June 20, 2022

Amino acids generated from hydrated Titan tholins: Comparison with Miller–Urey electric discharge products

Authors: H.J. Cleaves II, C. Neish, M.P. Callahan, E. Parker, F.M. Fernández, J.P. Dworkin Various analogues of Titan haze particles (termed ‘tholins’) have been made in the laboratory. In certain geologic environments on Titan, these haze particles may come into contact with aqueous ammonia (NH3) solutions, hydrolyzing them into molecules of astrobiological interest. A Titan tholin analogue hydrolyzed in aqueous…

zach Uncategorized 0 1 min read
June 20, 2022

Nitrogen compounds’ formation in aqueous solutions under high ionizing radiation: An overview

Authors: G.R. Dey Generation of NO-3 and NO-2 in aqueous phase within high ionizing radiation zone is normal phenomena. Their formation mechanisms, and controls still remain a challenge with reference to creation of corrosive environment. Nitrogen in such system relates mainly to air ingress, and from added nitrogen compounds, which are used to control pH and dissolved oxygen. Under radiation…

zach Uncategorized 0 42 sec read
June 20, 2022

The Gamma Irradiation of Aqueous Solutions of Urea. Implications for Chemical Evolution

Authors: R. Navarro-González, A. Negrón-Mendoza, E. Chacón 0.05moledm-3,Oz-free aqueous solutions of urea were studies after receiving various doses of 6°Co gamma rays(0.14-600kGy). Urea was found to be relatively stable under radiation; its radiation chemical yield of decomposition was 0.47. Hydrogen (G=0.50), carbon dioxide (G=0.44), ammonia (G=0.22), oxalic acid (G=0.0054), malonic acid (G=0.000064)and three unidentified oligomers were found to be the…

zach Uncategorized 0 25 sec read
June 20, 2022

Cyanoacetylene in Prebiotic Synthesis

Authors: R. A. Sanchez, J. P. Ferris, L. E. Orgel Cyanoacetylene is a major nitrogen-containing product of the action of an electric discharge on a mixture of methane and nitrogen. It reacts with simple inorganic substances in aqueous solution to give products including aspartic acid, asparagine, and cytosine. 10.1126/science.154.3750.784

zach Uncategorized 0 13 sec read

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