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For example, species of Pseudomonas are known to secrete pyochelin and pyoverdine that bind iron. Enterobactin , produced by E. coli , is the strongest chelating agent known. The marine mussels use metal chelation, especially Fe 3+ chelation with the Dopa residues in mussel foot protein-1 to improve the strength of the threads that they use to ...
DOTA is derived from the macrocycle known as cyclen.The four secondary amine groups are modified by replacement of the N-H centers with N-CH 2 CO 2 H groups. The resulting aminopolycarboxylic acid, upon ionization of the carboxylic acid groups, is a high affinity chelating agent for di- and trivalent cations.
The structure of the complex of sodium (Na +) and the antibiotic monensin A Structure of a potassium complex of a crown ether, a synthetic ionophore-ion complex. Biological activities of metal ion-binding compounds can be changed in response to the increment of the metal concentration, and based on the latter compounds can be classified as "metal ionophores", "metal chelators" or "metal ...
DOTA (chelator) derivatives (6 P) S. Sequestrants (1 P) Siderophores (23 P) Pages in category "Chelating agents" The following 164 pages are in this category, out of ...
Chelating resins are a class of ion-exchange resins.They are almost always used to bind cations, and utilize chelating agents covalently attached to a polymer matrix. Chelating resins have the same bead form and polymer matrix as usual ion excha
By altering the properties of the pincer ligands, it is possible to significantly alter the chemistry at the metal centre. Changing the hardness/softness of the donor, using electron-withdrawing groups (EWGs) in the backbone, and the altering the steric constraints of the ligands are all methods used to tune the reactivity at the metal centre.
TPEN (N,N,N ′,N ′-tetrakis(2-pyridinylmethyl)-1,2-ethanediamine [1]) is an intracellular membrane-permeable ion chelator. [2] TPEN has a high affinity for many transition metals and should not be considered specific or selective for a particular ion. Chelators can be used in chelation therapy to remove toxic metals in the body. TPEN is a ...
This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter , as well as the changes it undergoes during chemical reactions ...