Advanced Properties and Applications of AIEgens-Inspired Smart Materials

Roy, Ekta; Nagar, Achala; Chaudhary, Sandeep; Pal, Souvik

doi:10.1021/acs.iecr.0c01869

Cited by 30 publications

(19 citation statements)

References 121 publications

(196 reference statements)

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“…AIE polymers combine the benefits of polymeric materials with AIE luminogens, and they exhibit distinct features compared to standard fluorophores and low-mass AIE materials for practical applications. The primary technique for producing AIE polymers is to integrate aggregation-induced, emission-based fluorescent materials (AIEgens) [ 130 , 131 , 132 ] into polymer backbones or as polymer pendants via polymerization and modification.…”

Section: Aggregation-induced Emission Macromoleculesmentioning

confidence: 99%

Fluorescent Polymers Conspectus

Ahumada

Borkowska

2022

Polymers

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The development of luminescent materials is critical to humankind. The Nobel Prizes awarded in 2008 and 2010 for research on the development of green fluorescent proteins and super-resolved fluorescence imaging are proof of this (2014). Fluorescent probes, smart polymer machines, fluorescent chemosensors, fluorescence molecular thermometers, fluorescent imaging, drug delivery carriers, and other applications make fluorescent polymers (FPs) exciting materials. Two major branches can be distinguished in the field: (1) macromolecules with fluorophores in their structure and (2) aggregation-induced emission (AIE) FPs. In the first, the polymer (which may be conjugated) contains a fluorophore, conferring photoluminescent properties to the final material, offering tunable structures, robust mechanical properties, and low detection limits in sensing applications when compared to small-molecule or inorganic luminescent materials. In the latter, AIE FPs use a novel mode of fluorescence dependent on the aggregation state. AIE FP intra- and intermolecular interactions confer synergistic effects, improving their properties and performance over small molecules aggregation-induced, emission-based fluorescent materials (AIEgens). Despite their outstanding advantages (over classic polymers) of high emission efficiency, signal amplification, good processability, and multiple functionalization, AIE polymers have received less attention. This review examines some of the most significant advances in the broad field of FPs over the last six years, concluding with a general outlook and discussion of future challenges to promote advancements in these promising materials that can serve as a springboard for future innovation in the field.

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Section: Aggregation-induced Emission Macromoleculesmentioning

confidence: 99%

Fluorescent Polymers Conspectus

Ahumada

Borkowska

2022

Polymers

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“…Due to their unique porous crystalline structure, high surface area, and versatile functionalities, MOFs are considered ideal candidates for selective sensing (Fan et al, 2020b;Roy et al, 2020;Lei et al, 2021;Li et al, 2021).…”

Section: Zinc-metal-organic Framework For Biological Targets Sensingmentioning

confidence: 99%

Luminescent Zn (II)-Based Nanoprobes: A Highly Symmetric Supramolecular Platform for Sensing of Biological Targets and Living Cell Imaging

et al. 2021

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Zinc (II) cation is an environmentally friendly metal, less expensive, easy to dispose of, and managed. Highly engineered symmetric systems can be built using zinc (II) atoms as the metal nodes of hybrid organic-inorganic supramolecular structures. In biological contexts, luminescent zinc-based nanoprobes are in growing demand. Specifically, they are currently employed to detect biologically and environmentally relevant analytes, in therapeutic drug delivery, and for bioimaging and diagnostic techniques monitoring aspects of cellular functions. This review will provide a systematic and consequential approach to zinc-based nanoprobes, including zinc-based MOFs and other zinc-based organized nanoparticles. A progression from detecting the biological target to the intracellular sensing/marking/carriage has been followed. A selection of significant cutting-edge articles collected in the last five years has been discussed, based on the structural pattern and sensing performance, with special notice to living cell bioimaging as the most targeted and desirable application.

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“…However, no specialized review was available about the chemical sensing of crystalline porous materials. [ 22 ] This article summarizes the recent research progress of the fluorescence properties of AIEgen‐based crystalline porous materials, discusses the relative AIE mechanism, and highlights their recent applications in molecular recognition.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in AIEgen‐based crystalline porous materials for chemical sensing

2021

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Aggregation‐induced emission‐based luminogens (AIEgens) have aroused enormous interest due to their unique high fluorescence in a condensed state. To further explore their potential applications, such as chemical monitoring, immobilization of AIE molecules has been widely studied with a variety of supports. Crystalline porous materials, such as metal‐organic frameworks, covalent organic frameworks, hydrogen‐bonded organic framework, and organic cages, demonstrate well‐controlled structures, large surface areas, and promising stabilities, thus providing a perfect platform for AIE agents loading. Outstanding chemical sensing performances are achieved based on these AIE‐active crystalline porous materials, such as high sensitivity, short response time, selective identification, and high recyclability, which provide a new alternative to readily detect various hazardous molecules. Furthermore, precise structures of AIEgen‐based crystalline porous materials offer an easy way to investigate detection mechanisms. This mini‐review will provide a brief overview of AIEgen‐based crystalline porous materials for detection and then address how to improve sensing performances remarkably.

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Advanced Properties and Applications of AIEgens-Inspired Smart Materials

Cited by 30 publications

References 121 publications

Fluorescent Polymers Conspectus

Fluorescent Polymers Conspectus

Luminescent Zn (II)-Based Nanoprobes: A Highly Symmetric Supramolecular Platform for Sensing of Biological Targets and Living Cell Imaging

Recent advances in AIEgen‐based crystalline porous materials for chemical sensing

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