A highly selective and reversible water-soluble polymer based-colorimetric chemosensor for rapid detection of Cu2+ in pure aqueous solution

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 ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18983-18989 ◽  
Author(s):  
Guang Li ◽  
Farong Tao ◽  
Hu Wang ◽  
Liping Wang ◽  
Jiaojiao Zhang ◽  
...  

A novel reversible colorimetric chemosensor based on water-soluble polymer toward Cu2+ ions in pure aqueous solution has been developed.


The Analyst ◽  
2018 ◽  
Vol 143 (22) ◽  
pp. 5395-5403 ◽  
Author(s):  
Guang Li ◽  
Liping Bai ◽  
Farong Tao ◽  
Aixia Deng ◽  
Liping Wang

A dual chemosensor based on rhodamine-terminated PEG was developed for the simultaneous selective detection of Cu2+ and Hg2+ in water.


2017 ◽  
Vol 19 (36) ◽  
pp. 24458-24466 ◽  
Author(s):  
Ji Wang ◽  
Yujun Feng ◽  
Niti R. Agrawal ◽  
Srinivasa R. Raghavan

Rheological behaviors and aqueous solution microstructures of wormlike micelles and a water-soluble polymer are compared.


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+.


2011 ◽  
Vol 347-353 ◽  
pp. 1673-1677
Author(s):  
Rui zhang ◽  
Ni Qin ◽  
Bing Yan Hu ◽  
Zhong Bing Ye

The effects of Na+, Ca2+, and Mg2+ on hydrophobically associating water-soluble polymers (HAWP) were studied in this paper.Their decreased viscosity in aqueous solution at different salt concentrations were measured and the corresponding microstructure by Atomic Force Microscopy (AFM) were determined. The results show that the destructive microstrucure was the intrinsic reason for the decresed viscosity. Among the three salt aqueous solutins, CaCl2 has the highest strong destructive capability to the microstucute of HAWP.


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