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Abdelrahman MS, Khattab TA. Recent advances in photoresponsive printing inks for security encoding applications. LUMINESCENCE 2024; 39:e4800. [PMID: 38923447 DOI: 10.1002/bio.4800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/02/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Counterfeiting of banknotes, important documents, and branded goods continues to be a major worldwide problem for governments, businesses, and consumers. This problem has serious financial, security, and health implications. Due to their stability for printing on various substrates, the photochromic anticounterfeiting inks have received important interest. There have been various photochromic agents, such as polymer nanoparticles, quantum and carbon dots, and organic and inorganic fluorophores and luminophores, which have been broadly used for antiforging applications. In comparison to organic agents, inorganic photochromic materials have better stability under reversible/long-term light illumination. Recently, the remarkable optical characteristics and chemical stability of photoluminescent and photochromic agents have led to their extensive usage anticounterfeiting products. There have been also several strategies to tackle the rising problem of counterfeiting. Both of solvent-based and water-based inks have been developed for security encoding purposes. Additionally, the printing methods, including screen printing, labeling, stamping, inkjet printing, and handwriting, that have been used to apply anticounterfeiting inks onto various surfaces are discussed. The limitations of photoluminescent and photochromic agents and the potential for their future preparation to combat counterfeiting were discussed. This review would benefit academic researchers and industrial developers who are interested in the area of security printing.
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Affiliation(s)
- Meram S Abdelrahman
- Dyeing, Printing and Auxiliaries Department, Textile Research and Technology Institute, National Research Centre, Cairo, Egypt
| | - Tawfik A Khattab
- Dyeing, Printing and Auxiliaries Department, Textile Research and Technology Institute, National Research Centre, Cairo, Egypt
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2
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Muthamma K, Acharya S, Sunil D, Shetty P, Abdul Salam AA, Kulkarni SD, Anand PJ. Fluorene-naphthalene Schiff base as a smart pigment in invisible ink with multiple security features for advanced anticounterfeiting and forensic applications. J Colloid Interface Sci 2024; 653:209-219. [PMID: 37713919 DOI: 10.1016/j.jcis.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/27/2023] [Accepted: 09/06/2023] [Indexed: 09/17/2023]
Abstract
Smart functional materials with captivating optical properties are of immense importance due to their versatile applicability in anticounterfeiting and forensic science. A fluorene-naphthalene Schiff base (FNH) that displays aggregation induced emission, mechanofluorochromism and excitation wavelength dependent fluorescence inherent to the pristine and ground samples is synthesized. Water/solvent-based invisible security inks for flexo/screen printing were formulated using FNH as a smart pigment to check the originality of documents/branded products etc. The prints with good photostability, adherence to substrate and rub resistance are invisible in daylight showcasing multiple non-destructive and destructive techniques to authenticate the document. The inked area on UV dull paper substrate exhibits a weak emission, which is observed by the forger under UVA light. However, the user can validate the authenticity of the document by rubbing the print with hard objects, especially using a metal coin or glass rod to perceive a human eye detectable intensification in the orange fluorescence under the same illumination source. The intensity of the orange fluorescence reverts to the original, which enables the reuse of the security document after originality check. Yet another nondestructive authentication method is to observe a cyan fluorescence from the print and orangish yellow fluorescence from the rubbed printed region when shined with a 270-400 nm light source, whereas a cyanish green fluorescence both from the unrubbed and rubbed regions of the print when illuminated with a visible light source ranging from 420 to 480 nm. An additional verification through a destructive technique is to perceive red and yellow fluorescence of the ink film upon contact with THF and NaOH/KOH, respectively and a penetrating red fluorescence from the rear side of the THF-exposed printed area of the paper. The multi-level security features that cannot be easily replicated by the forger but allows a simple and easy validation process by the user are unique to FNH, used as a single pigment in the inks. Further, the applicability of the ground FNH in forensic science is established to distinctly observe Level I to II details of latent fingerprints.
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Affiliation(s)
- Kashmitha Muthamma
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sudarshan Acharya
- Department of Atomic & Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Dhanya Sunil
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - Prakasha Shetty
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Abdul Ajees Abdul Salam
- Department of Atomic & Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Suresh D Kulkarni
- Department of Atomic & Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - P J Anand
- Manipal Technologies Limited, Manipal, Karnataka 576104, India
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3
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El-Newehy M, El-Hamshary H, Abdul Hameed MM. Dual-mode security authentication of SrAl 2 O 4 :Eu,Dy phosphor encapsulated in electrospun cellulose acetate nanofibrous films. LUMINESCENCE 2023; 38:1758-1767. [PMID: 37465842 DOI: 10.1002/bio.4562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/03/2023] [Accepted: 07/14/2023] [Indexed: 07/20/2023]
Abstract
Photochromic inks have been an attractive authentication strategy to improve the anti-counterfeiting efficiency of commercial products. However, recent reports have shown significant disadvantages with photochromic inks, including poor durability and high cost. In this context, we developed novel photochromic nanofibres for advanced anti-counterfeiting applications. Lanthanide-doped strontium aluminate (LdSA) nanoparticles (NPs) were prepared and immobilized into electrospun cellulose acetate nanofibres (CANF). Authentication materials immobilized with inorganic photochromic agents can warranty durability and photostability. Therefore, the ultraviolet-stimulated photochromism of LdSA-encapsulated cellulose acetate nanofibres (LdSA@CANF) demonstrated high reversibility and photostability. A broad range of cellulose acetate nanofibres with unique emission characteristics was developed when applying different ratios of LdSA NPs. LdSA@CANF appeared colourless under visible daylight, whereas a green emission was monitored under ultraviolet-light illumination. The shape and chemical content of the photochromic fibrous films were examined using various analytical techniques. The mechanical characteristics of LdSA@CANF-coated paper were investigated. The emission wavelength was detected at 514 nm to designate green colour, whereas the excitation wavelength was detected at 369 nm to indicate transparency. The prepared cellulose acetate nanofibrous film can be described as an efficient strategy for the anti-counterfeiting of commercialized items.
