EDTA


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Related to EDTA: disodium EDTA

chelating agents

chelating agents (kēˈlātĭng). Certain organic compounds are capable of forming coordinate bonds (see chemical bond) with metals through two or more atoms of the organic compound; such organic compounds are called chelating agents. The compound formed by a chelating agent and a metal is called a chelate. A chelating agent that has two coordinating atoms is called bidentate; one that has three, tridentate; and so on. EDTA, or ethylenediaminetetraacetate, (−O2CH2)2NCH2CH2N(CH2CO2−)2, is a common hexadentate chelating agent. Chlorophyll is a chelate that consists of a magnesium ion joined with a complex chelating agent; heme, part of the hemoglobin in blood, is an iron chelate. Chelating agents are important in textile dyeing, water softening, and enzyme deactivation and as bacteriocides.
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EDTA

(organic chemistry)
ethylenediaminetetraacetic acid
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
The following reagents were used in the work: U[O.sub.2][(S[O.sub.4]).sub.2]*3[H.sub.2]O, CuS[O.sub.4]*5[H.sub.2]O, Pb[(N[O.sub.3]).sub.2], NiS[O.sub.4]*7[H.sub.2]O, CoS[O.sub.4]*7[H.sub.2]O, [K.sub.2] Cr[O.sub.4], EDTA, HMDTA, and DTPA.
Layered double hydroxides as effective adsorbents for U(VI) and toxic heavy metals removal from aqueous media
coli with EDTA caused a 50% release of outer membrane polysaccharides (Wooley and Jones 1983) that leads to the leakage of solutes from the periplasmic space.
Synergistic interactions in two-drug and three-drug combinations (thymol, EDTA and vancomycin) against multi drug resistant bacteria including E. coli
Ayce Unverdi Eldeniz et al claimed that irrigation of the root canals with EDTA and NaOCl solutions reduced the micro hardness and increased the roughness of root canal dentin.
Evaluation of efficacy of the smear layer removal and micro hardness of root dentin after using different irrigants--an in vitro study
For Cd and Cr solubilisation was carried out to a little extent; however DTPA managed to cause significant chelation of Cu relative to EDTA chelation.
Chelating Impact Assessment of Biological and Chemical Chelates on Metal Extraction from Contaminated Soils
EDTA caused a significant increase of the imipenem and meropenem inhibition zone, not only for MBL producers, but also for the CHDL positive isolates.
FALSE POSITIVE PHENOTYPIC DETECTION OF METALLO-BETA-LACTAMASES IN ACINETOBACTER BAUMANNII
A questionnaire was distributed by hand to dentists in the 6 hospitals of Rawalpindi/ Islamabad which consisted of a set of 7 questions regarding their preferred choice of irrigant as a dentist, the ones that they are using in hospital settings, whether they work in private clinics and hospital both, the reasons for not using NaOCL and EDTA and the most common method of irrigation they are using to clean and disinfect canals in the hospital and what to their knowledge is the best method of irrigation.
A SURVEY ABOUT THE MOST COMMON IRRIGANT AND MOST COMMON METHOD OF IRRIGANT USAGE BY DENTISTS IN RAWALPINDI/ISLAMABAD HOSPITALS
In as little as one day after the venipuncture, the sample collected in EDTA and kept at room temperature began to show significant degenerative changes in leukocyte and erythrocyte morphology.
EDTA in transit: degenerative changes in blood cell morphology
in EDTA (Ethylenediaminetetraacetate), anticoagulated sample.
Comparison of role of alternative anticoagulant (MGS[O.sub.4]) in EDTA-induced pseudothrombocytopenia
It was noted that this was the largest study to date of high-dose vitamin therapy, and the vitamins played a role in clinical improvement when combined with EDTA. No reports of significant adverse effects were found in the study.
Impact of TACT on conventional cardiovascular therapy
Por ejemplo, Wu y colaboradores comprobaron que la capacidad de eliminacion de la capa de barrillo con EDTA al 17 %, era mayor que con acido citrico al 20 % y MTAD (BioPure[R], una mezcla de isonomero de tetraciclina-- doxiciclina--, acido citrico y detergente).
Cambios histomorfometricos en dentina al utilizar biomodificadores radiculares. Revision sistematica

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