{"id":42565,"date":"2026-09-20T09:53:23","date_gmt":"2026-09-20T07:53:23","guid":{"rendered":"https:\/\/karmaka.de\/?p=42565"},"modified":"2026-09-20T09:53:24","modified_gmt":"2026-09-20T07:53:24","slug":"adsorption-of-meteoritic-sugars-on-forsterite-surfaces-a-first-principles-study","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=42565","title":{"rendered":"Adsorption of Meteoritic Sugars on Forsterite Surfaces: A First-Principles Study<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Abu Asaduzzaman<\/p>\n\n\n\n<p>ACS Earth and Space Chemistry, 17 September 2026<\/p>\n\n\n\n<p><a href=\"https:\/\/pubs.acs.org\/aesccq\/article\/doi\/10.1021\/acsearthspacechem.6c00225\/5431730\/Adsorption-of-Meteoritic-Sugars-on-Forsterite\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/pubs.acs.org\/aesccq\/article-pdf\/doi\/10.1021\/acsearthspacechem.6c00225\/68538997\/acsearthspacechem.6c00225.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Sugar-related organic molecules identified in carbonaceous meteorites provide key insight into the extraterrestrial inventory of prebiotic compounds. Here, density functional theory (DFT) calculations are used to investigate the adsorption of representative sugar acids and sugar alcohols from the Murchison meteorite on the forsterite (010) surface, a model silicate mineral relevant to planetary materials. The results show that adsorption occurs primarily through oxygen-containing functional groups, with both hydroxyl (\u2212OH) and carboxylic (\u2212COOH) groups forming stable Mg\u2013O bonds with surface magnesium sites. Adsorption via the \u2013COOH group is consistently stronger than via \u2013OH due to the combined effect of Mg\u2013O coordination and additional hydrogen bonding. Calculated adsorption energies indicate chemisorption and increase systematically with carbon chain length, reflecting enhanced stabilization for larger molecules. Structural and electronic analyses, including Mg\u2013O bond distances, Bader charge distribution, and density of states, reveal charge redistribution and orbital hybridization at the adsorbate\u2013surface interface. These findings support a plausible mechanism in which sugar molecules can be stabilized on silicate mineral surfaces, facilitating their preservation and delivery in meteoritic environments. The results highlight the potential role of mineral surfaces as both stabilizing substrates and reactive platforms in prebiotic chemical evolution.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abu Asaduzzaman ACS Earth and Space Chemistry, 17 September 2026 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;Sugar-related organic molecules identified in carbonaceous meteorites provide key insight into the extraterrestrial inventory of prebiotic compounds. Here, density functional&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,18,576],"tags":[3273,105,604,107,6192,2867,1772],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42565"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=42565"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42565\/revisions"}],"predecessor-version":[{"id":42566,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42565\/revisions\/42566"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}