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Affiliation(s)
- Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Hany El-Hamshary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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4
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Muthamma K, Gouda BM, Sunil D, Kulkarni SD, P.J. A. Water-based fluorescent flexo-ink for security applications. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02765-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
AbstractUV-readable fluorescent ink formulations find versatile applications in various fields including information encryption, automated identification systems, security markers and optical devices. In this context, a new bithiophene-based chalcone (BTCF) that exhibits good solution phase and solid-state fluorescence was synthesized as a colourant for formulating an eco-friendly UV fluorescent ink. The molecule demonstrated good thermal stability and photophysical features including intramolecular charge transfer, confirmed through emission studies in THF–hexane mixtures with varying hexane content. The intense greenish yellow solid-state fluorescence emission displayed by BTCF was exploited by using it as a colourant in a water-based fluorescent ink formulation. Further, the ink was used to print a fast-drying solid patch on an UV dull paper substrate using flexography technique. The analysis of colorimetric, densitometric and rub resistance properties of the printed paper samples demonstrated good fluorescence, moderate photostability and good rub resistance, and hence could be used for security printing applications.
Graphical abstract
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5
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Snari RM, Pashameah RA, Alatawi NM, Mogharbel AT, Al-Ahmed ZA, Abumelha HM, El-Metwaly NM. Preparation of photoluminescent nanocomposite ink for detection and mapping of fingermarks. Microsc Res Tech 2022; 85:3871-3881. [PMID: 36239117 DOI: 10.1002/jemt.24244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/06/2022] [Accepted: 09/30/2022] [Indexed: 11/10/2022]
Abstract
Simple and efficient detection and mapping method based on a strong turn-on fluorescent pigment was developed for fingerprint analysis. We present a phosphor powder characterized by strong emission which is useful to achieve better fingerprint detection on multicolored or photoluminescent surfaces, such as currency notes characterized by optically changeable inks and highly fluorescent positions, because it offers better contrast and reduce the difficulty of background interference. Novel photochromic ink was prepared to establish a fingerprinted colorless film onto cellulose documents with green emission for anticounterfeiting applications as illustrated by photoluminescence spectra. Inorganic/organic nanoscale composite ink was prepared from rare-earth doped aluminate phosphor nanoparticles (PNPs; 27-49 nm) dispersed in a polyacrylic acid binding agent. PNPs were dispersed efficiently in polyacrylic acid to generate a colorless mark. The produced photochromic inks were spray-coated onto off-white paper sheets enclosing invisible fingermarks, and then exposed to thermofixation. Photochromic film was detected on paper surface presenting a transparent appearance under visible daylight and switchable to green under UV light. The CIE Lab parameters and photoluminescence spectra were studied under visible light and ultraviolet irradiation. The fingerprinted sheets showed fluorescence band at 517 nm upon excitation at 366 nm, showing a bathochromic shift and reversible photochromism without fatigue. The morphologies of pigment phosphor particles and fingerprinted sheets were inspected. The rheological properties of ink and mechanical behavior of the fingerprinted paper samples were explored. HIGHLIGHTS: Novel smart ink with alkaline-earth aluminate and polyacrylic acid was developed. Dual-mode fluorescent photochromism was presented for latent fingerprint analysis. Off-white fingerprinted films under daylight showed color change to green under UV. Fluorescence band monitored at 517 nm upon excitation at 366 nm. Fluorescent fingermark on paper sheets demonstrated good photostability.
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Affiliation(s)
- Razan M Snari
- Department of Chemistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Rami A Pashameah
- Department of Chemistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Nada M Alatawi
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Amal T Mogharbel
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Zehbah A Al-Ahmed
- Department of Chemistry, College of Sciences and Arts, Dhahran Aljounb, King Khalid University, Saudi Arabia
| | - Hana M Abumelha
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nashwa M El-Metwaly
- Department of Chemistry, Umm Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Mansoura University, Mansoura, Egypt
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6
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Barbituric acid derivative as fluorescent pigment in water-based flexographic ink for security applications. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02455-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Al-Nami SY, Al-Qahtani SD, Snari RM, Ibarhiam SF, Alfi AA, Aldawsari AM, El-Metwaly NM. Preparation of photoluminescent and anticorrosive epoxy paints immobilized with nanoscale graphene from sugarcane bagasse agricultural waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60173-60188. [PMID: 35419683 DOI: 10.1007/s11356-022-20111-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Sugarcane bagasse agricultural waste has been one of the most common solid pollutants worldwide. Thus, introducing a simple method to convert sugarcane bagasse into value-added materials has been highly significant. Herein, we develop a simple and green strategy to reprocess sugarcane bagasse as a starting material for the preparation of graphene oxide nanosheets toward the preparation of novel photoluminescent, hydrophobic, and anticorrosive epoxy nanocomposite coatings integrated with lanthanide-doped aluminate nanoparticles. Environmentally friendly graphene oxide (GO) nanostructures were provided by a single-step preparation procedure from sugarcane bagasse (SCB) agricultural waste using ferrocene-based oxidation under muffled conditions. The oxidized SCB nanostructures were applied as a drier, anticorrosion, and crosslinking agent for epoxy coatings. Different concentrations of pigment phosphor were applied onto the epoxy coating. The generated epoxy-graphene-aluminate (EGA) paints were then coated onto mild steel. The hydrophobic properties and hardness as well as resistance to scratch of the EGA paints were examined. The transparency and colorimetric screening of the EGA nanocomposite paints were determined by the absorption spectral analysis and CIE Lab parameters. The luminescent translucent paints demonstrated a bright green emission at 520 nm when excited at 372 nm. The anticorrosion properties of the painted steel submerged in NaCl(aq) were inspected by the electrochemical impedance spectral (EIS) method. The EGA paints with phosphor (11% w/w) exhibited the most distinct anti-corrosion properties and long-persistent luminescence. The produced paints displayed high durability and photostability.
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Affiliation(s)
- Samar Y Al-Nami
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Razan M Snari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Saham F Ibarhiam
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Afrah M Aldawsari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
- King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt.
