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A high affinity and selective DNA aptamer for copper ions

Jin Wang1,2, Yibo Liu2, Xiangmei Li1

  • 1Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China. hongtao@scau.edu.cn.

Chemical Communications (Cambridge, England)
|November 14, 2024
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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