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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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 formed in...
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
EDTA: Chemistry and Properties01:22

EDTA: Chemistry and Properties

Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...

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Updated: May 26, 2026

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

Copper complexes as therapeutic agents.

Clare Duncan1, Anthony R White

  • 1Centre for Neuroscience & Department of Pathology, The University of Melbourne, Victoria, 3010, Australia.

Metallomics : Integrated Biometal Science
|December 22, 2011
PubMed
Summary
This summary is machine-generated.

Copper complexes show therapeutic potential for various diseases, including cancer and neurodegeneration. Their ability to modulate copper levels and combat oxidative stress highlights their future as effective medicinal agents.

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Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
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Area of Science:

  • Biochemistry
  • Medicinal Chemistry
  • Pharmacology

Background:

  • Transition metals, particularly copper (Cu), are vital in biological systems.
  • Copper's redox capabilities enable its role as a cofactor in numerous enzymes.
  • Imbalances in copper levels are linked to various pathological conditions.

Purpose of the Study:

  • To review the therapeutic and diagnostic potential of inorganic copper complexes.
  • To explore the diverse biological actions of copper complexes.
  • To highlight the future prospects of copper complexes as therapeutic agents.

Main Methods:

  • Literature review of studies investigating copper complexes for therapeutic applications.
  • Analysis of copper complexes' mechanisms of action in different disease models.
  • Evaluation of copper complexes' efficacy in preclinical and clinical settings.

Main Results:

  • Copper complexes demonstrate efficacy in cancer treatment via cytotoxicity.
  • They modulate brain copper homeostasis, offering neuroprotective effects.
  • Copper complexes can alleviate oxidative stress by increasing superoxide dismutase (SOD) activity.

Conclusions:

  • Inorganic copper complexes represent a promising therapeutic strategy for diverse diseases.
  • Their multifaceted actions, including anticancer and neuroprotective effects, underscore their potential.
  • Further research into copper complexes is warranted to fully realize their medicinal applications.