for High-Efficiency Display and Lighting Technology, School of Materials and Engineering, Collaborative Innovation Centre of Nano Functional Materials and Applications, Henan University, Kaifeng 475000, China
| | - William W Yu
- Department of Chemistry and Physics, Louisiana State University, Shreveport, Louisiana 71115, United States
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21
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Kumar V, Kumar P, Kaur P, Singh K. A bis-pyrene chalcone based fluorescent material for ratiometric sensing of hydrazine: An acid/base molecular switch and solid-state emitter. Anal Chim Acta 2021; 1178:338807. [PMID: 34482879 DOI: 10.1016/j.aca.2021.338807] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 11/27/2022]
Abstract
In this work, we have designed and synthesized a new fluorescent molecular probe, DPY comprising of pyrene-diacetylpyridine conjugate, which was found to be sensitive to hydrazine as well as protonation. DPY is characterised by a strong emission both in solution (λem = 530 nm) as well as in solid state (λem = 610 nm), attributed to intramolecular charge-transfer. The probe responds to hydrazine with a ratiometric fluorescence emission change from yellow to blue, due to chalcone cyclisation reaction of α, β-unsaturated carbonyl group resulting in the pyrazoline compound, DPY-Hy, imparting a strong greenish-blue emission in solution. Further, the strong fluorescence emission of DPY in powder and thin film was quenched upon exposure to TFA, and revived upon exposure to TEA. For developing on-site detection protocol, when DPY was drop-casted on nonfluorescent silica plate a vivid naked-eye colour change from orange-red to dark blue was realized. Interestingly, in the aggregated state, DPY exhibited a broad range emission from green to orange in a mixed solvent system of THF:H2O. A plausible explanation of the photophysical events is substantiated with theoretical calculations.
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Affiliation(s)
- Virendra Kumar
- Department of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar, 143005, India
| | - Pawan Kumar
- Department of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar, 143005, India
| | - Paramjit Kaur
- Department of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Kamaljit Singh
- Department of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar, 143005, India.
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22
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Bolle P, Benali T, Menet C, Puget M, Faulques E, Marrot J, Mialane P, Dolbecq A, Serier-Brault H, Oms O, Dessapt R. Tailoring the Solid-State Fluorescence of BODIPY by Supramolecular Assembly with Polyoxometalates. Inorg Chem 2021; 60:12602-12609. [PMID: 34337949 DOI: 10.1021/acs.inorgchem.1c01983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A cationic boron dipyrromethene (BODIPY) derivative (1+) has been successfully combined with two polyoxometalates (POMs), the Lindqvist-type [W6O19]2- and the β-[Mo8O26]4- units, into three new supramolecular fluorescent materials (1)2[W6O19]·2CH3CN, (1)2[W6O19], and (1)4[Mo8O26]·DMF·H2O. The resulting hybrid compounds have been fully characterized by a combination of single-crystal X-ray diffraction, IR and UV-vis spectroscopies, and photoluminescence analyses. This self-assembly approach prevents any π-π stacking interactions not only between the BODIPY units, responsible for aggregation-caused quenching (ACQ) effects, but also between the BODIPY and the POMs, avoiding intermolecular charge-transfer effects. Noticeably, the POM units do not only act as bulky spacers, but their negative charge density drives the molecular arrangement of the 1+ luminophore, strongly modifying its fluorescence in the solid state. As a consequence, the 1+ cations are organized into dimers in (1)2[W6O19]·2CH3CN and (1)2[W6O19], which are weakly emissive at room temperature, and in a more compact layered assembly in (1)4[Mo8O26]·DMF·H2O, which exhibits a red-shifted and intense emission upon similar photoexcitation.