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8
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Al-Qahtani S, Alkhamis K, Alfi AA, Alhasani M, El-Morsy MHE, Sedayo AA, El-Metwaly NM. Simple Preparation of Multifunctional Luminescent Textile for Smart Packaging. ACS OMEGA 2022; 7:19454-19464. [PMID: 35721986 PMCID: PMC9202256 DOI: 10.1021/acsomega.2c01161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 05/20/2022] [Indexed: 05/25/2023]
Abstract
Linen has been a significant material for textile packaging. Thus, the application of the simple spray-coating method to coat linen fibers with a flame-retardant, antimicrobial, hydrophobic, and anticounterfeiting luminescent nanocomposite is an innovative technique. In this new approach, the ecologically benign room-temperature vulcanizing (RTV) silicone rubber was employed to immobilize the environmentally friendly Exolit AP 422 (Ex) and lanthanide-doped strontium aluminum oxide (RESAO) nanoscale particles onto the linen fibrous surface. Both morphological properties and elemental compositions of RESAO and treated fabrics were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), wavelength-dispersive X-ray fluorescence (WD-XRF), Fourier transform infrared (FTIR) spectroscopy, and energy-dispersive X-ray spectroscopy (EDX). In the fire resistance test, the treated linen fabrics produced a char layer, giving them the property of self-extinguishing. Furthermore, the coated linen samples' fire-retardant efficacy remained intact after 35 washing cycles. As the concentration of RESAO increased, so did the treated linen superhydrophobicity. Upon excitation at 366 nm, an emission band of 519 nm was generated from a colorless luminescent film deposited onto the linen surface. The coated linen displayed a luminescent activity by changing color from off-white beneath daylight to green beneath UV source, which was proved by CIE Lab parameters and photoluminescence spectral analysis. The photoluminescence effect was identified in the treated linen as reported by emission, excitation, and decay time spectral analysis. The comfort properties of coated linen fabrics were measured to assess their mechanical and comfort features. The treated linen exhibited excellent UV shielding and improved antimicrobial performance. The current simple strategy could be useful for large-scale production of multifunctional smart textiles such as packaging textiles.
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Affiliation(s)
- Salhah
D. Al-Qahtani
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Kholood Alkhamis
- Department
of Chemistry, College of Science, University
of Tabuk, Tabuk 71474, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
| | - Mona Alhasani
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
| | - Mohamed H. E. El-Morsy
- Deanship
of Scientific Research, Umm Al-Qura University, Makkah 24382, Saudi Arabia
- Plant
Ecology and Range Management Department, Desert Research, Center, Cairo 11753, Egypt
| | - Anas Abdulhamid Sedayo
- Department
of Medical Physics, Maternity and Children Hospital Makkah, Ministry of Health, Riyadh 12613, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, Dakahlia Governorate 35516, Egypt
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Hameed A, Snari RM, Alaysuy O, Alluhaybi AA, Alhasani M, Abumelha HM, El-Metwaly NM. Development of photoluminescent artificial nacre-like nanocomposite from polyester resin and graphene oxide. Microsc Res Tech 2022; 85:3104-3114. [PMID: 35621710 DOI: 10.1002/jemt.24169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 11/07/2022]
Abstract
Long-lasting phosphorescent nacre-like material was simply prepared from a nanocomposite of inorganic and organic materials. Low molecular weight unsaturated polyester (PET), graphene oxide (GO), and nanoparticles of rare-earth activated aluminate pigment were used in the preparation process of an organic/inorganic hybrid nanocomposite. Using methylethylketone peroxide (MEKP) as a hardener, we were able to develop a fluid solution that hardens within minutes at room temperature. Covalent and hydrogen bonds were introduced between the polyester resin and graphene oxide nanosheets. The interface interactions of those bonds resulted in toughness, excellent tensile strength, and high durability. The produced nacre substrates demonstrated long-persistent and reversible luminescence. The excitation of the produced nacre substrates at 365 nm resulted in a 524 nm emission. After being exposed to UV light, the photoluminescent nacre substrates became green. The increased superhydrophobic activity of the produced nacre substrates was achieved without affecting their physico-mechanical properties.
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Affiliation(s)
- Ahmed Hameed
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Razan M Snari
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Omaymah Alaysuy
- Depertment of Chemistry, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Ahmad A Alluhaybi
- Department of Chemistry, Rabigh College of Science & Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Mona Alhasani
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hana M Abumelha
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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Alfi AA, Al-Qahtani SD, Alatawi NM, Attar RMS, Abu Al-Ola K, Habeebullah TM, El-Metwaly NM. Simple preparation of novel photochromic polyvinyl alcohol/carboxymethyl cellulose security barcode incorporated with lanthanide-doped aluminate for anticounterfeiting applications. LUMINESCENCE 2022; 37:1152-1161. [PMID: 35484850 DOI: 10.1002/bio.4269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/21/2022] [Accepted: 04/27/2022] [Indexed: 11/07/2022]
Abstract
Forgery and low-quality products pose a danger to the society. Therefore, there are increasing demands for the production of easy to recognize and difficult to copy anti-counterfeiting materials. Products with smart photochromic and fluorescent properties can change color and emission spectra responding to a light source. In this context, we devised a straightforward preparation of luminescent polyvinyl alcohol/carboxymethyl cellulose (PVA/CMC) nanocomposite to function as a transparent labeling film. The lanthanide-doped aluminate (LdA) was prepared in the nanoparticle form to indicate diameters of 35-115 nm. Different ratios of the lanthanide-doped aluminate (LdA) were physically dispersed in the PVA/CMC nanocomposite label film to provide photochromic, ultraviolet protection, antimicrobial activity and hydrophobic properties. Fluorescence peaks were detected at 365 and 519 nm to indicate a color change to green. As a result of increasing the phosphor ratio, improved superhydrophobic activity was achieved as the contact angle increased from 126.1° to 146.0° without affecting the film original physical and mechanical properties. Both UV protection and antibacterial activity were also investigated. The films showed quick and reversible photochromic response without fatigue. The current strategy reported the development of photochromic smart label that is transparent, cost-effective and flexible. As a result, numerous anticounterfeiting products can benefit from the current label for a better market. LdA-loaded PVA/CMC films demonstrated antibacterial activity between poor, good, very good and outstanding as the percentage of LdA in the film matrix increased. The current film can be applied as a transparent photochromic security barcode for anticounterfeiting applications and smart packaging.
