Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications

Abstract Metal‐free organic molecules with structurally diverse aggregation‐induced emission (AIE) behavior and new functional photophysical properties reveal unique structure–property relationships, especially bright luminescence, and have attracted extensive attention in the past few decades. Desp...

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Main Authors: Debasish Barman, Kavita Narang, Retwik Parui, Nehal Zehra, Mst Nasima Khatun, Laxmi Raman Adil, Parameswar Krishnan Iyer
Format: Article
Language:English
Published: Wiley 2022-10-01
Series:Aggregate
Subjects:
Online Access:https://doi.org/10.1002/agt2.172
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author Debasish Barman
Kavita Narang
Retwik Parui
Nehal Zehra
Mst Nasima Khatun
Laxmi Raman Adil
Parameswar Krishnan Iyer
author_facet Debasish Barman
Kavita Narang
Retwik Parui
Nehal Zehra
Mst Nasima Khatun
Laxmi Raman Adil
Parameswar Krishnan Iyer
author_sort Debasish Barman
collection DOAJ
description Abstract Metal‐free organic molecules with structurally diverse aggregation‐induced emission (AIE) behavior and new functional photophysical properties reveal unique structure–property relationships, especially bright luminescence, and have attracted extensive attention in the past few decades. Despite tremendous progress on fluorescent molecules development, the extended π‐conjugated organic AIE probes with their nanorange self‐assembly, coassembly, unique morphology, high biocompatibility, and light‐harvesting capabilities enable them as potential candidates in numerous translational application perspectives. In particular, a few important classes of AIE light up small molecules, supramolecules, oligomers, polymers, including nanoparticles and photosensitizer molecules, with their emerging properties of thermally activated delayed fluorescence, room temperature phosphorescence, including emission switching stimuli‐responsive behavior and multifunctional properties, have been boosted by the rare features of aggregation at their condensed or solid states. This review highlights salient features of AIE‐based emitters, encompassing molecular design strategies, stimulating photophysical properties, mechanistic aspects, and their efficacy in various electronic and biomedical applications, broadly covering properties of small molecules to oligomers, macromolecules to polymers.
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spelling doaj.art-22a3e36db0414a54a1f351fb3f0fb38c2022-12-22T04:06:31ZengWileyAggregate2692-45602022-10-0135n/an/a10.1002/agt2.172Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applicationsDebasish Barman0Kavita Narang1Retwik Parui2Nehal Zehra3Mst Nasima Khatun4Laxmi Raman Adil5Parameswar Krishnan Iyer6Department of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaDepartment of Chemistry School of Health Science and Technology Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati IndiaAbstract Metal‐free organic molecules with structurally diverse aggregation‐induced emission (AIE) behavior and new functional photophysical properties reveal unique structure–property relationships, especially bright luminescence, and have attracted extensive attention in the past few decades. Despite tremendous progress on fluorescent molecules development, the extended π‐conjugated organic AIE probes with their nanorange self‐assembly, coassembly, unique morphology, high biocompatibility, and light‐harvesting capabilities enable them as potential candidates in numerous translational application perspectives. In particular, a few important classes of AIE light up small molecules, supramolecules, oligomers, polymers, including nanoparticles and photosensitizer molecules, with their emerging properties of thermally activated delayed fluorescence, room temperature phosphorescence, including emission switching stimuli‐responsive behavior and multifunctional properties, have been boosted by the rare features of aggregation at their condensed or solid states. This review highlights salient features of AIE‐based emitters, encompassing molecular design strategies, stimulating photophysical properties, mechanistic aspects, and their efficacy in various electronic and biomedical applications, broadly covering properties of small molecules to oligomers, macromolecules to polymers.https://doi.org/10.1002/agt2.172aggregation‐induced emissionmacromoleculesphotosensitizerspolymersroom temperature phosphorescencesmall molecules
spellingShingle Debasish Barman
Kavita Narang
Retwik Parui
Nehal Zehra
Mst Nasima Khatun
Laxmi Raman Adil
Parameswar Krishnan Iyer
Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
Aggregate
aggregation‐induced emission
macromolecules
photosensitizers
polymers
room temperature phosphorescence
small molecules
title Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
title_full Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
title_fullStr Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
title_full_unstemmed Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
title_short Review on recent trends and prospects in π‐conjugated luminescent aggregates for biomedical applications
title_sort review on recent trends and prospects in π conjugated luminescent aggregates for biomedical applications
topic aggregation‐induced emission
macromolecules
photosensitizers
polymers
room temperature phosphorescence
small molecules
url https://doi.org/10.1002/agt2.172
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