Dynamic coordination of natural amino acids-lanthanides to control reversible luminescent switching of hybrid hydrogels and anti-counterfeiting

Li, Jingfang; Li, Weizuo; Xia, Diandong; Chen, Xiang; Chen, Yanjie; Li, Guangming

doi:10.1016/j.dyepig.2019.03.044

Cited by 33 publications

(14 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phenylalanine (Phe) has also been employed as sensitizer to enhance the lanthanide ions luminescence via an “antenna effect” and avoid water molecules quenching the luminescence of lanthanide ions. Its reaction with Tb(III) or Eu(III) using water as solvent led to long lifetimes of environment-friendly metallohydrogels since water molecules from the coordination sphere could be replaced by Phe molecules resulting in strong luminescence (green emission in case of Phe-Tb and red emission for Phe-Eu), with unclear solid-state structure ( Figure 20 ) [ 59 ].…”

Section: Hydrogels Based On Coordination Bonds With Bioinspired Ligandsmentioning

confidence: 99%

“… Images of luminescent ON/OFF behavior of Phe-Eu ( a ) and Phe-Tb ( c ) hydrogels subjected to pH stimuli under UV light; gel-sol transition images of Phe-Eu ( b ) and Phe-Tb ( d ) hydrogels exposed to pH stimuli under daylight; Photostability of the handwritten patterns “Phe-Tb” exposed to sunlight for different time ( e ). Adapted from reference [ 59 ] with permission, copyright 2018 Elsevier. …”

Section: Figurementioning

confidence: 99%

See 1 more Smart Citation

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Maldonado

Amo‐Ochoa

2021

Nanomaterials

View full text Add to dashboard Cite

This perspective article shows new advances in the synthesis of colloids, gels, and aerogels generated by combining metal ions and ligands of biological interest, such as nucleobases, nucleotides, peptides, or amino acids, among other derivatives. The characteristic dynamism of coordination bonds between metal center and biocompatible-type ligands, together with molecular recognition capability of these ligands, are crucial to form colloids and gels. These supramolecular structures are generated by forming weak van der Waals bonds such as hydrogen bonds or π–π stacking between the aromatic rings. Most gels are made up of nano-sized fibrillar networks, although their morphologies can be tuned depending on the synthetic conditions. These new materials respond to different stimuli such as pH, stirring, pressure, temperature, the presence of solvents, among others. For these reasons, they can trap and release molecules or metal ions in a controlled way allowing their application in drug delivery as antimicrobial and self-healable materials or sensors. In addition, the correct selection of the metal ion enables to build catalytic or luminescent metal–organic gels. Even recently, the use of these colloids as 3D-dimensional printable inks has been published. The elimination of the solvent trapped in the gels allows the transformation of these into metal–organic aerogels (MOAs) and metal–organic xerogels (MOXs), increasing the number of possible applications by generating new porous materials and composites useful in adsorption, conversion, and energy storage. The examples shown in this work allow us to visualize the current interest in this new type of material and their perspectives in the short-medium term. Furthermore, these investigations show that there is still a lot of work to be done, opening the door to new and interesting applications.

show abstract

Section: Hydrogels Based On Coordination Bonds With Bioinspired Ligandsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Maldonado

Amo‐Ochoa

2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Page 10/ 22 We gratefully acknowledge the nancial support provided by the National Natural Foundation of China (project 31270617) and the State Key Laboratory of Pulp and Paper Engineering (project 2016C12). The authors also thank Dr. Wu Lan for English editing assistance.…”

Section: Acknowledgmentsmentioning

confidence: 99%

Fluorescent Composite Hydrogel of Carboxymethyl Celluose-Eu(Ⅲ)/Polyvinyl Alcohol and Its Application in Functional Paper

Ye¹,

Ye²,

Xiong³

2021

Preprint

View full text Add to dashboard Cite

A novel carboxymethyl cellulose-Europium(Ⅲ)/polyvinyl alcohol (CMC-Eu(Ⅲ)/PVA) fluorescent hydrogel was prepared by a green and facile method. The hydrogel formed a physical cross-linking network under mild reaction conditions without using volatile organic chemical reagents. A porous structure was formed by the hydrogen bonding and other interaction between the PVA chains and the free hydroxyl on CMC-Eu(Ⅲ) during the composite gel transformation process. The addition of CMC-Eu(Ⅲ) improved the tensile and compressive mechanical properties of PVA hydrogel. When the CMC-Eu(Ⅲ) content was 15%, the maximum tensile stress of the composite hydrogel was 47.25±10.35 kPa and the compressive stress was 10.14±1.90 kPa. Meanwhile, the CMC-Eu(Ⅲ)/PVA hydrogels exhibited a 5D0→7F2 characteristic emission peak of Eu3+ at 615 nm, and emitted stable red fluorescence under UV irradiation at 254 nm. Moreover, the hydrogel was applied in making fluorescent paper as an internal sizing agent. When the amount of hydrogel was 1%, the tensile strength of fluorescent paper reached 3.52 kN/m, which is promising in the application of anti-counterfeiting.