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Affiliation(s)
- Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, Saudi Arabia
| | - Nada M Alatawi
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Roba M S Attar
- Department of Microbiology, Faculty of Science, University of Jeddah, P.O. Box 2360S, Saudi Arabia
| | - Khulood Abu Al-Ola
- Department of Chemistry, College of Science, Taibah University, Saudi Arabia
| | - Turki M Habeebullah
- Department of Environment and Health Research, Custodian of two holy mosques Institute for Hajj and Umrah Research, Umm Al Qura University, Makkah
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Egypt
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Al‐Qahtani SD, Snari RM, Alkhamis K, Alhasani M, Ibarhiam SF, Habeebullah TM, El‐Metwaly NM. Authentication of documents using polypropylene immobilized with rare‐earth doped aluminate nanoparticles. Microsc Res Tech 2022; 85:2607-2617. [DOI: 10.1002/jemt.24116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/05/2022] [Accepted: 03/10/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Salhah D. Al‐Qahtani
- Department of Chemistry, College of Science Princess Nourah Bint Abdulrahman University Riyadh Saudi Arabia
| | - Razan M. Snari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Kholood Alkhamis
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Mona Alhasani
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Saham F. Ibarhiam
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Turki M. Habeebullah
- Department of Environment and Health Research Custodian of Two Holy Mosques Institute for Hajj and Umrah Research, Umm Al Qura University Makkah Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
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13
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Al-Qahtani S, Alshareef M, Aljohani M, Alhasani M, Felaly R, Habeebullah TM, El-Metwaly NM. Simple Preparation of Photoluminescent and Color-Tunable Polyester Resin Blended with Alkaline-Earth-Activated Aluminate Nanoparticles. ACS OMEGA 2022; 7:10599-10607. [PMID: 35382282 PMCID: PMC8973151 DOI: 10.1021/acsomega.2c00149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/11/2022] [Indexed: 05/04/2023]
Abstract
A simple inorganic/organic nanocomposite was used to generate long-lasting phosphorescent pebbles for easy commercial manufacturing of smart products. An organic/inorganic nanocomposite was made from low-molecular-weight unsaturated polyester and rare-earth-activated strontium aluminum oxide nanoparticles doped with europium and dysprosium. The polyester resin was mixed with phosphorescent strontium aluminate oxide nanoparticles and methylethyl ketone peroxide as a cross-linking agent to create a viscous mixture that can be hardened in a few minutes at room temperature. Before adding the hardener catalyst, the phosphorescent strontium aluminate nanoparticles were dispersed throughout the polyester resin in a homogeneous manner to ensure that the pigment did not accumulate. Long-lasting, reversible luminescence was shown by the photoluminescent substrates. The emission was reported at 515 nm upon exciting the pebble at 365 nm. In normal visible light, both blank and luminescent pebbles had a translucent appearance. As a result of UV irradiation, the photoluminescent pebbles produced an intense green color. The three-dimensional CIE Lab (International Commission on Illumination) color coordinates and luminescence spectra were used to investigate the color changing characteristics. Photophysical characteristics, including excitation, emission, and lifetime, were also investigated. Scanning electron microscopy, wavelength-dispersive X-ray fluorescence spectroscopy, and energy-dispersive X-ray analysis were employed to report the surface morphologies and elemental content. Without impairing the pebbles' original physico-mechanical characteristics, the pebbles showed improved superhydrophobic activity. The current simple colorless long-lasting phosphorescent nanocomposite can be applied to a variety of surfaces, like ceramics, glassware, tiles, and metals.
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Affiliation(s)
- Salhah
D. Al-Qahtani
- Department
of Chemistry, College of Science, Princess
Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mubark Alshareef
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 21955, Saudi Arabia
| | - Meshari Aljohani
- Department
of Chemistry, College of Science, University
of Tabuk, Tabuk 71491, Saudi Arabia
| | - Mona Alhasani
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 21955, Saudi Arabia
| | - Rasha Felaly
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 21955, Saudi Arabia
| | - Turki M. Habeebullah
- Department
of Environment and Health Research, Custodian of Two Holy Mosques
Institute for Hajj and Umrah Research, Umm
Al Qura University, Makkah 21955, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 21955, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, Dakahlia 35516, Egypt
- ,
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14
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Abualnaja MM, Hossan A, Bayazeed A, Al-Qahtani SD, Al-Ahmed ZA, Abdel-Hafez SH, El-Metwaly NM. Synthesis and self-assembly of new fluorescent cholesteryloxy-substituted fluorinated terphenyls with gel formation and mesogenic phases. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Abou-Melha K. Preparation of photoluminescent nanocomposite ink toward dual-mode secure anti-counterfeiting stamps. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103604] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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16
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Alhasani M, Al‐Qahtani SD, Hameed A, Snari RM, Shah R, Alfi AA, El‐Metwaly NM. Preparation of transparent photoluminescence smart window by integration of rare‐earth aluminate nanoparticles into recycled polyethylene waste. LUMINESCENCE 2022; 37:622-632. [DOI: 10.1002/bio.4202] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Mona Alhasani
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Salhah D. Al‐Qahtani
- Department of Chemistry College of Science, Princess Nourah bint Abdulrahman University Riyadh Saudi Arabia
| | - Ahmed Hameed
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Razan M. Snari
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Reem Shah
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University El‐Gomhoria Street Egypt
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17
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Al-Qahtani SD, Snari RM, Alkhamis K, Alatawi NM, Alhasani M, Al-Nami SY, El-Metwaly NM. Development of silica-coated rare-earth doped strontium aluminate toward superhydrophobic, anti-corrosive and long-persistent photoluminescent epoxy coating. LUMINESCENCE 2022; 37:479-489. [PMID: 35043557 DOI: 10.1002/bio.4198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 11/05/2022]
Abstract
Long-persistent phosphorescent smart paints have the ability to continue glowing in the dark for a prolonged time period to function as energy-saving products. Herein, new epoxy/silica nanocomposite paints were prepared with different concentrations of lanthanide-doped aluminate nanoparticles (LAN; SrAl2 O4 : Eu2+ , Dy3+ ). The LAN pigment was firstly coated with SiO2 utilizing the heterogeneous precipitation technique to provide LAN-encapsulated between SiO2 nanoparticles (LAN@SiO2 ). The epoxy/silica/lanthanide-doped aluminate nanoparticles (ESLAN) nanocomposite paints were coated on steel. The prepared ESLAN paints were studied by transmission electron microscope (TEM), infrared spectra (FTIR), scanning electron microscope (SEM), X-ray fluorescence analysis (XRF), and energy-dispersive X-ray spectra (EDS). The transparency and coloration properties of the nanocomposite coated films were explored by CIE Lab parameters and photoluminescence spectra. The ultraviolet-induced luminescence properties of the transparent coated films demonstrated greenish phosphorescence at 518 nm upon excitation at 368 nm. Both hardness and hydrophobic activities were investigated. The anticorrosion activity of the nanocomposite films coated onto mild steel substrates immersed in NaCl(aq) (3.5%) was studied by the electrochemical impedance spectral (EIS) analysis. The silica-containing coatings were monitored to exhibit anticorrosion properties. Additionally, the nanocomposite films with LAN@SiO2 (25%) exhibited the optimized long-lasting luminescence properties in the dark for 90 minutes. The nanocomposite films showed highly reversible and durable long-lived phosphorescence.
