ESIPT based Hg2+and fluoride chemosensor for sensitive and selective ‘turn on’ red signal and cell imaging

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5735-5740 ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Sibaprasad Maity ◽  
Annada C. Maity ◽  
Avijit kumar Das ◽  
Bholanath Pakhira ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Cell Imaging ◽  
Fluorescent Sensor ◽  
Intramolecular Proton Transfer ◽  
Turn On

An excited state intramolecular proton transfer (ESIPT) enabled fluorescent sensor phenanthroline diimino phenol (PDP) for Hg2+and F−has been designed and synthesized.

A reactive probe for Cu2+ based on the ESIPT mechanism and its application in live-cell imaging

2015 ◽  
Vol 7 (8) ◽  
pp. 3327-3330 ◽  
Author(s):  
Chengyu Yang ◽  
Yu Chen ◽  
Kai Wu ◽  
Tin Wei ◽  
Jinglu Wang ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Intramolecular Proton Transfer ◽  
Live Cell ◽  
Sensitive Detection ◽  
Hydrolysis Reaction ◽  
Turn On ◽  
Fluorescence Turn On

A new excited-state intramolecular proton transfer (ESIPT) based fluorescence “turn-on” chemodosimeter for selective and sensitive detection of Cu2+ by the copper-induced hydrolysis reaction has been reported.

A simple excited-state intramolecular proton transfer probe based on a new strategy of thiol–azide reaction for the selective sensing of cysteine and glutathione

2016 ◽  
Vol 52 (4) ◽  
pp. 749-752 ◽  
Author(s):  
Dan Zhang ◽  
Zihao Yang ◽  
Hongjuan Li ◽  
Zhichao Pei ◽  
Shiguo Sun ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Nucleophilic Substitution ◽  
Fluorescent Sensor ◽  
Intramolecular Proton Transfer ◽  
Turn On ◽  
New Strategy ◽  
Rearrangement Reactions

A simple azido-substituted fluorescent sensorAHBObased on the mechanism of nucleophilic substitution–rearrangement reactions showed selective turn-on response to cysteine (Cys) and glutathione (GSH).

A water soluble ESIPT-based fluorescent chemodosimeter for the ratiometric detection of palladium ions in aqueous solution and its application in live-cell imaging

2018 ◽  
Vol 42 (19) ◽  
pp. 15587-15592 ◽  
Author(s):  
Jing Huang ◽  
Yu Ding ◽  
Hongyu Fu ◽  
Bo Chen ◽  
Yifeng Han
Keyword(s):  
Aqueous Solution ◽  
Excited State ◽  
Proton Transfer ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Intramolecular Proton Transfer ◽  
Live Cell ◽  
Water Soluble ◽  
Ratiometric Detection ◽  
Fluorescent Chemodosimeter

A new Excited State Intramolecular Proton Transfer (ESIPT) based water-soluble fluorescent chemodosimeter for the ratiometric detection of palladium ions has been rationally designed and developed.

Design and application of a fluorescent probe based on ESIPT mechanism for the detection of Cys with o-hydroxyacetophenone structure

2019 ◽  
Vol 11 (19) ◽  
pp. 2513-2517 ◽  
Author(s):  
Cuiyan Han ◽  
Bo Song ◽  
Xin Liang ◽  
Hong Pan ◽  
Wei Dong
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Fluorescent Probe ◽  
Quantitative Measurement ◽  
Cell Imaging ◽  
Intramolecular Proton Transfer ◽  
Design And Application

In this paper, a novel fluorescent probe DHOA based on excited-state intramolecular proton transfer (ESIPT) principle was designed, prepared, and then applied to quantitative measurement and cell imaging of cysteine (Cys).

Fluorescence turn-on detection of cysteine over homocysteine and glutathione based on “ESIPT” and “AIE”

2015 ◽  
Vol 7 (12) ◽  
pp. 5028-5033 ◽  
Author(s):  
Hualong Liu ◽  
Xiaoyan Wang ◽  
Yu Xiang ◽  
Aijun Tong
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Turn On ◽  
Fluorescence Turn On

A turn-on detection of cysteine (Cys) based on excited-state intramolecular proton transfer and aggregation-induced emission properties of a salicylaldehyde azine derivative has been established.

scholarly journals A selective NIR-emitting zinc sensor by using Schiff base binding to turn-on excited-state intramolecular proton transfer

2014 ◽  
Vol 2 (14) ◽  
pp. 2008 ◽  
Author(s):  
Junfeng Wang ◽  
Yingbo Li ◽  
Ernest Duah ◽  
Sailaja Paruchuri ◽  
Demin Zhou ◽  
...  
Keyword(s):  
Schiff Base ◽  
Excited State ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Zinc Sensor ◽  
Turn On

Aggregation induced enhanced and exclusively highly Stokes shifted emission from an excited state intramolecular proton transfer exhibiting molecule

2017 ◽  
Vol 196 ◽  
pp. 71-90 ◽  
Author(s):  
Santosh Kumar Behera ◽  
Anwesha Murkherjee ◽  
G. Sadhuragiri ◽  
Palani Elumalai ◽  
M. Sathiyendiran ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Cell Imaging ◽  
Inner Filter Effect ◽  
Intramolecular Proton Transfer ◽  
Additional Advantage ◽  
Filter Effect ◽  
Emission Enhancement ◽  
Butyl Phenol ◽  
Tetrahydrofuran Solution

The inner filter effect due to self-quenching dominates the normal emission of dyes at higher concentrations, which would limit their applications. Since normal emission was also observed with aggregation induced emission enhancement (AIEE) active excited state intramolecular proton transfer (ESIPT) exhibiting molecules, two new molecules are synthesized and studied to obtain normal emission free AIEE. The molecules are 4-(3-(benzo[d]thiazol-2-yl)-5-tert-butyl-4-hydroxybenzyl)-2-(benzo[d]thiazol-2-yl)-6-tert-butyl phenol (bis-HPBT) and its oxazole analogue (bis-HPBO). Of these molecules, bis-HPBT, which is weakly fluorescent in tetrahydrofuran solution, shows a sudden high enhancement in fluorescence upon addition of 70% water due to the formation of aggregates. Though the normal emission is also observed in tetrahydrofuran, it is completely eliminated in the aggregates, and the aggregates display exclusive tautomer emission. However, bis-HPBO does not emit such an exclusive tautomer emission in the water/tetrahydrofuran mixture. The enhancement in the fluorescence quantum yield of bis-HPBT in 70% water is ∼300 times higher than that in tetrahydrofuran. The modulated molecular structure of bis-HPBT is the cause of this outstanding AIEE. The observation of almost exclusive tautomer emission is a new additional advantage of AIEE from bis-HPBT over other ESIPT molecules. Since the tautomer emission is highly Stokes shifted, no overlap with the absorption spectrum occurs and therefore, the inner filter effect is averted. The aggregated structure acts as a good fluorescence chemosensor for metal ions as well as anions. The aggregated structure is cell permeable and can be used for cell imaging.

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