show abstract

“…The PLE spectrum recorded by monitoring the green emission at 546 nm ( 5 D 4 → 7 F 5 transition of Tb 3+ ), exhibits a broad transition band ranging from 220 to 300 nm, with two strong bands centered at~234 nm and~260 nm, which are corresponding to the well-documented 4f 8 →4f 7 5d 1 transition of Tb 3+ [18,27] and 1 S 0 → 3 P 1 transition of Bi 3+ [24,25]. Upon UV excitation at~260 nm, the spheres displayed the typical emissions of Tb 3+ at 491 nm,~546 nm,~586 nm, and~622 nm, which are assigned to the 5 D 4 → 7 F J (J = 6-3) transitions of Tb 3+ [18,27], respectively (Figure 4(f)). Obviously, the green emission at~546 nm ( 5 D 4 → 7 F 5 transition of Tb 3+ ) takes the dominated role.…”

Section: Morphology and Phase Structurementioning

confidence: 99%

Implanting bismuth in color-tunable emitting microspheres of (Y, Tb, Eu)BO₃ to generate excitation-dependent and greatly enhanced luminescence for anti-counterfeiting applications

Zhu

Fan

Liu

et al. 2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

To prevent counterfeiting, a lot of advanced security technologies have been developed, including luminescent printing. Therefore, the pigments with advanced security features are urgently pursued for luminescence printing-based anti-counterfeiting technology.Here, micron-sized spheres of hexagonal-structured and color-tunable emitting (Y, Tb, Eu, Bi)BO 3 have been rapidly synthesized by microwave processing, followed by a proper annealing. Incorporation of Bi 3+ greatly enhances the emission intensity of Eu 3 + and of Tb 3+ . Under the excitation at 260 nm, the spheres exhibit UV emission at 330 nm ( 3 P 1 → 1 S 0 transition of Bi 3+ ), green emission at 546 nm ( 5 D 4 → 7 F 5 transition of Tb 3+ ) and orange-red emission at 592 nm ( 5 D 0 → 7 F 1 transition of Eu 3+ ), mainly due to the three energy transfer processes of Bi 3+ →Tb 3+ , Bi 3+ →Eu 3+ , and Tb 3+ →Eu 3+ . However, under the excitation at 230 nm, the Tb 3+ →Eu 3+ energy transfer contributes to the orange-red emission of Eu 3+ and the green emission of Tb 3+ , in the absence of Bi 3+ emission. The maximum energy transfer efficiency of Bi 3+ → "Eu 3+ and Tb 3+ " and Tb 3+ → Eu 3+ is 63% and 50% for (Y 0.883 Tb 0.02 Eu 0.09 Bi 0.007 )BO 3 . The (Y 0.963 Tb 0.02 Eu 0.01 Bi 0.007 )BO 3 spheres exhibit a distinct excitation-dependent luminescence behavior. Facile switching the excitation wavelength from 260 nm to 230 nm yields emission color changing from orange to green yellow, which possesses the advanced security feature.

show abstract

Dynamic coordination of natural amino acids-lanthanides to control reversible luminescent switching of hybrid hydrogels and anti-counterfeiting

Cited by 33 publications

References 53 publications

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Fluorescent Composite Hydrogel of Carboxymethyl Celluose-Eu(Ⅲ)/Polyvinyl Alcohol and Its Application in Functional Paper

Implanting bismuth in color-tunable emitting microspheres of (Y, Tb, Eu)BO₃ to generate excitation-dependent and greatly enhanced luminescence for anti-counterfeiting applications

Contact Info

Product

Resources

About

Dynamic coordination of natural amino acids-lanthanides to control reversible luminescent switching of hybrid hydrogels and anti-counterfeiting

Cited by 33 publications

References 53 publications

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Advances and Novel Perspectives on Colloids, Hydrogels, and Aerogels Based on Coordination Bonds with Biological Interest Ligands

Fluorescent Composite Hydrogel of Carboxymethyl Celluose-Eu(Ⅲ)/Polyvinyl Alcohol and Its Application in Functional Paper

Implanting bismuth in color-tunable emitting microspheres of (Y, Tb, Eu)BO3 to generate excitation-dependent and greatly enhanced luminescence for anti-counterfeiting applications

Contact Info

Product

Resources

About

Implanting bismuth in color-tunable emitting microspheres of (Y, Tb, Eu)BO₃ to generate excitation-dependent and greatly enhanced luminescence for anti-counterfeiting applications