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Affiliation(s)
- Patricia Bolle
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | - Tarik Benali
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000 Versailles, France
| | - Clotilde Menet
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | - Marin Puget
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | - Eric Faulques
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | - Jérôme Marrot
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000 Versailles, France
| | - Pierre Mialane
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000 Versailles, France
| | - Anne Dolbecq
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000 Versailles, France
| | - Hélène Serier-Brault
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | - Olivier Oms
- Université Paris-Saclay, UVSQ, CNRS, Institut Lavoisier de Versailles, 78000 Versailles, France
| | - Rémi Dessapt
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
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Multi-Angular Colorimetric Responses of Uni- and Omni-Directional Femtosecond Laser-Induced Periodic Surface Structures on Metals. NANOMATERIALS 2021; 11:nano11082010. [PMID: 34443841 PMCID: PMC8401486 DOI: 10.3390/nano11082010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 11/17/2022]
Abstract
We investigated the colorimetric behaviors of metal surfaces with unidirectional low-spatial-frequency laser-induced periodic surface structures (UD-LSFLs) and omnidirectional LSFLs (OD-LSFLs) fabricated using femtosecond laser pulse irradiation. With the CIE standard illuminant D65, incident at −45°, we show that UD-LSFLs on metals transform polished metals to gonio-apparent materials with a unique behavior of colorimetric responses, depending on both the detection and rotation angles, whereas OD-LSFLs have nearly uniform gonio-apparent colors at each detection angle, regardless of their rotation. These colorimetric behaviors can be observed not only at the angles of diffraction but also near the angle of reflection, and we find that the power redistribution due to Rayleigh anomalies also plays an important role in the colorimetric responses of UD- and OD-LSFLs, in addition to diffraction.
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24
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Lim SI, Koo J, Jang J, Oh M, Tran DT, Park S, Cao Y, Kim DY, Jeong KU. Development of Diketopyrrolopyrrole-Based Smart Inks by Substituting Ionic Pendants and Engineering Molecular Packing Structures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31206-31214. [PMID: 34162200 DOI: 10.1021/acsami.1c08425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A series of diketopyrrolopyrrole (DPP) luminogen amphiphiles were newly designed and synthesized by a single-step anionic exchange reaction for controlling the photoluminescence properties in both solution and solid states. Multicolor emission in response to thermal, mechanical, and chemical stimuli was successfully demonstrated by engineering well-defined supramolecular assemblies. Phase transformation from the metastable amorphous solid to the stable orthorhombic crystal of [DP-Im][Br] provided the reversibly patternable light emission. Self-organization into the smectic crystalline phase of [DP-Im][TFSI] allowed us to show the linearly polarized light emission. By simultaneously applying [DP-Im][Br] and [DP-Im][TFSI], we demonstrated the fabrication of smart sensors for packaging of food or vaccines that can detect thermal attacks.
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Affiliation(s)
- Seok-In Lim
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jahyeon Koo
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Junhwa Jang
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Mintaek Oh
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Duy Thanh Tran
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Sungjune Park
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Yan Cao
- Institute for Advanced Study, Shenzhen University, Guangdong 518060, China
| | - Dae-Yoon Kim
- Functional Composite Materials Research Center, Korea Institute of Science and Technology, Bongdong, Jeonbuk 55324, Republic of Korea
| | - Kwang-Un Jeong
- Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
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25
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Chen G, Weng Y, Wang W, Hong D, Zhou L, Zhou X, Wu C, Zhang Y, Yan Q, Yao J, Guo T. Spontaneous Formation of Random Wrinkles by Atomic Layer Infiltration for Anticounterfeiting. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27548-27556. [PMID: 34060813 DOI: 10.1021/acsami.1c04076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Continuous developments of innovative anticounterfeiting strategies are vital to restrain the fast-growing counterfeit markets. Physical unclonable function (PUF)-based taggants allow for a practical solution to provide irreproducible codes for strong authentication. Herein, an advanced anticounterfeiting strategy with multiple security levels was successfully developed using screen printing and atomic layer infiltration (ALI) techniques. Macroscale poly(dimethylsiloxane) (PDMS) patterns were fabricated for primary verification. Spontaneous formation of random wrinkles with size in the micrometer scale was achieved on the top surface of screen-printed PDMS patterns due to the anisotropic relief and redistribution of extra compressive stress after Al2O3 infiltration, which can be used for senior authentication by image identification using the artificial intelligence (AI) technique. Furthermore, the complexity and security level of a code, which are proportional to the minutia density, can be adjusted by the morphology of the wrinkles in terms of amplitude and wavelength via the degree of Al2O3 permeation depending on ALI conditions. These spontaneously formed random wrinkles were demonstrated for validation and decoding with AI, exhibiting the merits of being unclonable, nondestructive, universally adaptable, environmentally stable, and mass-producible, and sufficiently adaptable for an industry-suitable authentication strategy.
