A highly selective and sensitive fluorescent chemosensor for detection of CN−, SO32− and Fe3+ based on aggregation-induced emission

2016 ◽  
Vol 4 (2) ◽  
pp. 383-390 ◽  
Author(s):  
Xiaodong Yang ◽  
Xiuli Chen ◽  
Xiaodan Lu ◽  
Chenggong Yan ◽  
Yikai Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Cellular Imaging ◽  
Fluorescent Chemosensor ◽  
Aggregation Induced Emission ◽  
Test Strips

An aggregation-induced emission based sensor that detects CN−, SO32− and Fe3+ in aqueous solution and can be applied in test strips and cellular imaging was designed.

An aggregation-induced emission (AIE) fluorescent chemosensor for the detection of Al(III) in aqueous solution

2019 ◽  
Vol 171 ◽  
pp. 107682 ◽  
Author(s):  
Yuanyuan Li ◽  
Kui Xu ◽  
Yue Si ◽  
Cuiping Yang ◽  
Qiuchen Peng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Chemosensor ◽  
Aggregation Induced Emission

Two new quinoline-based regenerable fluorescent probes with AIE characteristics for selective recognition of Cu2+ in aqueous solution and test strips

The Analyst ◽  
2018 ◽  
Vol 143 (20) ◽  
pp. 4870-4886 ◽  
Author(s):  
Jingwen Xiong ◽  
Zongzhi Li ◽  
Jihua Tan ◽  
Shaomin Ji ◽  
Jianwei Sun ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Quenching ◽  
Fluorescent Probes ◽  
Aqueous Media ◽  
Rapid Analysis ◽  
Selective Recognition ◽  
Quenching Mechanism ◽  
Aggregation Induced Emission ◽  
Test Strips ◽  
Fluorescence Quenching Mechanism

Two novel highly selective quinoline-based fluorescent probes with an aggregation induced emission (AIE) feature are used for rapid analysis of Cu2+ in aqueous media and on paper strips with a fluorescence quenching mechanism.

A New Approach to Fluorescent Chemosensor of Cu2+ Ion

2014 ◽  
Vol 513-517 ◽  
pp. 65-69
Author(s):  
Xiao Jun Hu ◽  
Xin Yan Hu ◽  
Zhi Zhang
Keyword(s):  
Aqueous Solution ◽  
Electron Transfer ◽  
Self Assembly ◽  
Ph Value ◽  
Sodium Dodecyl ◽  
Fluorescence Emission ◽  
Fluorescent Chemosensor ◽  
Dynamic Quenching ◽  
Transfer Effects ◽  
New Approach

According to the principle of dynamic quenching a new ON-OFF fluorescent chemosensor for Cu2+ions was designed, this chemosensor was composed of p-tert-butylthiacalix [arene (TCA),sodium dodecyl sulfate (SDS) and perylene through the form of self-assembly in aqueous solution. Addition of Cu2+ions could result in a quenching of the fluorescence emission of perylene inside micelles, which due to intramicellar complex-fluorophore electron-transfer or energy-transfer effects induced by the complexation of TCA with the Cu2+ions.The experimental results indicated that: Under the condition of TCA/perylene was 800/1, SDS concentration was 150mmol/L and pH value above 9, according to the fluorescence quenching ,within a certain range of the concentration of Cu2+ion can be linearly determined.

Novel chiral aggregation induced emission molecules: self-assembly, circularly polarized luminescence and copper(ii) ion detection

2018 ◽  
Vol 2 (10) ◽  
pp. 1884-1892 ◽  
Author(s):  
Guangxi Huang ◽  
Rongsen Wen ◽  
Zhiming Wang ◽  
Bing Shi Li ◽  
Ben Zhong Tang
Keyword(s):  
Self Assembly ◽  
Fluorescent Chemosensor ◽  
Chiral Molecules ◽  
Ion Detection ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Two novel chiral molecules 1 and 2 were designed and synthesized. 1 displayed evident CPL activity, whereas 2 served as a highly selective and sensitive “turn-off” fluorescent chemosensor for Cu2+.

Cellular membrane-anchored fluorescent probe with aggregation-induced emission characteristics for selective detection of Cu2+ ions

2017 ◽  
Vol 196 ◽  
pp. 377-393 ◽  
Author(s):  
Danni Liu ◽  
Shenglu Ji ◽  
Heran Li ◽  
Liang Hong ◽  
Deling Kong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Cell Membrane ◽  
Water Solubility ◽  
Live Cells ◽  
Probe Design ◽  
Specific Cell ◽  
Selective Detection ◽  
High Concentration ◽  
Aggregation Induced Emission ◽  
Emissive Probes

The exploration of advanced fluorescent probes that can detect divalent copper (Cu2+) in aqueous environments and even in live organisms is particularly valuable for understanding the occurrence and development of Cu2+-related diseases. In this work, we report the design and synthesis of an aggregation-induced emission luminogen (AIEgen)-based probe (TPE-Py-EEGTIGYG) by integrating an AIEgen, TPE-Py, with a peptide, EEGTIGYG, which can selectively detect Cu2+ in both aqueous solution and live cells. Peptide EEGTIGYG has dual functionality in the probe design, namely improving water solubility and providing specific cell membrane-binding ability. TPE-Py-EEGTIGYG can self-assemble into nanoaggregates at high concentration in aqueous solution (e.g., 25 μM), which possess large fluorescence output due to the restriction of intramolecular rotation of the phenyl rings on TPE-Py. The fluorescence of the TPE-Py-EEGTIGYG nanoaggregates can be significantly quenched by Cu2+ but not by other metal ions, achieving the selective detection of Cu2+ in aqueous media. Furthermore, TPE-Py-EEGTIGYG can exist as a molecular species and is very weakly fluorescent in dilute aqueous solution (e.g., 5 μM), but can however largely switch on its fluorescence upon specifically anchoring onto the cell membrane. The emissive probes on the cell membrane can be used for the detection of Cu2+ ions that move in and out of cells with a fluorescence “turn-off” mode.

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