High-energy chemistry of formamide: A unified mechanism of nucleobase formation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00442228" target="_blank" >RIV/68378271:_____/15:00442228 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081707:_____/15:00438615 RIV/61388955:_____/15:00438615 RIV/00216224:14740/15:00082888

Výsledek na webu

<a href="http://dx.doi.org/10.1073/pnas.1412072111" target="_blank" >http://dx.doi.org/10.1073/pnas.1412072111</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1073/pnas.1412072111" target="_blank" >10.1073/pnas.1412072111</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-energy chemistry of formamide: A unified mechanism of nucleobase formation

Popis výsledku v původním jazyce

The coincidence of the Late Heavy Bombardment (LHB) period and the emergence of terrestrial life about 4 billion years ago suggest that extraterrestrial impacts could contribute to the synthesis of the building blocks of the first life-giving molecules. We simulated the high-energy synthesis of nucleobases from formamide during the impact of an extraterrestrial body. A high-power laser has been used to induce the dielectric breakdown of the plasma produced by the impact. The results demonstrate that the initial dissociation of the formamide molecule could produce a large amount of highly reactive CN and NH radicals. Our findings demonstrate that extraterrestrial impacts, which were one order of magnitude more abundant during the LHB period than before and after, could not only destroy the existing ancient life forms, but could also contribute to the creation of biogenic molecules.

Název v anglickém jazyce

High-energy chemistry of formamide: A unified mechanism of nucleobase formation

Popis výsledku anglicky

The coincidence of the Late Heavy Bombardment (LHB) period and the emergence of terrestrial life about 4 billion years ago suggest that extraterrestrial impacts could contribute to the synthesis of the building blocks of the first life-giving molecules. We simulated the high-energy synthesis of nucleobases from formamide during the impact of an extraterrestrial body. A high-power laser has been used to induce the dielectric breakdown of the plasma produced by the impact. The results demonstrate that the initial dissociation of the formamide molecule could produce a large amount of highly reactive CN and NH radicals. Our findings demonstrate that extraterrestrial impacts, which were one order of magnitude more abundant during the LHB period than before and after, could not only destroy the existing ancient life forms, but could also contribute to the creation of biogenic molecules.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Proceedings of the National Academy of Sciences of the United States of America

ISSN

0027-8424

e-ISSN

—

Svazek periodika

112

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

657-662

Kód UT WoS článku

000348040700025

EID výsledku v databázi Scopus

2-s2.0-84921327907