Lanthanides-based luminescent hydrogels applied as luminescent inks for anti-counterfeiting

Zhao, Sicong; Gao, Min; Li, Jingfang

doi:10.1016/j.jlumin.2021.118128

Cited by 37 publications

(20 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…43,44 considered to be promising because of their distinctive optical and chemical properties, superior security, and difficult duplication. 45,46 With the information presented above, it is essential that Ln-MOFs possess excellent water stability when they are studied as fluorescent probes of biomarkers, because water is found in most biological processes. 47 For Ln-MOFs, a suitable chelating model of ligands is beneficial to restrain the attack by water due to the existence of relatively weak Ln-O coordination bonds.…”

Section: ■ Introductionmentioning

confidence: 99%

Lanthanide–Organic Frameworks with Uncoordinated Lewis Base Sites: Tunable Luminescence, Antibiotic Detection, and Anticounterfeiting

Guo

Zhang

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

Several new isostructural lanthanide metal–organic frameworks (Ln-MOFs), {[Ln2(L)3DMA4]·2DMA} n (1-Ln, where Ln = Eu, Tb, or Eu x Tb1–x ), were first constructed via the solvothermal reactions of 4,6-di(4-carboxyphenyl)pyrimidine and Ln3+ ions. 1-Ln exhibits a 4-connected two-dimensional framework endowed with uncoordinated Lewis base sites. An exploration of luminescence sensing demonstrated 1-Eu can be used for the selectivity detection of dimetridazole and metronidazole antibiotics in other antibiotics, blood plasma, and urine, acting as an exceptional recyclable luminescent probe. More importantly, the luminescent inks of 1-Ln are invisible, color adjustable, and stabilized, which may greatly improve their anticounterfeiting applications.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Lanthanide–Organic Frameworks with Uncoordinated Lewis Base Sites: Tunable Luminescence, Antibiotic Detection, and Anticounterfeiting

Guo

Zhang

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…Flexible luminescent hydrogels were highly proficient in converting absorbed energy (like current, electric field, biologic processes, X-ray, chemical reaction, etc.) into electromagnetic radiation 110 , 111 . They can be extensively used in various applications, such as optoelectronics devices, field-effect transistors, detectors, medical diagnosis, bio-imaging, etc.…”

Section: Applications Prospectmentioning

confidence: 99%

One material, many possibilities via enrichment of luminescence in La2Zr2O7:Tb3+ nanophosphors for forensic stimuli aided applications

Lavanya

Darshan

Malleshappa

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Engineering a single material with multidirectional applications is crucial for improving productivity, low cost, flexibility, least power consumption, etc. To achieve these requirements, novel design structures and high-performance materials are in urgent need. Lanthanide-doped nanophosphors have the greatest strengths and ability in order to tune their applications in various dimensions. However, applications of nanophosphor in latent fingerprints visualization, anti-counterfeiting, and luminescent gels/films are still in their infancy. This study demonstrated a simple strategy to enhance the luminescence of Tb3+ (1–11 mol %) doped La2Zr2O7 nanophosphors by conjugating various fluxes via a simple solution combustion route. The photoluminescence emission spectra reveal intense peaks at ~ 491, 546, 587, and 622 nm, which arises from 5D4 → 7FJ (J = 6, 5, 4, 3) transitions of Tb3+ ions, respectively. The highest emission intensity was achieved in the NH4Cl flux assisted nanophosphor as compared to NaBr and NH4F assisted samples. The colorimetric images of fingerprints visualized using the optimized nanophosphor on forensic related surfaces exhibit level –III ridge details, including sweat pores, the width of the ridges, bifurcation angle, and the successive distance between sweat pores, etc. These results are decisive parameters that clearly support the statement “no two persons have ever been found to have the same fingerprints”. The anti-counterfeiting security ink was formulated using optimized nanophosphor and various patterns were designed by simple screen printing and dip pen technologies. The encoded information was decrypted only under ultraviolet 254 nm light. All the designed patterns are exhibit not just what it looks/feel like and how better it works. As a synergetic contribution of enhanced luminescence of the prepared nanophosphor, the green-emissive films were fabricated, which display excellent flexibility, uniformity, and transparency in the normal and ultraviolet 254 nm light illumination. The aforementioned results revealed that the prepared NH4Cl flux-assisted La2Zr2O7: Tb3+(7 mol %) NPs are considered to be the best candidate for multi-dimensional applications.

show abstract

“…[ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ] Lanthanide‐based materials with distinct optical performances, [ 9 , 10 , 11 , 12 , 13 , 14 , 15 ] such as multiple excited wavelengths, [ 16 ] tunable color emission, [ 17 ] different luminescence lifetime, [ 18 ] and good luminescent stability, [ 19 , 20 ] have displayed a great value in information storage and anticounterfeiting applications. [ 21 ] Common strategies developed to store information strongly rely on the preparation of luminescent inks based on lanthanide‐doped nanomaterials. [ 22 , 23 , 24 , 25 , 26 ] Information patterns are generally prepared by printing luminescent inks on external supporters.…”

Section: Introductionmentioning

confidence: 99%

“…[ 33 , 34 ] Previous information storage systems prepared using functional materials are generally limited to simple patterns, making it hard to design information encryption and thus greatly limiting their widespread applications. [ 21 , 35 , 36 ] The advancements of image processing techniques will enable the design of complex patterns for information encoding and decoding, which could greatly broaden the designs of information storage styles. In addition, information encryption could be implemented in the luminescence of the complex patterns.…”

Section: Introductionmentioning

confidence: 99%

Highly Plasticized Lanthanide Luminescence for Information Storage and Encryption Applications

et al. 2022

View full text Add to dashboard Cite

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

show abstract

Lanthanides-based luminescent hydrogels applied as luminescent inks for anti-counterfeiting

Cited by 37 publications

References 38 publications

Lanthanide–Organic Frameworks with Uncoordinated Lewis Base Sites: Tunable Luminescence, Antibiotic Detection, and Anticounterfeiting

Lanthanide–Organic Frameworks with Uncoordinated Lewis Base Sites: Tunable Luminescence, Antibiotic Detection, and Anticounterfeiting

One material, many possibilities via enrichment of luminescence in La2Zr2O7:Tb3+ nanophosphors for forensic stimuli aided applications

Highly Plasticized Lanthanide Luminescence for Information Storage and Encryption Applications

Contact Info

Product

Resources

About