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Affiliation(s)
- Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Razan M Snari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Kholood Alkhamis
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Nada M Alatawi
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Mona Alhasani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Samar Y Al-Nami
- Department of Chemistry, Faculty of Science, King Khalid University, Saudi Arabia, Abha
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Egypt
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18
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Guo MY, Wang W, Ainiwaer D, Yang YS, Wang BZ, Yang J, Zhu HL. A fluorescent Rhodol-derived probe for rapid and selective detection of hydrogen sulfide and its application. Talanta 2022; 237:122960. [PMID: 34736685 DOI: 10.1016/j.talanta.2021.122960] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/29/2021] [Accepted: 10/08/2021] [Indexed: 11/25/2022]
Abstract
H2S has been reported to play essential roles in a variety of physiological and pathological procedures. In this work, a novel fluorescent probe, Rho-HS, for detecting H2S was developed by introducing the ortho-halogen to activate the least reactive recognition group 2,4-dinitrophenyl moiety. In combination of the structures from both Rhodamine B and fluorescein, Rho-HS could generate both the colorimetric and fluorescent responses. This feature was not frequently achieved and could lead to the quantitative and convenient for the end-user. In comparison with recent probes for H2S, the major advantages of Rho-HS included suiting wide pH range (6.0-10.0), relatively rapid response (within 15 min) and the high selectivity among the competing species including the biothiols. With low cytoxicity, Rho-HS was further applied in the biological imaging in living MCF-7 cells and Caenorhabditis elegans. We hope that the designing strategy in this work might provide useful information for more preferable implements in this field.
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Affiliation(s)
- Meng-Ya Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Wei Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Dilimulati Ainiwaer
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Yu-Shun Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Bao-Zhong Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
| | - Jie Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, 210023, China.
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19
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Ibarhiam SF, Alshareef HF, Alqarni SA, Shah R, Al-Qahtani SD, Almehmadi SJ, El-Metwaly NM. Novel nanocomposite film developed via screen-printing of viologen polymer for anti-counterfeiting applications: Photochromism, thermochromism and vapochromic. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105186] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Alqarni SA, Al-Qahtani SD, Alluhaybi AA, Alnoman RB, Alsoliemy A, Abdel-Hafez SH, El-Metwaly NM. Development of a Fluorescent Nanofibrous Template by In Situ S NAr Polymerization of Fluorine-Containing Terphenyls with Aliphatic Diols: Self-Assembly and Optical and Liquid Crystal Properties. ACS OMEGA 2021; 6:35030-35038. [PMID: 34963984 PMCID: PMC8697602 DOI: 10.1021/acsomega.1c05690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
Stimulus-responsive supramolecular organogels have been broadly studied, but the assembly of a liquid crystalline organogel with a thermoreversible response remains a challenge. This could be attributed to the difficulty of designing organogelators with liquid crystalline properties. Nucleophilic aromatic substitution (SNAr) has been utilized to produce a diversity of pentafluorobenzene-containing aromatics, which are very regioselective to para positions. Those pentafluorobenzene-functionalized aromatics have been ideal compounds for the preparation of calamitic liquid crystals. In this context, novel fluoroterphenyl-containing main-chain polyether (FTP@PE) was synthesized using in situ SNAr polymerization as a convenient and effective synthetic strategy toward the development of fluorescent liquid crystals bearing fluoroterphenyl and ether groups. The fluoroterphenyl unit was synthesized by Cu(I)-supported decarboxylation cross-coupling of potassium pentafluorobenzoate and 1,4-diiodobenzene. The chemical structures of FTP@PE were studied with 1H/13C/19F nuclear magnetic resonance and infrared spectra. The liquid crystal mesophases were determined with differential scanning calorimetry and polarizing optical microscopy. Ultraviolet-visible absorbance and emission spectral profiles showed solvatochromic activity. The nanofibrous morphologies were studied with a scanning electron microscope. The organogels of FTP@PE were developed in a number of solvents via van der Waals attraction forces of aliphatic moieties and π stacking of fluoroterphenyl groups. They demonstrated thermoreversible responsiveness.
