Stability of Glycine in Saline Solutions Exposed to Ionizing Radiation

Authors

  • Laura Patricia Cruz-Cruz Sciences Faculty, National Autonomous University of Mexico (UNAM), Mexico City-04520, Mexico
  • Alicia Negron-Mendoza Department of Radiation Chemistry and Radio chemistry, Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), Mexico City-04520, Mexico
  • Alejandro Heredia-Barbero Department of Radiation Chemistry and Radio chemistry, Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), Mexico City-04520, Mexico

DOI:

https://doi.org/10.15415/jnp.2020.72009

Keywords:

Chemical evolution, Glycine, Saline water, Ionizing radiation

Abstract

The stability of biologically important molecules, such as amino acids, being subjected to highradiation fields is relevant for chemical evolution studies. Bodies of water were very important in the primitive Earth. In these bodies, the presence of dissolved salts, together with organic molecules, could influence the behavior of the systems in prebiotic environments.
The objective of this work is to examine the influence of sodium chloride on the stability of the amino acid glycine when subjected to high radiation doses. The analysis of the irradiated samples was followed by HPLC coupled with a UV-VIS detector. The results show that glycine in aqueous solutions (without oxygen) decomposed around 90% at a dose of 91 kGy. In the presence of salts, up to 80% of the amino acid was recovered at the same dose. Laboratory simulations demonstrate a protective role for sodium chloride (specifically the chloride ion) to glycine against an external source of ionizing radiation.

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References

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Published

2020-02-28

How to Cite

(1)
Cruz-Cruz, L. P. .; Negron-Mendoza, A. .; Heredia-Barbero, A. . Stability of Glycine in Saline Solutions Exposed to Ionizing Radiation. J. Nucl. Phy. Mat. Sci. Rad. A. 2020, 7, 83-87.

Issue

Vol. 7 No. 2 (2020)

Section

Articles

License

Articles in Journal of Nuclear Physics, Material Sciences, Radiation and Applications (J. Nucl. Phy. Mat. Sci. Rad. A.) by Chitkara University Publications are Open Access articles that are published with licensed under a Creative Commons Attribution- CC-BY 4.0 International License. Based on a work at http://jnp.chitkara.edu.in. This license permits one to use, remix, tweak and reproduction in any medium, even commercially provided one give credit for the original creation.

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Creative Commons License Journal of Nuclear Physics, Material Sciences, Radiation and Applications by Chitkara University Publications is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at https://jnp.chitkara.edu.in/

 

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