Bioinspired non-aromatic compounds emitters displaying aggregation independent emission and recoverable photo-bleaching

Xu, Cui; Guan, Ruifang; Cao, Duxia; Liu, Kaerdun; Chen, Qifeng; Ding, Yunqiao; Yan, Yun

doi:10.1016/j.talanta.2019.120232

Cited by 15 publications

(9 citation statements)

References 29 publications

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“…Fluorescence dyes, due to their on‐off nature, are usually the visible and effective probes in many fields, and some researchers also attempted to detect some specific fluorescent quenchers with the intrinsic fluorescence of nonconventional luminophores . For example, accurate Fe 3+ detection should be an urgent requirement for diagnosing many disorders, such as malaria, anemia, and PD.…”

Section: Nonconventional Biomolecular Luminophoresmentioning

confidence: 99%

“…[42] It was found that its emission was aggregation-independent due to the strong intramolecular hydrogen-bonding, which promoted the electron overlap according to the CTE mechanism. [42]…”

Section: Carbohydratesmentioning

confidence: 99%

“…[17,40a] Xu et al also applied a biomolecule-originated nonconventional luminophore (CA-PDA) in metal-ion sensing in aqueous media, which realized specific trace detection of Hg 2 + . [42] Besides, explosive detection has been also achieved by various nonconventional luminophores. Specifically, PU/DMF solutions (50 mg mL À 1 ) could be applied as a probe of picric acid (PA), [11e] a commercially available model explosive.…”

Section: Fluorescent Sensorsmentioning

confidence: 99%

“…Due to the remarkable intrinsic fluorescence, low cytotoxicity, excellent biocompatibility, and hydrophilicity of these nonaromatic biomolecules, it is rational to apply them in cell/bacteria imaging or biotags …”

Section: Nonconventional Biomolecular Luminophoresmentioning

confidence: 99%

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Intrinsic Luminescence from Nonaromatic Biomolecules

2020

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Novel emitters that do not contain traditional chromophores but only electron-rich moieties (e. g. amine, C=O, À OH, ether, and imide), which are classified as nonconventional luminophores, have been more frequently reported. Although more and more examples have been demonstrated, their emission mechanism remains unclear. The clustering-triggered emission (CTE) mechanism has previously been proposed to rationalize the luminescence of unconventional chromophores. Moreover, great attention has been paid to the distinctive inherent luminescence from nonaromatic biomolecules such as cellulose, starch, sugars, and nonaromatic amino acids and proteins. In this Review, we summarize these unconventional biomolecular luminophores and apply the CTE mechanism to rationalize such a phenomenon. This Review may shed new light on the understanding of intrinsic emission of nonaromatic biomolecules and decipher the intrinsic fluorescence from cells and tissues.

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Section: Nonconventional Biomolecular Luminophoresmentioning

confidence: 99%

“…[42] It was found that its emission was aggregation-independent due to the strong intramolecular hydrogen-bonding, which promoted the electron overlap according to the CTE mechanism. [42]…”

Section: Carbohydratesmentioning

confidence: 99%

Section: Fluorescent Sensorsmentioning

confidence: 99%

Section: Nonconventional Biomolecular Luminophoresmentioning

confidence: 99%

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Intrinsic Luminescence from Nonaromatic Biomolecules

2020

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“…As is shown in Figure 1 , AIE fluorophores exhibit bright fluorescence in the aggregated state but very weak fluorescence in good solvent, making them ideal “turn-on” fluorescent probes for bioanalysis ( Chen et al, 2020a ; Huang et al, 2020a ; Li et al, 2020a ; Yang et al, 2020a ; Zhang et al, 2020b ; Korzec et al, 2020 ). With sufficient special and unique optical properties, including their simple molecular structure ( Pratihar et al, 2020 ), high SNR (signal-to-noise ratio) ( Xu et al, 2020a ), high luminescence efficiency ( Ma et al, 2020a ; Fei et al, 2020 ; Leng et al, 2020 ), excellent photostability ( Jiang et al, 2020a ; Mondal et al, 2020a ; Wei et al, 2020 ), and biocompatibility ( Xu et al, 2020b ; Zhu et al, 2020 ), AIE fluorescent probes have been widely used as fluorescent components of molecular probes and nanoprobes for biomedical applications in clinical examination and therapy as well as in biological sensing ( Gao et al, 2020b ; Zhao et al, 2020b ; Xu et al, 2020c ; Su et al, 2020 ) and in vivo theranostics.…”

Section: Introductionmentioning

confidence: 99%

Insights into AIE materials: A focus on biomedical applications of fluorescence

et al. 2022

Front. Chem.

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Aggregation-induced emission (AIE) molecules have garnered considerable interest since its first appearance in 2001. Recent studies on AIE materials in biological and medical areas have demonstrated that they show their promise as biomaterials for bioimaging and other biomedical applications. Benefiting from significant advantages of their high sensitivity, excellent photostability, and good biocompatibility, AIE-based materials provide dramatically improved analytical capacities for in vivo detection and demonstration of vital biological processes. Herein, we introduce the development history of AIE molecules and recent progress in areas of biotesting and bioimaging. Additionally, this review also offers an outlook for the potential applications of versatile AIE materials for tracing and treating pathological tissues, including overcoming challenges and feasible solutions.

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Persistent Room‐Temperature Phosphorescent Organohydrogels Based on Nonaromatic Luminogens Crosslinked by Hydrogen Bonds

Deng,

Liu,

Liu

et al. 2024

Adv Funct Materials

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The development of persistent room‐temperature phosphorescent (pRTP) hydrogels is important for the practical applications of organic phosphors. Unfortunately, the phosphorescence emission of nontraditional luminogens (NTLs) can be strongly quenched by water in hydrogel networks. Herein, a series of pRTP organohydrogels based on NTLs are prepared by dissolving poly(vinyl alcohol) (PVA), biuret (BIU) and poly(maleic acid) (PMAc) (or other nonaromatic macromolecular acids) in a glycerol/water mixed solvent, followed by a simple freezing‐thawing treatment. Very impressively, the organohydrogel exhibits remarkable excitation‐dependent and metal cation‐responsive phosphorescence with a maximum lifetime up to 782.8 ms at ambient conditions. Moreover, the organohydrogels treated with metal cations also have excitation‐dependent phosphorescence. Multidimensional information encryption can be achieved by simply printing solutions of metal cations onto the gel surface and switching the irradiation lights, or using gel blocks prepared with different macromolecular acids. Structural characterizations, mechanical tests, and comparative studies prove that hydrogen bonding between BIU and macromolecular chains leads to rigidification of molecular conformations and the cooperative effect of the components leads to the pRTP of the organohydrogels. This work provides a reliable strategy for the preparation of nonaromatic phosphorescent hydrogels with long afterglows and greatly expands the practical applications of phosphorescent materials.

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Bioinspired non-aromatic compounds emitters displaying aggregation independent emission and recoverable photo-bleaching

Cited by 15 publications

References 29 publications

Intrinsic Luminescence from Nonaromatic Biomolecules

Intrinsic Luminescence from Nonaromatic Biomolecules

Insights into AIE materials: A focus on biomedical applications of fluorescence

Persistent Room‐Temperature Phosphorescent Organohydrogels Based on Nonaromatic Luminogens Crosslinked by Hydrogen Bonds

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