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Affiliation(s)
- Sara A. Alqarni
- Department
of Chemistry, College of Science, University
of Jeddah, Jeddah 22441, Saudi Arabia
| | - Salhah D. Al-Qahtani
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Ahmad A. Alluhaybi
- Department
of Chemistry, Rabigh College of Science and Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia
| | - Rua B. Alnoman
- Department
of Chemistry, College of Science, Taibah
University, P.O. Box 344, Madinah 344, Saudi Arabia
| | - Amerah Alsoliemy
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Shams H. Abdel-Hafez
- Department
of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, Mansoura 35516, Egypt
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21
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R.S. B, Sunil D, Shetty P, Kagatikar S, Wagle S, Melroy Lewis P, Kulkarni SD, Kekuda D. Water-based flexographic ink using chalcones exhibiting aggregation-induced enhanced emission for anti-counterfeit applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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El-Newehy MH, Kim HY, Khattab TA, El-Naggar ME. Production of photoluminescent transparent poly(methyl methacrylate) for smart windows. LUMINESCENCE 2021; 37:97-107. [PMID: 34713553 DOI: 10.1002/bio.4150] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/07/2021] [Accepted: 10/15/2021] [Indexed: 02/03/2023]
Abstract
Photochromic and long-lasting photoluminescent transparent, rigid, ultraviolet (UV) protective and superhydrophobic poly(methyl methacrylate) (PMMA) plastic able to switch colour beneath UV irradiation was developed. Photoluminescent transparent PMMA plastic was prepared by the simple polymerization process of methyl methacrylate immobilized with alkaline earth aluminate (AEA) nanoparticles. These colourless PMMA plastic substrates showed a colour switch to greenish underneath UV light as proved using CIELAB screening. The morphology of AEA was evaluated using transmission electron microscopy. Conversely, transparent PMMA samples were evaluated using energy-dispersive X-ray spectra, scanning electron microscope, X-ray fluorescence spectroscopy and for hardness properties. Additionally, the photoluminescence properties were explored by studying excitation and emission spectra. The produced luminescence colourless PMMA plastic substrates displayed excitation band at 370 nm, and three emission peaks at 433, 494 and 513 nm. Photoluminescent PMMA with lower contents of AEA showed fast and reversible photochromism under UV light, while PMMA samples with higher contents of AEA showed long-lasting luminescence such as a flashlight with the ability to replace electric power. The findings showed that the produced photoluminescence colourless PMMA plastic substrates exhibited enhanced UV shielding and superhydrophobicity.
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Affiliation(s)
- Mohamed H El-Newehy
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Hak Yong Kim
- Nano Convergence Engineering, Jeonbuk National University, Jeonju, Republic of Korea
| | - Tawfik A Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Cairo, Egypt
| | - Mehrez E El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Cairo, Egypt
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23
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Abumelha HM, Hameed A, Alkhamis KM, Alkabli J, Aljuhani E, Shah R, El-Metwaly NM. Development of Mechanically Reliable and Transparent Photochromic Film Using Solution Blowing Spinning Technology for Anti-Counterfeiting Applications. ACS OMEGA 2021; 6:27315-27324. [PMID: 34693152 PMCID: PMC8529685 DOI: 10.1021/acsomega.1c04127] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/13/2021] [Indexed: 05/07/2023]
Abstract
Photochromic materials have attracted broad interest to enhance the anti-counterfeiting of commercial products. In order to develop anti-counterfeiting mechanically reliable composite materials, it is urgent to improve the engineering process of both the material and matrix. Herein, we report on the development of anti-counterfeiting mechanically reliable nanocomposites composed of rare-earth doped aluminate strontium oxide phosphor (RESA) nanoparticles (NPs) immobilized into the thermoplastic polyurethane-based nanofibrous film successfully fabricated via the simple solution blowing spinning technology. The generated photochromic film exhibits an ultraviolet-stimulated anti-counterfeiting property. Different films of different emissive properties were generated using different total contents of RESA. Transmission electron microscopy was utilized to investigate the morphological properties of RESA NPs to display a particle diameter of 3-17 nm. The morphologies, compositions, optical transmittance, and mechanical performance of the produced photochromic nanofibrous films were investigated. Several analytical methods were employed, including energy-dispersive X-ray spectroscopy, scanning electron microscopy, and Fourier-transform infrared spectrometry. The fibrous diameter of RESA-TPU was in the range of 200-250 nm. In order to ensure the development of transparent RESA-TPU film, RESA must be prepared in the nanosized form to allow better dispersion without agglomeration in the TPU matrix. The luminescent RESA-TPU film displayed an absorbance intensity at 367 nm and two emission intensities at 431 and 517 nm. The generated RESA-TPU films showed an enhanced hydrophobicity without negatively influencing their original appearance and mechanical properties. Upon irradiation with ultraviolet light, the transparent nanofibrous films displayed rapid and reversible photochromism to greenish-yellow without fatigue. The produced anti-counterfeiting films demonstrated stretchable, flexible, and translucent properties. As a simple sort of anti-counterfeiting substrates, the current novel photochromic film provides excellent anti-counterfeiting strength at low-cost as an efficient method to develop versatile materials with high mechanical strength to create an excellent market as well as adding economic and social values.
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Affiliation(s)
- Hana M. Abumelha
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, 11671 Riyadh, Saudi Arabia
| | - Ahmed Hameed
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, 00966 Makkah, Saudi Arabia
| | - Kholood M. Alkhamis
- Department
of Chemistry, College of Science, University
of Tabuk, Tabuk 47711, Saudi Arabia
| | - Jafar. Alkabli
- Department
of Chemistry, College of Science and Arts-Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia
| | - Enas Aljuhani
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, 00966 Makkah, Saudi Arabia
| | - Reem Shah
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, 00966 Makkah, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, 00966 Makkah, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, 35516 Mansoura, Egypt
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24
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El-Newehy MH, Kim HY, Khattab TA, Moydeen A M, El-Naggar ME. Synthesis of lanthanide-doped strontium aluminate nanoparticles encapsulated in polyacrylonitrile nanofibres: photoluminescence properties for anticounterfeiting applications. LUMINESCENCE 2021; 37:40-50. [PMID: 34551199 DOI: 10.1002/bio.4144] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 11/08/2022]
Abstract
Photochromism has been applied as an interesting technique in order to improve the anticounterfeiting of commercial commodities. To build up a mechanically reliable anticounterfeiting nanocomposite, it has been vital to enhance the engineering process of the anticounterfeiting material. In the current study, we developed mechanically reliable and highly photoluminescent lanthanide-doped strontium aluminate nanoparticles (LSAN)/polyacrylonitrile (PAN) hybrid nanofibres successfully fabricated using an electrospinning technique for anticounterfeiting applications. The produced nanocomposite films exhibited ultraviolet-induced photochromic anticounterfeiting properties. To guarantee the transparency of the LSAN-PAN film, LSAN must be immobilized onto the nanoparticle size to allow better dispersion without aggregation in the polyacrylonitrile matrix. The LSAN-PAN nanofibrous film demonstrated absorbance intensity that exhibited at 354 nm and associated with an emission intensity at 424 nm. The produced LSAN-PAN films demonstrated an enhanced hydrophobicity when increasing the ratio of LSAN, without adversely influencing their native appearance and mechanical performance. Upon excitation with ultraviolet light, the translucent nanofibrous substrates exhibited fast and reversible photochromic activity to greenish-yellow without exhaustion. The nanofibrous films exhibited stretchability, transparency, flexibility, and ultraviolet light-induced photochromism at low cost. The current strategy can be considered as an efficient technique towards the development of various anticounterfeiting materials for a better market with economic and social values.
