chelate

(redirected from chelating)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to chelating: Chelating agent

chelate

 [ke´lāt]
1. to combine with a metal in complexes in which the metal is part of a ring.
2. by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecule. Chelates are used in chemotherapy of metal poisoning.

che·late

(kē'lāt),
1. To effect chelation.
2. Pertaining to chelation.
3. A complex formed through chelation.

chelate

/che·late/ (ke´lāt)
1. to combine with a metal in complexes in which the metal is part of a ring.
2. by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecules. Chelates are used in chemotherapy of metal poisoning.

chelate

(kē′lāt′)
adj. Zoology
Having chelae or resembling a chela.
n. Chemistry
A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions.
tr.v. che·lated, che·lating, che·lates
1. Chemistry To combine (a metal ion) with a chemical compound to form a ring.
2. Medicine To remove (a heavy metal, such as lead or mercury) from the bloodstream by means of a chelate, such as EDTA.

che′lat·a·ble adj.
che·la′tion n.
che′la′tor n.

chelate

[kē′lāt]
Etymology: Gk, chele, claw
1 v, to form a bond, thus creating a ringlike complex. An example is the interaction of a metal ion and two or more polar groups of a single molecule.
2 n, (in medicine) any coordination compound composed of a central metal ion and an organic molecule with multiple bonds arranged in ring formations, used especially in chemotherapeutic treatments for metal poisoning.
3 adj, pertaining to chelation.

che·late

(kē'lāt)
1. To effect chelation.
2. Pertaining to chelation.
3. A complex formed through chelation.

chelate

  1. possessing claws or pincer-like appendages.
  2. to combine with a metal ion to form a stable compound.

Chelate

A chemical that binds to heavy metals in the blood, thereby helping the body to excrete them in urine.
Mentioned in: Nephrotoxic Injury

chelate

to combine with a metal in complexes in which the metal is part of a ring; by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecule. Chelates are used in treatment of metal poisoning.
References in periodicals archive ?
Table 23: Canadian Historic Review for Chelating Agents by
The expanded capacities for chelating agents at our Ludwigshafen site enable us to respond to the increasing demand in Europe.
While demand for chelating agents rises strongly in emerging countries, saturated markets in Western Europe and North America will only grow slightly over the next years.
The contract is the acquisition of "iron chelating agent for the treatment of thalassemia.
To make sure plants take up sufficient quantities of the micronutrients they need, growers use fertilizers formulated with chelating agents.
Chelating agents, or chelants, are ligands that interact strongly with metals and so are used in a wide array of applications.
Research was conducted by numerous groups to find a way to make chelator-induced in situ phytoextraction effective and safe in the environment, but the added chelating agents caused unavoidable leaching of chelated metals down the soil profile (Chaney et al.
Antioxidants can interfere with the oxidation process by scavenging free radicals, chelating catalytic metals and by acting as oxygen scavengers (Frankel and Meyer 2000, Shahidi and Wanasundara 1992).
Chelating gels are employed by dentists for the removal of smear layer and debris from inside the root canal.
This allows for the commercialisation of an environmentally friendly and readily biogradeable chelating agent.
In a study last year, the researchers even reported that chelating agents, which trap and remove metals from tissues, dissolve beta-amyloid in brain tissue taken from people who had died of Alzheimer's disease.
This report analyzes the worldwide markets for Chelating Agents in Metric Tons by the following End-Use Applications: Household and Industrial Cleaners, Waste Water Treatment, Paper & Pulp Processing, and Other Applications.