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Article

Evolution of Realistic Organic Mixtures for the Origins of Life through Wet–Dry Cycling

1
Department of Chemistry and Biochemistry, Central Connecticut State University, New Britain, CT 06010, USA
2
Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Claus Jacob
Received: 21 February 2022 / Revised: 29 April 2022 / Accepted: 23 May 2022 / Published: 27 May 2022
(This article belongs to the Special Issue Feature Papers—Multidisciplinary Sciences 2022)
One of the challenges in understanding chemical evolution is the large number of starting organics and environments that were plausible on early Earth. Starting with realistic organic mixtures and using chemical analyses that are not biologically biased, understanding the interplay between organic composition and environment can be approached using statistical analysis. In this work, a mixture of 73 organics was cycled through dehydrating conditions five times, considering environmental parameters of pH, salinity, and rehydration solution. Products were analyzed by HPLC, amide and ester assays, and phosphatase and esterase assays. While all environmental factors were found to influence chemical evolution, salinity was found to play a large role in the evolution of these mixtures, with samples diverging at very high sea salt concentrations. This framework should be expanded and formalized to improve our understanding of abiogenesis. View Full-Text
Keywords: origins of life; prebiotic chemistry; astrobiology origins of life; prebiotic chemistry; astrobiology
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MDPI and ACS Style

Foster, K.; Hillman, B.; Rajaei, V.; Seng, K.; Maurer, S. Evolution of Realistic Organic Mixtures for the Origins of Life through Wet–Dry Cycling. Sci 2022, 4, 22. https://doi.org/10.3390/sci4020022

AMA Style

Foster K, Hillman B, Rajaei V, Seng K, Maurer S. Evolution of Realistic Organic Mixtures for the Origins of Life through Wet–Dry Cycling. Sci. 2022; 4(2):22. https://doi.org/10.3390/sci4020022

Chicago/Turabian Style

Foster, Kiernan, Brooke Hillman, Vahab Rajaei, Kimsorn Seng, and Sarah Maurer. 2022. "Evolution of Realistic Organic Mixtures for the Origins of Life through Wet–Dry Cycling" Sci 4, no. 2: 22. https://doi.org/10.3390/sci4020022

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