Strain sensing multi-stimuli responsive light emitting lanthanide-based tough and stretchable hydrogels with tunable luminescence and fast self-recovery using metal–ligand and hydrophobic interactions

Panda, Prachishree; Dutta, Agniva; Pal, Sourabh; Ganguly, Debabrata; Chattopadhyay, Santanu; Das, Narayan Chandra; Das, Rajat K.

doi:10.1039/d2nj05263f

Cited by 8 publications

(2 citation statements)

References 46 publications

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“…In recent decades, photoluminescent (PL) sensors have received increasing attention in various applications. [1][2][3][4] When light is used as an information carrier for a measurement device or sensor, advantages such as noncontact, high penetrability, and fast response allow substantial temporal and spatial resolution. Depending on the physicochemical characteristics of the materials, their photoluminescence can be sensitive to various physical variables.…”

Section: Introductionmentioning

confidence: 99%

Energy Transfer in Mixed Lanthanides Complexes: Toward High‐Performance Pressure Sensors Based on the Luminescence Intensity Ratio

Zhou,

Ledoux,

Bois

et al. 2024

Advanced Optical Materials

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In this study, a reversible pressure‐sensing material with high sensitivity is presented. Mixed β‐diketonate complexes of Tb3+ and Eu3+ [(Ln)(acac)3phen] are synthesized with phenanthroline as an ancillary ligand. The organic ligands provide the antenna effect to make the Ln3+ complex excitable at 405 nm. Eu3+ emission results from efficient energy transfer (ET) from Tb3+. Under 405 nm excitation, the emission intensity of Tb3+ decreases whereas the emission intensity of Eu3+ increases with pressure, making this complex a potential pressure sensor based on luminescent‐intensity‐ratio (LIR) up to 700 MPa. This study then discusses the application of this Tb3+/Eu3+ complex for pressure sensing depending on measurement conditions. The addition of the optically neutral ion Y3+ to the system can reduce the impact of pressure‐induced structural defects on the emission, thus improving the reversibility of the LIR variation as a function of pressure. Therefore, a self‐calibrating, reliable, and reversible pressure‐sensing material is proposed here, with remarkable pressure sensitivity compared to a peak shift‐based pressure sensor.

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Section: Introductionmentioning

confidence: 99%

Energy Transfer in Mixed Lanthanides Complexes: Toward High‐Performance Pressure Sensors Based on the Luminescence Intensity Ratio

Zhou,

Ledoux,

Bois

et al. 2024

Advanced Optical Materials

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“…Through the fine design of terpyridine-based molecules, ion-sensing smart hydrogel materials have been developed. Panda et al reported double physical cross-linked luminescent hydrogels prepared via the copolymerization of acrylamide, methacrylic acid, and 6-(2,2 ′ ;6 ′ ,2 ′′ -terpyridine-4 ′ -acyloxide)-hexyl acrylamide) [13]. By adjusting the molar ratio of terpyridine sensitizers and Eu 3+ /Tb 3+ , the hydrogels exhibited desirable mechanical properties, wide emission spectra, and selfhealing properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Multiple Stimuli-Responsive Fluorescent Polymer Hydrogels Based on Terpyridine and N-Isopropylacrylamide

Ma,

Zhao,

Xie

et al. 2024

Polymers

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A series of stimuli-responsive fluorescent hydrogels were successfully synthesized via micelle radical copolymerization of hydrophilic acrylamide (AM), hydrophobic chromophore terpyridine-based monomer (TPY), and N-isopropylacrylamide (NIPAM). These hydrogels presented blue emissions (423–440 nm) under room temperature, which is caused by the π-π* transition of the conjugated structures. Once the ambient temperature was increased to 55 °C, the fluorescence color changed from blue (430 nm) to pink (575 nm) within 10 min, subsequently to yellow (535 nm), and eventually back to pink. The thermal-responsive properties are attributed to the transition of the TPY units from unimer to dimer aggregation via the intermolecular charge transfer complex at high temperatures. The hydrogels showed pH-responsive properties. The emission peak of the hydrogel exhibited a blue shift of ~54 nm from neuter conditions to acidic conditions, while a 6 nm red shift to an alkaline environment was observed. The hydrogels demonstrated an obvious change in fluorescence intensity and wavelength upon adding different metal ions, which is caused by the coordination between the terpyridine units incorporated on the backbones and the metal ions. As a consequence, the hydrogels presented a sharp quenching fluorescence interaction with Fe2+, Fe3+, Cu2+, Hg2+, Ni2+, and Co2+, while it exhibited an enhanced fluorescence intensity interaction with Sn2+, Cd2+, and Zn2+. The microstructural, mechanical, and rheological properties of these luminescent hydrogels have been systematically investigated.

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Fluorescent hydrogel with high toughness response based on lanthanide Metals: Material Adhesion, multicolor Modulation, information encryption

Xu,

Zhan,

et al. 2024

Chemical Engineering Journal

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Strain sensing multi-stimuli responsive light emitting lanthanide-based tough and stretchable hydrogels with tunable luminescence and fast self-recovery using metal–ligand and hydrophobic interactions

Abstract: Lanthanide-based hydrogels have recently attracted massive interest due to their multipurpose applications like optical sensing, optical image probe, UV OLED, electroluminescent device and biological applications. Here we have developed dual...

Cited by 8 publications

References 46 publications

Energy Transfer in Mixed Lanthanides Complexes: Toward High‐Performance Pressure Sensors Based on the Luminescence Intensity Ratio

Energy Transfer in Mixed Lanthanides Complexes: Toward High‐Performance Pressure Sensors Based on the Luminescence Intensity Ratio

Synthesis and Characterization of Multiple Stimuli-Responsive Fluorescent Polymer Hydrogels Based on Terpyridine and N-Isopropylacrylamide

Fluorescent hydrogel with high toughness response based on lanthanide Metals: Material Adhesion, multicolor Modulation, information encryption

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