carbonyl

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carbonyl

 [kahr´bo-nil]
the divalent organic radical, C=O, characteristic of aldehydes, ketones, carboxylic acid, and esters.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

car·bon·yl

(kar'bŏn-il),
The characteristic group, -C=O-, of the ketones, aldehydes, and organic acids.
Farlex Partner Medical Dictionary © Farlex 2012

car·bon·yl

(kahr'bŏn-il)
The characteristic group, -CO-, of the ketones, aldehydes, and organic acids.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Proteins in muscle foods are prone to oxidation during processing and storage, which leads to loss of amino acids and solubility, changes in texture, formation of carbonyl, alterations in protein functionality and decreased sulfhydryl content [1].
The carbonyl index ([I.sub.CO]), used to characterize the oxidation of LDPE, is defined as the ratio of absorbance of the stretching vibration of carbonyl group (C=O), 1740 [cm.sup.-1] ([A.sub.(1740)]), and the absorbance at 1835 [cm.sup.-1] ([A.sub.(1835)]), used as reference.
Objective: To investigate the potential of carbonyl content as a biomarker for detecting oxidative Deoxyribonucleic acid (DNA) damage induced Antiretroviral Theraphy (ART) toxicity and/or accelerated aging in HIV/AIDS patients.
However, the isomers in low molecular carbonyl compounds such as acetone/propionaldehyde and butanone/butyraldehyde were difficult to analyze by the APCI-MS/MS due to the same molecular mass.
The highest correlation coefficients were found between malondialdehyde and protein carbonyls (r = 0.322), malondialdehyde and ascorbic acid (r = -0.240), followed by protein carbonyls and [alpha]-tocopherol (r = -0.193).
The data showed that an increase of three or four cancer-specific carbonyls was predictive of lung cancer in 95% of patients with a pulmonary nodule or mass.
The G-PS containing the 5 target carbonyls was purchased from Ri Gas Co., (Daejeon, Republic of Korea) containing AA (99.6 ppm), PA (20.1 ppm), BA (18.6 ppm), IV (19.6 ppm), and VA (15.1 ppm).
However, these higher temperatures have the potential to trigger additional thermal breakdowns of the other solvents in the cocktail, producing carbonyls. If users of second-generation e-cigarettes increase the power on their devices while using vaping liquids containing a solvent mix of glycerin and propylene glycol, formaldehyde levels can reach those found in regular tobacco smoke.
In quantifying this altitude related oxidative stress on a molecular level carbonyl proteins (CP) show great promise.
And the aromatic carbonyls form strong halogen bonds with halogens in the crystal to pack the molecules tightly.
Bands grow at 3300-3500 [cm.sup.-1] (hydroxyls) and at 1680-1750 [cm.sup.-1] (carbonyls).
After examining all of the aforementioned 2D NMR spectra, the two carbonyls and methylenes of the ethyl esters could not be assigned and required further 2D NMR characterization.