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Affiliation(s)
- Guixiong Chen
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Yalian Weng
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Wenwen Wang
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Deming Hong
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Linpeng Zhou
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Xiongtu Zhou
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Chaoxing Wu
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Yongai Zhang
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Qun Yan
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Jianmin Yao
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Tailiang Guo
- College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
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Smith JD, Reza MA, Smith NL, Gu J, Ibrar M, Crandall DJ, Skrabalak SE. Plasmonic Anticounterfeit Tags with High Encoding Capacity Rapidly Authenticated with Deep Machine Learning. ACS NANO 2021; 15:2901-2910. [PMID: 33559464 DOI: 10.1021/acsnano.0c08974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Counterfeit goods create significant economic losses and product failures in many industries. Here, we report a covert anticounterfeit platform where plasmonic nanoparticles (NPs) create physically unclonable functions (PUFs) with high encoding capacity. By allowing anisotropic Au NPs of different sizes to deposit randomly, a diversity of surfaces can be facilely tagged with NP deposits that serve as PUFs and are analyzed using optical microscopy. High encoding capacity is engineered into the tags by the sizes of the Au NPs, which provide a range of color responses, while their anisotropy provides sensitivity to light polarization. An estimated encoding capacity of 270n is achieved, which is one of the highest reported to date. Authentication of the tags with deep machine learning allows for high accuracy and rapid matching of a tag to a specific product. Moreover, the tags contain descriptive metadata that is leveraged to match a tag to a specific lot number (i.e., a collection of tags created in the same manner from the same formulation of anisotropic Au NPs). Overall, integration of designer plasmonic NPs with deep machine learning methods can create a rapidly authenticated anticounterfeit platform with high encoding capacity.
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Affiliation(s)
- Joshua D Smith
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Md Alimoor Reza
- Department of Computer Science, Indiana University, 700 N. Woodlawn Avenue, Bloomington, Indiana 47408, United States
| | - Nathanael L Smith
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Jianxin Gu
- Department of Computer Science, Indiana University, 700 N. Woodlawn Avenue, Bloomington, Indiana 47408, United States
| | - Maha Ibrar
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - David J Crandall
- Department of Computer Science, Indiana University, 700 N. Woodlawn Avenue, Bloomington, Indiana 47408, United States
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
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27
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Liu S, Liu X, Yuan J, Bao J. Multidimensional Information Encryption and Storage: When the Input Is Light. RESEARCH 2021; 2021:7897849. [PMID: 33623922 PMCID: PMC7877379 DOI: 10.34133/2021/7897849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/01/2020] [Indexed: 12/15/2022]
Abstract
The issue of information security is closely related to every aspect of daily life. For pursuing a higher level of security, much effort has been continuously invested in the development of information security technologies based on encryption and storage. Current approaches using single-dimension information can be easily cracked and imitated due to the lack of sufficient security. Multidimensional information encryption and storage are an effective way to increase the security level and can protect it from counterfeiting and illegal decryption. Since light has rich dimensions (wavelength, duration, phase, polarization, depth, and power) and synergy between different dimensions, light as the input is one of the promising candidates for improving the level of information security. In this review, based on six different dimensional features of the input light, we mainly summarize the implementation methods of multidimensional information encryption and storage including material preparation and response mechanisms. In addition, the challenges and future prospects of these information security systems are discussed.
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Affiliation(s)
- Senyang Liu
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaohu Liu
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
| | - Jinying Yuan
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jie Bao
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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28
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Sajed S, Kolahdouz M, Sadeghi MA, Razavi SF. High-Performance Estimation of Lead Ion Concentration Using Smartphone-Based Colorimetric Analysis and a Machine Learning Approach. ACS OMEGA 2020; 5:27675-27684. [PMID: 33134731 PMCID: PMC7594326 DOI: 10.1021/acsomega.0c04255] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/05/2020] [Indexed: 05/27/2023]
Abstract
Traditional methods for detection of lead ions in water samples are costly and time-consuming. In this work, an accurate smartphone-based colorimetric sensor was developed utilizing a novel machine learning algorithm. In the presence of Pb2+ ions in the solution of specifically functionalized gold nanoparticles, the color of solution turns from red to purple. Indeed, the color variation of the solution is proportional to Pb2+ concentration. The smartphone camera captures the corresponding color change, and the image is processed by an efficient artificial intelligence protocol. The nonlinear regression approach was used for concentration estimation, in which the parameters of the proposed model are obtained using a new feature extraction algorithm. In prediction of Pb2+ concentration, the average absolute error and root-mean-square error were 0.094 and 0.124, respectively. The influence of pH of the medium, temperature, oligonucleotide concentration, and reaction time on the performance of the proposed sensor was carefully investigated and understood to achieve the best sensor response. This novel sensor exhibited good linearity for the detection of Pb2+ in the concentration range of 0.5-2000 ppb with a detection limit of 0.5 ppb.
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