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Affiliation(s)
- Mohamed H El-Newehy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
| | - Hak Yong Kim
- Nano Convergence Engineering, Jeonbuk National University, Jeonju, Republic of Korea
| | - Tawfik A Khattab
- Textile Research Division, National Research Center, (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Meera Moydeen A
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
| | - Mehrez E El-Naggar
- Textile Research Division, National Research Center, (Affiliation ID: 60014618), Dokki, Cairo, Egypt
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25
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El-Naggar ME, Aldalbahi A, Khattab TA, Hossain M. Facile production of smart superhydrophobic nanocomposite for wood coating towards long-lasting glow-in-the-dark photoluminescence. LUMINESCENCE 2021; 36:2004-2013. [PMID: 34453772 DOI: 10.1002/bio.4137] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 01/23/2023]
Abstract
A smart photoluminescent nanocomposite surface coating was prepared for simple industrial production of long-persisting phosphorescence and superhydrophobic wood. The photoluminescent nanocomposite coatings were capable of continuing to emit light in the dark for prolonged time periods that could reach 1.5 h. Lanthanide-doped aluminium strontium oxide (LASO) nanoparticles at different ratios were immobilized in polystyrene (PS) and developed as a nanocomposite coating for wood substrates. To produce transparency in the prepared nanocomposite coating, LASO was efficiently dispersed in the form of nanoscaled particles to ensure homogeneous dispersion without agglomeration in the PS matrix. The coated wood showed an absorption band at 374 nm and two emission bands at 434 nm and 518 nm. The luminescence spectra showed both long-persisting phosphorescence as well as photochromic fluorescence relying on the LASO ratio. The improved superhydrophobicity and resistance to scratching of the coated wood could be attributed to the LASO NPs incorporated in the polystyrene matrix. Compared with the uncoated wood substrate, the coated LASO-PS nanocomposite film also displayed photostability and high durability. The current study demonstrated the potential high-scale manufacturing of smart wood for some applications such as safety directional signs in buildings, household products, and smart windows.
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Affiliation(s)
- Mehrez E El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Tawfik A Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering, College of Engineering, Swansea University, UK
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26
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Aldalbahi A, El-Naggar ME, Khattab TA, Hossain M. Preparation of flame-retardant, hydrophobic, ultraviolet protective, and luminescent transparent wood. LUMINESCENCE 2021; 36:1922-1932. [PMID: 34323352 DOI: 10.1002/bio.4126] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 01/08/2023]
Abstract
Transparent wood with multifunctional properties has recently attracted more attention as an efficient building product. Here, we describe the development of transparent wood with long-persistent phosphorescence, tough surface, high durability, photostability, and reversibility without fatigue, and with ultraviolet shielding, superhydrophobicity, and flame-retardant activity. This long-persistent phosphorescent, or glow-in-the-dark, smart wood exhibited an ability to continue emitting light for prolonged periods of time. The photoluminescent translucent wooden substrate was prepared by immobilizing lignin-modulated wooden bulk with an admixture of methylmethacrylate (MMA), ammonium polyphosphate (APP), and lanthanide-doped strontium aluminate (LSA; SrAl2 O4 :Eu2+ ,Dy3+ ) phosphor nanoparticles. The photoluminescent transparent wood displayed a colour switch from colourless to bright white beneath ultraviolet (UV) light and greenish-yellow in the dark as reported by Commission Internationale de l'Éclairage laboratory colorimetric space coordinates. The generated phosphorescent wooden substrates demonstrated an absorbance band at 365 nm and an emission band at 516 nm. The phosphorescent transparent wood was improved flame-retardant properties, ultraviolet shielding, and superhydrophobic properties, as well as a reversible long-persistent phosphorescent responsiveness to UV light without fatigue. The current approach demonstrated a potential large-scale production strategy for multifunctional transparent wooden substrates for a range of applications such as smart windows, gentle indoor and outdoor lighting, and safety directional signs in buildings.
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Affiliation(s)
- Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mehrez E El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Tawfik A Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering, College of Engineering, Swansea University, UK
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27
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Mokhtar OM, Attia YA, Wassel AR, Khattab TA. Production of photochromic nanocomposite film via spray-coating of rare-earth strontium aluminate for anti-counterfeit applications. LUMINESCENCE 2021; 36:1933-1944. [PMID: 34323370 DOI: 10.1002/bio.4127] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/25/2022]
Abstract
New photochromic film was developed toward the preparation of anti-counterfeiting documents utilizing inorganic/organic nanocomposite enclosing a photoluminescent inorganic pigment and a polyacrylic binder polymer. To generate a translucent film from pigment/polyacrylic nanocomposite, the phosphorescent strontium aluminum oxide pigment should be well-dispersed in the solution of the polyacrylic-based binder without agglomeration. The photochromic nanocomposite was applied efficiently onto commercial cellulose paper documents utilizing the effective and economical spray-coating technology followed with thermofixation. A homogeneous photochromic film was immobilized onto cellulose paper surface to introduce a transparent film changing to greenish-yellow upon exposure to ultraviolet light as depicted by CIE coloration measurements. The photochromic effect was monitored at lowest pigment concentration (0.25 wt%). The spray-coated paper documents exhibit two absorbance bands at 256 and 358 nm, and two fluorescence peaks at 433 and 511 nm. The morphologies of the spray-coated documents were explored. The spray-coated paper sheets showed a reversible photochromic effect without fatigue under ultraviolet irradiation. The rheology of the produced photochromic composites as well as the mechanical properties and photostability of the spray-coated documents were studied.
