A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry

Details A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996oleb...26...75m&link_type=abstract

Origins of Life and Evolution of the Biosphere, Volume 26, Issue 1, pp.75-94

Mathematics

Logic

3

Scientific paper

This paper describes the possible effects of ionizing radiation arising from long-lived soluble radionuclides within clays, in particular40K, at the epoch of the emergence of life on Earth. The free dispersion of soluble radionuclides constitutes an effectivein situ irradiation mechanism that might have acted upon adsorbed nucleic bases and their derivatives on clays, inducing chemical changes on these organic molecules. Several types of well documented reactions for radiolysis of nucleic acid bases and their derivatives are known, even at low doses (i.e., 0.1 Gy). For example, estimates with a dose rate calculated from40K from deep sea clays at 3.8 Ga ago, indicates that over a period of 1000 years the amount of organic material transformated is 1.8 × 10-7 moles/kg-clay. Although ionizing radiation may also induce synthetic reactions with prebiological interest, all in all these considerations indicate that nucleic acid bases and their derivatives adsorbed on clays were exposed for long periods to degradation conditions. Such situation promotes decomposition of organic molecules rather than protection of them and enhancement of further polymerization, as it has been usually taken for granted.

Affiliated with

Also associated with

No associations

Rating

A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A review of conditions affecting the radiolysis due to40K on nucleic acid bases and their derivatives adsorbed on clay minerals: Implications in prebiotic chemistry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-855669