{"id":55963,"date":"2025-03-04T20:07:46","date_gmt":"2025-03-04T21:07:46","guid":{"rendered":"https:\/\/peymantaeidi.net\/stem-cell\/?p=55963"},"modified":"2025-03-04T21:35:46","modified_gmt":"2025-03-04T21:35:46","slug":"how-earths-early-cycles-shaped-the-chemistry-of-life","status":"publish","type":"post","link":"https:\/\/peymantaeidi.net\/stem-cell\/2025\/03\/04\/how-earths-early-cycles-shaped-the-chemistry-of-life\/","title":{"rendered":"How Earth's Early Cycles Shaped the Chemistry of Life"},"content":{"rendered":"
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In the Painted Desert of Northern Arizona (shown here in a palette of purples), wet-dry cycling has contributed to the formation of the colorful layers visible in the landscape. (Credit: USGS)<\/p>\n<\/figcaption><\/div>\n

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A new study explores how complex chemical mixtures change under shifting environmental conditions, shedding light on the prebiotic processes that may have led to life on Earth.<\/p>\n

Led by Loren Williams<\/strong><\/a> (Georgia Institute of Technology) and Moran Frenkel-Pinter<\/strong><\/a> (The Hebrew University of Jerusalem) and published<\/a> in Nature Chemistry, <\/em>the team\u2019s paper investigates how chemical mixtures evolve over time, offering new insights into the origins of biological complexity.<\/p>\n

\u201cOur research applies concepts from evolutionary biology to chemistry,\u201d explains Williams, a <\/strong>professor in the School of Chemistry and Biochemistry<\/a>. \u201cWe know that everything in biology can be reduced to chemistry, but the idea of this paper is that in the right conditions, chemistry can evolve, too. We call this chemical evolution.\u201d<\/p>\n

While much research has focused on individual chemical reactions that could lead to biological molecules, this study establishes an experimental model to explore how entire chemical systems evolve when exposed to environmental changes. <\/p>\n

\u201cChemical evolution is chemistry that keeps changing and doing new things,\u201d Williams explains. \u201cIt\u2019s unending chemical change, but with exploration of new chemical spaces. We wondered if we could set up a system that does that without introducing new molecules ourselves \u2014 instead we had the system oscillate between wet and dry conditions.\u201d <\/p>\n

In nature, these systems might look like a landscape where water condenses, and then dries out, over and over again \u2014 conditions that arise naturally from the day-night cycles of our planet.<\/p>\n

From simple molecules to complex systems<\/strong><\/h3>\n

The study identified three key findings \u2014 chemical systems can continuously evolve without reaching equilibrium, avoid uncontrolled complexity through selective chemical pathways, and exhibit synchronized population dynamics among different molecular species. This suggests that environmental factors played a key role in shaping the molecular complexity needed for life to emerge.<\/p>\n

\u201cThis research offers a new perspective on how molecular evolution might have unfolded on early Earth,\u201d says Frenkel-Pinter, assistant professor in the Institute of Chemistry at The Hebrew University of Jerusalem. \u201cBy demonstrating that chemical systems can self-organize and evolve in structured ways, we provide experimental evidence that may help bridge the gap between prebiotic chemistry and the emergence of biological molecules.\u201d <\/p>\n

Beyond its relevance to origins-of-life research, the study\u2019s findings may have broader applications in synthetic biology and nanotechnology. Controlled chemical evolution could be harnessed to design new molecular systems with specific properties, potentially leading to innovations in materials science, drug development, and biotechnology.<\/p>\n

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This research is shared jointly with The Hebrew University of Jerusalem <\/em>newsroom<\/em><\/a>.<\/em><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

In the Painted Desert of Northern Arizona (shown here in a palette of purples), wet-dry<\/p>\n","protected":false},"author":1,"featured_media":55965,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/55963"}],"collection":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/comments?post=55963"}],"version-history":[{"count":2,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/55963\/revisions"}],"predecessor-version":[{"id":55966,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/55963\/revisions\/55966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media\/55965"}],"wp:attachment":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media?parent=55963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/categories?post=55963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/tags?post=55963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}