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Affiliation(s)
- Omnia M Mokhtar
- Department of Laser in Meteorology, Photochemistry and Agriculture, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Yasser A Attia
- Department of Laser in Meteorology, Photochemistry and Agriculture, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Ahmed R Wassel
- Electron Microscope and Thin Film Department, Physics Research Division National Research Centre, Giza, Egypt
| | - Tawfik A Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, Egypt
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Hameed A, Aljuhani E, Bawazeer TM, Almehmadi SJ, Alfi AA, Abumelha HM, Mersal GAM, El-Metwaly N. Preparation of multifunctional long-persistent photoluminescence cellulose fibres. LUMINESCENCE 2021; 36:1781-1792. [PMID: 34309162 DOI: 10.1002/bio.4123] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 12/23/2022]
Abstract
Simple preparation of flame-retardant, photoluminescent, and superhydrophobic smart nanocomposite coating was developed and applied onto cotton fibres using the simple pad-dry-cure technique. This novel strategy involved the immobilization of rare-earth-doped aluminium strontium oxide (ASO; SrAl2 O4 :Eu+2 ,Dy+3 ) nanoparticles, environmentally friendly room temperature vulcanizing silicone rubber (RTV) and environmentally friendly Exolet AP422 (Ex). The fabrics were also able to produce a char film in the fire-resistant assessment, providing fibres with a self-extinguishing characteristic. Furthermore, the fire-retardant performance of the coated cotton samples remained resistant to washing over 35 laundry cycles. The superhydrophobicity of the treated fabrics was monitored to improve by increasing the photoluminescent phosphor nanoparticles. The produced transparent photoluminescent film displayed an absorption at 360 nm and an emission at 526 nm. The photoluminescent fabrics were observed to generate different colorimetric shades, including white, green-yellow and bright white as monitored by Commission Internationale de l'Éclairage laboratory colorimetric coordinates. Slow emissions were detected for the treated cotton fabrics as monitored by emission, ultraviolet-visible light absorption, lifetime, and decay time spectral profiles to indicate glow in the dark phosphorescence effect. Both comfort and mechanical properties of the coated fibres were evaluated by measuring their bending length and air permeability.
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Affiliation(s)
- Ahmed Hameed
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Enas Aljuhani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Tahani M Bawazeer
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Samar J Almehmadi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Hana M Abumelha
- Department of Chemistry, Faculty of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Gaber A M Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Nashwa El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Egypt
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Khattab TA, Tolba E, Gaffer H, Kamel S. Development of Electrospun Nanofibrous-Walled Tubes for Potential Production of Photoluminescent Endoscopes. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01519] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
| | - Emad Tolba
- Polymers and Pigments Department, National Research Centre, Cairo 12622, Egypt
| | - Hatem Gaffer
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
| | - Samir Kamel
- Cellulose and Papers Department, National Research Centre, Cairo 12622, Egypt
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Radwan AS, Makhlouf MM. Synthesis, characterization, and self-assembly of fluorescent fluorine-containing liquid crystals. LUMINESCENCE 2021; 36:1751-1760. [PMID: 34235848 DOI: 10.1002/bio.4117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/27/2021] [Accepted: 07/04/2021] [Indexed: 01/04/2023]
Abstract
SN Ar has been used to synthesize various functionalized derivatives of pentafluorobenzenes which are highly specific at the para position; and consequently are ideal for building calamitic (rod-like) liquid crystalline molecular systems. Here, we display the effectiveness of SN Ar chemistry as a convenient method toward the synthesis of fluorescent liquid crystalline perfluorinated comprising ethers and thioethers in excellent yields and high purity. In the current work, we describe the synthesis, self-assembly, and mesogenic properties of new perfluorinated para-terphenyls bearing various para-substituted alkoxy and thioalkoxy chains. The terphenyl core was prepared using Cu(I) (or Cu(I)/phenanthroline)-catalyzed decarboxylative carbon-carbon (or carbon-oxygen [sulfur]) cross-coupling from the analogous aromatic iodide and fluorobenzoate potassium salt. The molecular structures of the prepared perfluorinated terphenyls were demonstrated with 1 H, 13 C, and 19 F NMR, as well as FT-IR and X-ray crystallography. The liquid crystalline properties and mesogenic phases were characterized with differential scanning calorimetry and high-resolution polarized optical microscope. Both UV-visible absorbance and emission spectra demonstrated solvatochromism. Supramolecular self-assembly of the generated perfluorinated para-terphenyls was monitored by van der Waals and π-π stacking interaction forces. The creation of nanofibrous architectures was monitored by scanning electron microscopy.
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Affiliation(s)
- Ahmed S Radwan
- Department of Sciences and Technology, Ranyah University Collage, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Mohamed M Makhlouf
- Department of Sciences and Technology, Ranyah University Collage, Taif University, P.O. Box 11099, Taif, Saudi Arabia
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Al-Qahtani S, Aljuhani E, Felaly R, Alkhamis K, Alkabli J, Munshi A, El-Metwaly N. Development of Photoluminescent Translucent Wood toward Photochromic Smart Window Applications. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01603] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Salhah Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia
| | - Enas Aljuhani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Rasha Felaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Kholood Alkhamis
- Department of Chemistry, College of Science, University of Tabuk, Tabuk 47711, Saudi Arabia
| | - Jafar Alkabli
- Department of Chemistry, College of Science and Arts-Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia
| | - Alaa Munshi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Nashwa El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura 35516, Egypt
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