Determining the Critical Particle Size to Induce Enhanced Emission in Aggregates of a Highly Twisted Triarylamine

Kokil, Akshay; Chudomel, J. Matthew; Yang, Boqian; Barnes, Michael D.; Lahti, Paul M.; Kumar, Jayant

doi:10.1002/cphc.201300667

Cited by 6 publications

(5 citation statements)

References 37 publications

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“…The triarylamine derivative 213 is another example of AIEgens with an anthracenyl element (Figure 47). 271 Luminogen 213 can be taken as an analogue of TPA where one of the phenyl rings is replaced with an anthracene unit. The anthracenyl moiety can be mainly viewed as a large stator; however, in some sense it can also act as a bulky rotor.…”

Section: Chemical Reviewsmentioning

confidence: 99%

Aggregation-Induced Emission: Together We Shine, United We Soar!

et al. 2015

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Section: Chemical Reviewsmentioning

confidence: 99%

Aggregation-Induced Emission: Together We Shine, United We Soar!

et al. 2015

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“…This aggregation induced blue-shifted emission (AIBSE) phenomenon has also been found in other AIEgens systems38. When the AIE molecules aggregate together, the effective polarity experienced by the luminogenic molecules in the microenvironment is reduced, which results in a blue shift of the emitted light32, 39. Likewise, we chose the 405 nm laser to excite AIEgens microbeads and nanobeads, and high fluorescent AIEgens microbeads and nanobeads were observed under the excitation of 405 nm laser.…”

Section: Resultsmentioning

confidence: 53%

AIEgens Barcodes Combined with AIEgens Nanobeads for High-sensitivity Multiplexed Detection

Wu¹,

Wang²,

Shen³

et al. 2019

Theranostics

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Suspension arrays based on optical encoded microspheres have attracted great attention for multiplexed detection in gene analysis, protein profiling, early disease diagnosis, treatment monitoring and so on. However, the fluorescence stability of barcodes and detection sensitivity require further improvement to meet the increasing demands of “precision diagnosis”. Methods: This work reports a novel suspension array platform based on extremely stable AIEgens (AIE33 and AIE NIR800) microbeads as barcodes and AIEgens (1,1,2,3,4,5-Hexaphenyl-1H-silole, HPS) nanobeads as fluorescent signal reporter coupled with flow cytometry for multiplexed detection. Results: Due to the excellent fluorescent signal amplification effect of the HPS nanobeads, our multiplex assay showed enhanced detection sensitivity, compared to multiplex assay using QDs nanobeads (up to 3-fold improvement) and commercial organic dye of phycoerythrin (up to 5-fold improvement) as the fluorescent signal reporters. Conclusion: Furthermore, validating experiments showed similar detection performance to the clinical gold-standard method of ImmunoCAP for allergen detection in patient serum samples, demonstrating the suspension array platform based on AIEgens microbeads with excellent fluorescence stability and AIEgens nanobeads with strong signal amplification ability is promising for high-sensitivity multiplexed bioassay applications.

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“…For S2 , four DSA moieties were distributed on the outside of the rhombic skeleton and exhibited a high degree of freedom. It is hypothesized that by the addition of H 2 O, the individual assembly gathers together to form microaggregates, thereby providing an internal hydrophobic environment to reduce the CT effect and subsequently resulting in the blue shift of the emission band of S2 . , In addition, we also explored the electronic transitions in the excited states of ligands and metallacycles through time-dependent density functional theory (TD-DFT) calculations (Figures S50–S52). Tables S1–S3 and Figure S45 show the relative fluorescence quantum yields (Φ F ) of the two metallacycles with different H 2 O contents.…”

Section: Resultsmentioning

confidence: 99%

Discrete Platinum(II) Metallacycles with Inner- and Outer-Modified 9,10-Distyrylanthracene: Design, Self-Assembly, and Luminescence Properties

Shi

et al. 2022

Inorg. Chem.

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To completely unravel the relationship between structures and luminescence properties of inner- and outer-modified metallacycles, two rhombic metallacycles S1 and S2 with 9,10-distyrylanthracene (DSA) were constructed herein via the design of DSA moieties on the inside or outside of metallacycles. Similar building blocks of the two metallacycles led to the same emission wavelengths in a dilute solution. In contrast, their fluorescence emissions in the aggregation and solid states were significantly different and revealed interesting emission behaviors from structures with inner- and outer-modified design. Finally, based on their luminescence properties, a tunable solid-state fluorescence emissive material was easily obtained by the mixing of two supramolecules in different ratios. This unique design suggested that the modified position of fluorophores exerts a key impact on the adjustment of luminescence from a dilute solution to the aggregated state and will be of great significance for the development of luminescent materials based on supramolecules.

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Determining the Critical Particle Size to Induce Enhanced Emission in Aggregates of a Highly Twisted Triarylamine

Cited by 6 publications

References 37 publications

Aggregation-Induced Emission: Together We Shine, United We Soar!

Aggregation-Induced Emission: Together We Shine, United We Soar!

AIEgens Barcodes Combined with AIEgens Nanobeads for High-sensitivity Multiplexed Detection

Discrete Platinum(II) Metallacycles with Inner- and Outer-Modified 9,10-Distyrylanthracene: Design, Self-Assembly, and Luminescence Properties

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