Efficient sensing of fluoride ions in water using a novel water soluble self-assembled supramolecular sensor based on pillar[5]arene

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 111928-111933 ◽  
Author(s):  
Qi Lin ◽  
Feng Zheng ◽  
Lu Liu ◽  
Peng-Peng Mao ◽  
You-Ming Zhang ◽  
...  

By rationally introducing competitive coordination, the supramolecular sensors could reversibly sense Fe3+ and F− in water with high selectivity and sensitivity.

2018 ◽  
Vol 42 (12) ◽  
pp. 10148-10152 ◽  
Author(s):  
You-Ming Zhang ◽  
Xiao-Peng Chen ◽  
Guo-Yan Liang ◽  
Kai-Peng Zhong ◽  
Qi Lin ◽  
...  

A bifunctional supramolecular pseudorotaxane chemosensor (G-WAP) based on pillar[5]arene and phenazine imidazole was constructed, which could detect Hg2+ and Ag+ in water.


2021 ◽  
Author(s):  
Monojit Das ◽  
Debdeep Maity ◽  
Tusar Kanta Acharya ◽  
Sudip Sau ◽  
Chandan Giri ◽  
...  

A water-soluble PET-based chemosensor is developed which can detect Al(iii) and F− ions up to nano- and picomolar (lowest detection so far) detection limit, respectively, also utilized to establish aluminum-toxicity effect in biological systems.


2018 ◽  
Vol 96 (4) ◽  
pp. 363-370 ◽  
Author(s):  
You-Ming Zhang ◽  
Xiao-Peng Chen ◽  
Guo-Yan Liang ◽  
Kai-Peng Zhong ◽  
Hong Yao ◽  
...  

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.


2019 ◽  
Vol 43 (34) ◽  
pp. 13690-13695
Author(s):  
Dae Hyup Sohn ◽  
Nayeon Kim ◽  
Soonmin Jang ◽  
Jongmin Kang

The dimeric receptor 1 from 1,2-phenylenediacetic acid and calcium ions recognized fluoride ions almost exclusively in 100% water.


2018 ◽  
Vol 42 (24) ◽  
pp. 19450-19457 ◽  
Author(s):  
Nannan Jian ◽  
Kaiwen Lin ◽  
Bin Guo ◽  
Ge Zhang ◽  
Ximei Liu ◽  
...  

Electrosynthesized oligo(1-pyrenesulfonic acid) displays high selectivity, low detection limit and outstanding reversibility in the detection of Fe3+ in aqueous solution.


2018 ◽  
Vol 10 (446) ◽  
pp. eaau0472 ◽  
Author(s):  
Keyue Shen

A nanocarrier system self-assembled in the intestine significantly improves oral availability of poorly water-soluble drugs.


2019 ◽  
Vol 29 (5) ◽  
pp. 685-687 ◽  
Author(s):  
Wei-Guang Shan ◽  
Han-Guang Wang ◽  
Rui Wu ◽  
Zha-Jun Zhan ◽  
Lie-Feng Ma

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6869-6878 ◽  
Author(s):  
Li Wenfeng ◽  
Ma Hengchang ◽  
Lu con ◽  
Ma Yuan ◽  
Qi Chunxuan ◽  
...  

Triphenylamine-based fluorescent chemosensor m-TAPA (S) shows high selectivity and sensitivity toward Fe3+/Cu2+ in natural and drinking water. Additionally, the TCL strips serve as a simple method for detection of Fe3+/Cu2+ at the nanomolar range.


2016 ◽  
Vol 18 (25) ◽  
pp. 16629-16640 ◽  
Author(s):  
Hugh D. Burrows ◽  
Telma Costa ◽  
M. Luisa Ramos ◽  
Artur J. M. Valente ◽  
Beverly Stewart ◽  
...  

Self-assembled fluorescent systems with potential in sensing and light harvesting are formed by mixing 8-hydroxyquinoline-5-sulfonate, metal ions and cationic conjugated electrolytes in aqueous solutions.


2014 ◽  
Vol 50 (97) ◽  
pp. 15301-15304 ◽  
Author(s):  
Shigang Wan ◽  
Li-Rong Lin ◽  
Lili Zeng ◽  
Yiji Lin ◽  
Hui Zhang

Self-assembled tetrahedral M4L6 cages were successfully resolved into their ΔΔΔΔ and ΛΛΛΛ enantiomers by (R)-/(S)-1,1′-bi-2-naphthol.


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