Fluorescence quenching of water-soluble conjugated polymer by metal cations and its application in sensor

2007 ◽  
Vol 66 (2) ◽  
pp. 448-452 ◽  
Author(s):  
Yan-Guo Chen ◽  
Dan Zhao ◽  
Zhi-Ke He ◽  
Xin-Ping Ai
Keyword(s):  
Fluorescence Quenching ◽  
Conjugated Polymer ◽  
Metal Cations ◽  
Water Soluble

Enhancing Insulated Conjugated Polymer Fluorescence Quenching by Incorporating Dithia[3.3]paracyclophanes

2021 ◽  
Vol 54 (7) ◽  
pp. 3112-3119
Author(s):  
Ryan Lillis ◽  
Maximillian R. Thomas ◽  
Manikandan Mohanan ◽  
Nagarjuna Gavvalapalli
Keyword(s):  
Fluorescence Quenching ◽  
Conjugated Polymer

Novel Water-Soluble Cyclodextrin-Based Conjugated Polymer for Selective Host–Guest Interactions of Cationic Surfactant CTAB and Reverse FRET with Rhodamine B Tagged Adamantyl Guest

2016 ◽  
Vol 49 (15) ◽  
pp. 5587-5598 ◽  
Author(s):  
Atul Kumar Dwivedi ◽  
Ravinder Singh ◽  
Ashutosh Singh ◽  
Kung-Hwa Wei ◽  
Chu-Ya Wu ◽  
...  
Keyword(s):  
Cationic Surfactant ◽  
Rhodamine B ◽  
Conjugated Polymer ◽  
Water Soluble

Radical Scavenging Mediating Reversible Fluorescence Quenching of an Anionic Conjugated Polymer:  Highly Sensitive Probe for Antioxidants

2006 ◽  
Vol 18 (16) ◽  
pp. 3605-3610 ◽  
Author(s):  
Yanli Tang ◽  
Fang He ◽  
Minghui Yu ◽  
Shu Wang ◽  
Yuliang Li ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Conjugated Polymer ◽  
Radical Scavenging ◽  
Highly Sensitive

scholarly journals A water-soluble fluorescent chemosensor based on Asp functionalized naphthalimide for successive detection Fe3+ and H2PO4−

2018 ◽  
Vol 96 (4) ◽  
pp. 363-370 ◽  
Author(s):  
You-Ming Zhang ◽  
Xiao-Peng Chen ◽  
Guo-Yan Liang ◽  
Kai-Peng Zhong ◽  
Hong Yao ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Metal Ions ◽  
Aspartic Acid ◽  
High Selectivity ◽  
Fluorescent Sensor ◽  
Water Solution ◽  
Water Soluble ◽  
Selective Recognition ◽  
Actual Usage ◽  
Quenching Process

The selective recognition of target ions in water is very important and the development of novel water-soluble chemosensor is still an intriguing challenge. Herein, a novel water-soluble fluorescent sensor based on aspartic acid (Asp) functionalized 1,8-naphthalimide derivative (Asp-NI) has been designed and synthesized. The sensor Asp-NI could dissolve in water and successively detect Fe3+ and H2PO4− in water solution with high selectivity and sensitivity. The detection limits are 4.97 × 10−7 mol/L for Fe3+ and 5.27 × 10−6 mol/L for H2PO4−. Other coexistent competitive metal ions (Hg2+, Ag+, Ca2+, Cu2+, Co2+, Ni2+, Cd2+, Pb2+, Zn2+, Cr3+, and Mg2+) showed no interference in the Fe3+ detection process. The sensor Asp-NI could act as a Fe3+ and H2PO4− controlled “On–Off–On” fluorescent switch. More interestingly, the Fe3+ induced fluorescence quenching process could be totally reversed by the addition of H2PO4−, this “On–Off–On” switching process could be repeated several times with little fluorescence loss. Notably, the actual usage of sensor Asp-NI was further demonstrated by test kits.

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