Sequential recognition of zinc ion and hydrogen sulfide by a new quinoline derivative with logic gate behavior

RSC Advances ◽  
2014 ◽  
Vol 4 (35) ◽  
pp. 18270-18277 ◽  
Author(s):  
Zhengping Dong ◽  
Xuanduong Le ◽  
Panpan Zhou ◽  
Chunxu Dong ◽  
Jiantai Ma

A Schiff base-type fluorescent chemosensor L has been synthesized for Zn2+ detection, and the consequent product of L and Zn2+, L–2Zn, is an excellent indicator for H2S for displacement of Zn2+ from the complex L–2Zn.

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+.


RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 101924-101936 ◽  
Author(s):  
Saikat Banerjee ◽  
Paula Brandão ◽  
Amrita Saha

A new azo based chemosensor for detection of Al3+ ion has been reported. The sensor has been well characterized using different techniques like single crystal X-ray, NMR, IR, UV etc. Detection limit of the chemosensor was found to be 6.93 nM.


2014 ◽  
Vol 203 ◽  
pp. 596-601 ◽  
Author(s):  
Yutao Yang ◽  
Caixia Yin ◽  
Fangjun Huo ◽  
Yongbin Zhang ◽  
Jianbin Chao

2011 ◽  
Vol 50 (4) ◽  
pp. 1213-1219 ◽  
Author(s):  
Uday Chand Saha ◽  
Basab Chattopadhyay ◽  
Koushik Dhara ◽  
Sushil Kumar Mandal ◽  
Sandipan Sarkar ◽  
...  

2014 ◽  
Vol 145 ◽  
pp. 486-491 ◽  
Author(s):  
Liyan Zhao ◽  
Xiaoming Chen ◽  
Fang Guo ◽  
Baoquan Gou ◽  
Chao Yang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document