An efficient water-soluble fluorescent chemosensor based on furan Schiff base functionalized PEG for the sensitive detection of Al3+ in pure aqueous solution

2020 ◽  
Vol 44 (26) ◽  
pp. 11148-11154 ◽  
Author(s):  
Liping Bai ◽  
Yuhang Xu ◽  
Leixuan Li ◽  
Farong Tao ◽  
Shuangshuang Wang ◽  
...  

An efficient reversible fluorescent chemosensor, PEGFB, based on polyethylene glycol bearing a furan Schiff base unit has been successfully developed to sensitively detect Al3+ in pure aqueous solution.

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 573 ◽  
Author(s):  
Liping Bai ◽  
Yuhang Xu ◽  
Guang Li ◽  
Shuhui Tian ◽  
Leixuan Li ◽  
...  

The development of highly selective and sensitive chemosensors for Al3+ detection in pure aqueous solution is still a significant challenge. In this work, a novel water-soluble polymer PEGBAB based on salicylidene Schiff base has been designed and synthesized as a turn-on fluorescent chemosensor for the detection of Al3+ in 100% aqueous solution. PEGBAB exhibited high sensitivity and selectivity to Al3+ over other competitive metal ions with the detection limit as low as 4.05 × 10−9 M. PEGBAB displayed high selectivity to Al3+ in the pH range of 5–10. The fluorescence response of PEGBAB to Al3+ was reversible in the presence of ethylenediaminetetraacetic acid (EDTA). Based on the fluorescence response, an INHIBIT logic gate was constructed with Al3+ and EDTA as two inputs. Moreover, test strips based on PEGBAB were fabricated facilely for convenient on-site detection of Al3+.


2016 ◽  
Vol 40 (5) ◽  
pp. 4513-4518 ◽  
Author(s):  
Guang Li ◽  
Farong Tao ◽  
Qian Liu ◽  
Liping Wang ◽  
Zhuang Wei ◽  
...  

A novel reversible colorimetric chemosensor based on polyethylene glycol has been developed to detect Cu2+ ions in pure aqueous solution.


RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 47000-47004 ◽  
Author(s):  
Yaping Yang ◽  
Xin-Long Ni ◽  
Tao Sun ◽  
Hang Cong ◽  
Gang Wei

A sensitive and selective method for the determination of Hg2+ cations by fluorescence enhancement in pure aqueous solution was developed and obtained by simple organic synthesis.


2017 ◽  
Vol 41 (9) ◽  
pp. 3303-3307 ◽  
Author(s):  
You-Ming Zhang ◽  
Kai-Peng Zhong ◽  
Jun-Xia Su ◽  
Xiao-Peng Chen ◽  
Hong Yao ◽  
...  

A novel water soluble fluorescent sensor was synthesized by employing the carboxyl and imidazolyl moiety as the hydrophilic group site and Hg2+ binding site, whereas a naphthalimide moiety was used as the signal group.


Author(s):  
Guodong Feng ◽  
Hongyu Mi ◽  
Qiang Fei ◽  
Hongyan Shan ◽  
Baojun Wang ◽  
...  

2014 ◽  
Vol 6 (11) ◽  
pp. 3560-3563 ◽  
Author(s):  
Kai Wu ◽  
Yuting Gao ◽  
Zhenni Yu ◽  
Fangqi Yu ◽  
Juhua Jiang ◽  
...  

A facile naphthalene-based Schiff base chemosensor, 1-((pyridin-2-ylmethylimino)methyl)naphthalen-2-ol, has been designed and synthesized for selective detection of Zn2+ions.


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