Radiolysis of Aqueous Solution of Di- and Trivalent Cobalt-1,2-Diaminocyclohexane-N,N,N′,N′-Tetraacetic Acid Chelates

Hafez, M. B.; Abdel-Rehiem, A. G.

doi:10.1080/10256018508623492

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…This may interpret why inhibition increased when the time after irradiation increased. In accordance to the published articles [10][11][12][13] , the decrease of enzyme activity may be due to the interaction of hydroxyl radical that produced from radiolysis of water with ester center to be separated from enzyme molecule. The produced perroxy acid may continue the same type of reation with ester center causing its inhibition with time.…”

Section: Resultssupporting

confidence: 63%

Effect of Gamma Radiation on Cholinesterase Enzyme

El-Dessouicy

1997

International Conference on Aerospace Sciences and Aviation Tec

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The paper studies the effect of gamma radiation on the activity of cholinesterase enzyme. The results showed that a change in the activity has occurred in the studied absorbed dose range from 10 KGy to 100 KGy. Proposals to interpret the variation of activity of irradiated cholinesterase enzyme in the studied doses are given. Moreover the effect of time after the radiolysis process on the activity of the enzyme is shown. The final conclusion suggests the replacement of gamma irradiation radiotherapy by alpha or beta radiation for local treatment of tumors to reduce the radiation noxious effects on intact cells and enzymes

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Section: Resultssupporting

confidence: 63%

Effect of Gamma Radiation on Cholinesterase Enzyme

El-Dessouicy

1997

International Conference on Aerospace Sciences and Aviation Tec

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Radiolysis of cobalt(III)-1,2 bis(beta-aminoethoxy)ethane N,N,N',N' sodium sulfonate triacetic acid chelate

El-Dessouky¹,

Abdel-Raouf²

1998

J Radioanal Nucl Chem

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Chelation studies of cobalt(III) with 1,2 bis(beta-aminoethoxy)ethane N,N,N',N'sodium sulfonate triacetic acid (ASTA) were performed. The results showed the effectiveness of ASTA as a chelating agent by using: molar ratio, continuous variation and slope ratio methods. Stable complex 1:1 was formed at pH from 6.0 to 10.5. Solutions of Co-ASTA chelate of different molar ratios at pH 6.5 and 8.0 were irradiated by different gamma-radiation doses. The results showed a linear decrease of absorbance with gamma-radiation dose which can be utilized as a dosimeter for low dose rate measurement in the range studied. A proposed radiolytic mechanism is discussed. The degradation of the ASTA ligand has been related to hydroxyl radical attack.

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3. Cobalt

Housecroft¹

1988

Coordination Chemistry Reviews

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Radiolysis of Aqueous Solution of Di- and Trivalent Cobalt-1,2-Diaminocyclohexane-N,N,N′,N′-Tetraacetic Acid Chelates

Cited by 3 publications

References 3 publications

Effect of Gamma Radiation on Cholinesterase Enzyme

Effect of Gamma Radiation on Cholinesterase Enzyme

Radiolysis of cobalt(III)-1,2 bis(beta-aminoethoxy)ethane N,N,N',N' sodium sulfonate triacetic acid chelate

3. Cobalt

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