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'G am m a Irradiation' in keywords
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1994 (1)
1979 (1)
1Author    JiřinaK. OpoldováRequires cookie*
 Title    Radiation Aggregates of Insulin  
 Abstract    During the irradiation of aqueous solution of insulin (pH 1.8) the decrease o f original insulin molecules and the formation of radiation aggregates o f insulin was studied in dependence on the concentration of irradiation solution, on the doses and conditions o f irradiation (oxygenated and oxygen-free atmosphere, the presence of ?-butanol, addition o f [14C] amino acids). From the results obtained and results published earlier it may be assumed that in irradiated solution on insulin new covalent bonds between insulin molecules are formed at tyrosyl, phenylalanyl and cystyl radi­ cals; these radicals are formed by the action of both direct and indirect effect (at present pH 1.8 mainly of H atoms). 
  Reference    Z. Naturforsch. 34c, 1139—1143 (1979); received January 22/M ay 4 1979 
  Published    1979 
  Keywords    G am m a-Irradiation, Insulin, Aqueous Solution, R adiation Aggregates 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1139.pdf 
 Identifier    ZNC-1979-34c-1139 
 Volume    34 
2Author    FevziK. Öksal, M. Etin YavuzRequires cookie*
 Abstract    f s o m e I r r a d i a t e d A m m o n i u m C o m p o u n d s G am m a irradiation dam age centres in (N H 4)2SiF6, (N H 4)2SnCl6, (N H 4)2PtC l6, [(CH3)2N H 2]2SnCl6, (N H 4)2PdCl6 and ultraviolet irradiation damage centres in (CH 3)4N C H 3CO O and (C H 3)4N Br have been investigated by electron paramagnetic resonance spectroscopy. It has been found that the radicals produced in (N H 4)2SiF6 and (N H 4)2SnCl6 is N 2H 4 , and those in (N H 4)2P tC l6 are N H 3 and (P tC l6)3 -. In [(CH3)2N H 2]2SnCl6 the species is (C H 3)2N H + , and in (N H 4)2PdC l6 the species is (P dC l6)3 -. Furthermore, it has been shown that the ultraviolet irradia­ tion produces C H 3 and C 0 2 radicals in (C H 3)4N C H 3CO O and C H 3 radical in (C H 3)4NBr. The EPR parameters of the observed radicals have been determined. 
  Reference    Z. Naturforsch. 49a, 1159 (1994); received August 22 1994 
  Published    1994 
  Keywords    EPR, G am m a irradiation, Utraviolet, Ammonium com pounds, Free radicals 
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 TEI-XML for    default:Reihe_A/49/ZNA-1994-49a-1159.pdf 
 Identifier    ZNA-1994-49a-1159 
 Volume    49