Influence of molecular weight on the aggregation-induced emission enhancement and spectral stability of vinyl polymers containing the fluorescent 2,4,6-triphenylpyridine pendant groups

2012 ◽  
Vol 22 (19) ◽  
pp. 9546 ◽  
Author(s):  
Chung Tin Lai ◽  
Jin Long Hong
Keyword(s):  
Molecular Weight ◽  
Spectral Stability ◽  
Aggregation Induced Emission ◽  
Vinyl Polymers ◽  
Emission Enhancement

scholarly journals Rational Design for Multicolor Flavone-Based Fluorophores with Aggregation-Induced Emission Enhancement Characteristics and Applications in Mitochondria-Imaging

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2290
Author(s):  
Liyan Liu ◽  
Yaohui Lei ◽  
Jianhui Zhang ◽  
Na Li ◽  
Fan Zhang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Rational Design ◽  
Quantum Yields ◽  
Mixed Solution ◽  
Small Molecular Weight ◽  
Aggregation Induced Emission ◽  
Fluorescence Quantum Yields ◽  
Emission Enhancement ◽  
Low Cytotoxicity ◽  
Further Development

Fluorophores with aggregation-induced emission enhancement (AIEE) properties have attracted more attention in recent years. In order to realise more valuable applications, the different kinds of AIEE molecules are in serious need of further development. Therefore, a novel flavone-based AIEE system derived from restriction of intramolecular rotation (RIR) was designed and synthesized in this work. The results revealed that six of the compounds showed typical AIEE characteristics, with fluorescence emissions from purple, blue, cyan to green, tunable by changing substituent groups. This flavone-based AIEE system has never been reported before. The AIEE characteristics were investigated by optical spectroscopy, fluorescence photographs, scanning electron microscopy (SEM), fluorescence quantum yields (ФF) and fluorescence lifetime in the CH3OH/H2O mixed solution. Moreover, benefiting from the simple structures and small molecular weight, they could permeate cells faster than current high-molecular-weight AIEE molecules. Furthermore, to examine possible biomedical applications, fluorescence imaging in living A549 lung cells and cell viabilities were examined, and the results displayed that these fluorophores showed good cellular uptake and low cytotoxicity within the experimental concentration range. In addition, these AIEE compounds possessed excellent specificity for mitochondrial targeting and mitochondrial morphological change tracking, besides, they displayed superior photostability, which indicated they are potential candidates for mitochondrial imaging.

scholarly journals Pyrene-Fused Hexaarylbenzene Luminogens: Synthesis, Characterization, and Aggregation-Induced Emission Enhancement

2021 ◽  
pp. 109452
Author(s):  
Chuan-Zeng Wang ◽  
Ze-Dong Yu ◽  
Wen-Xuan Zhao ◽  
Kai Yang ◽  
Yuki Noda ◽  
...  
Keyword(s):  
Aggregation Induced Emission ◽  
Emission Enhancement

Schiff base modified α-cyanostilbene derivative with aggregation-induced emission enhancement characteristics for Hg2+ detection

2014 ◽  
Vol 202 ◽  
pp. 209-216 ◽  
Author(s):  
Gaobin Zhang ◽  
Aixiang Ding ◽  
Yao Zhang ◽  
Longmei Yang ◽  
Lin Kong ◽  
...  
Keyword(s):  
Schiff Base ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

Electron donating group stimulated aggregation induced emission enhancement of oligophenylenevinylene-cored luminogens

RSC Advances ◽  
2014 ◽  
Vol 4 (107) ◽  
pp. 62684-62688 ◽  
Author(s):  
Priyabrata Roy ◽  
Debabrata Jana ◽  
Ashis Kundu ◽  
Animesh Pramanik
Keyword(s):  
Aggregation Induced Emission ◽  
Emission Enhancement

Boron Diiminate with Aggregation-Induced Emission and Crystallization-Induced Emission-Enhancement Characteristics

2014 ◽  
Vol 20 (27) ◽  
pp. 8320-8324 ◽  
Author(s):  
Ryousuke Yoshii ◽  
Amane Hirose ◽  
Kazuo Tanaka ◽  
Yoshiki Chujo
Keyword(s):  
Aggregation Induced Emission ◽  
Emission Enhancement
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