Adsorption of copper ions from aqueous media using montmorillonite-Al2O3 nano-adsorbent incorporated with Fe3O4 for facile separation

A magnetic nano-adsorbent was synthesized via the radical polymerization of methyl acrylate on modified Fe3O4 MNPs, followed by amidation of the methyl ester groups using pentaethylenehexamine, to create active sites for adsorption of anionic dyes.

Download Full-text

A colorimetric and fluorescent chemosensor for copper ions in aqueous media and its application in living cells

New Journal of Chemistry ◽

10.1039/c0nj00168f ◽

2010 ◽

Vol 34 (7) ◽

pp. 1239 ◽

Cited By ~ 68

Author(s):

Huan-Huan Wang ◽

Lin Xue ◽

Zhang-Jian Fang ◽

Guo-Ping Li ◽

Hua Jiang

Keyword(s):

Copper Ions ◽

Aqueous Media ◽

Living Cells ◽

Fluorescent Chemosensor

Download Full-text

Real-Time Probe for the Efficient Sensing of Inorganic Fluoride and Copper Ions in Aqueous Media

ChemistrySelect ◽

10.1002/slct.201802411 ◽

2018 ◽

Vol 3 (41) ◽

pp. 11593-11600 ◽

Cited By ~ 7

Author(s):

Pravin Patil ◽

Kanalli V. Ajeya ◽

Mahesh P. Bhat ◽

Ganesan Sriram ◽

Jingxian Yu ◽

...

Keyword(s):

Real Time ◽

Copper Ions ◽

Aqueous Media ◽

Inorganic Fluoride

Download Full-text

l-Cysteine-Modified Gold Nanostars for SERS-Based Copper Ions Detection in Aqueous Media

Langmuir ◽

10.1021/la503553y ◽

2014 ◽

Vol 30 (44) ◽

pp. 13491-13497 ◽

Cited By ~ 40

Author(s):

Pancras Ndokoye ◽

Jun Ke ◽

Jie Liu ◽

Qidong Zhao ◽

Xinyong Li

Keyword(s):

Copper Ions ◽

Aqueous Media ◽

Gold Nanostars

Download Full-text

Rapid removal of copper ions from aqueous media by hollow polymer nanoparticles

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2019.02.033 ◽

2019 ◽

Vol 568 ◽

pp. 345-355 ◽

Cited By ~ 5

Author(s):

Xiaopei Li ◽

Gang Deng ◽

Yongjie Zhang ◽

Jihui Wang

Keyword(s):

Copper Ions ◽

Aqueous Media ◽

Polymer Nanoparticles ◽

Rapid Removal

Download Full-text

Simple quinoline-based “turn-on” fluorescent sensor for imaging copper (II) in living cells

Canadian Journal of Chemistry ◽

10.1139/cjc-2014-0011 ◽

2014 ◽

Vol 92 (11) ◽

pp. 1092-1097 ◽

Cited By ~ 10

Author(s):

Chen Zhou ◽

Ning Xiao ◽

Yapeng Li

Keyword(s):

Density Functional ◽

Copper Ions ◽

Fluorescent Sensor ◽

Aqueous Media ◽

Density Functional Theory Calculations ◽

Quinoline Derivative ◽

Electron Transfer Mechanism ◽

Organic Chromophores ◽

Turn On ◽

Fluorescence Turn On

In this work, a novel fluorescent sensor based on a quinoline derivative was designed and synthesized for detecting copper ions in a near-aqueous media. According to its extra-nuclear structure, copper (II) normally exhibits effectiveness for quenching the singlet excited state of organic chromophores through a fast electron transfer mechanism. However, this molecule displayed a strong fluorescence “turn-on” phenomenon upon addition of Cu2+, which was rarely reported in previous research. In addition, density functional theory calculations were adopted to investigate the molecular orbitals as well as the spatial structure. Furthermore, this sensor was applied into living SGC-7901 cells to extend its application in biological systems.

Download Full-text

Fast removal of copper ions by gum arabic modified magnetic nano-adsorbent

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2007.01.079 ◽

2007 ◽

Vol 147 (3) ◽

pp. 792-799 ◽

Cited By ~ 357

Author(s):

Shashwat S. Banerjee ◽

Dong-Hwang Chen

Keyword(s):

Copper Ions ◽

Gum Arabic ◽

Fast Removal ◽

Nano Adsorbent

Download Full-text

Contribution of copper binding to the inhibition of lipid oxidation by plasmalogen phospholipids

Biochemical Journal ◽

10.1042/bj3400377 ◽

1999 ◽

Vol 340 (2) ◽

pp. 377-383 ◽

Cited By ~ 16

Author(s):

Daniela HAHNEL ◽

Thomas HUBER ◽

Volker KURZE ◽

Klaus BEYER ◽

Bernd ENGELMANN

Keyword(s):

Lipid Oxidation ◽

Copper Ions ◽

Aqueous Media ◽

Oxidative Degradation ◽

Direct Interaction ◽

Molar Ratio ◽

Protective Effects ◽

Copper Binding ◽

Enol Ether

The role of plasmalogen phospholipids for copper-induced lipid oxidation was evaluated. Using 1H-NMR we observed that the copper (CuSO4)-promoted oxidative degradation of polyunsaturated fatty acids in micellar solution was dose-dependently attenuated by the plasmalogen lysoplasmenylethanolamine from bovine brain (lysoBP-PtdEtn). This was due to a direct interaction of copper ions with the plasmalogen-specific enol ether double bond. The enol ether methine 1H signal decreased on the addition of copper, saturation being reached at a molar ratio of lysoBP-PtdEtn to copper of 1:1. The original 1H signal was recovered almost completely after the addition of EDTA. Enrichment of micelles and low-density lipoproteins (LDLs) with plasmalogen phospholipids led to a decrease in the Cu(II) concentration in the aqueous media. After loading of LDLs in vitro with BP-PtdEtn, the LDL-dependent formation of Cu(I) was decreased, in particular in particles experimentally supplemented with α-tocopherol. The suppression of copper-promoted lipid oxidation that was observed in the presence of plasmalogen phospholipids plus α-tocopherol was greater than the sum of the protective effects elicited by the two substances alone. In conclusion, the formation of a complex between copper ions and the plasmalogens accounts partly for their inhibition of copper-induced lipid oxidation.

Download Full-text