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Are iron porphyrins stable enough to withstand ion bombardment?

Pleyer, Hannes Lukas and Moeller, Ralf and Fujimori, Akira and Fox, Stefan (2018) Are iron porphyrins stable enough to withstand ion bombardment? In: EANA 2018 - Abstractbook. EANA 2018, 24-28 September 2018, Berlin, Germany.

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Official URL: http://www.eana-net.eu/index.php?page=Conferences/EANA2018

Abstract

Porphyrin-type cofactors, especially hemes (iron porphyrins) occur in virtually all terrestrial organisms and are involved in basic metabolic processes. Therefore, hemes are regarded as evolutionary very old biomolecules. Furthermore, it has been speculated that molecules similar to heme could have also evolved on other planets or moons (Suo et al. 2007). Because of their aromaticity, porphyrins are generally very stable and can be easily detected with various analytical methods. These were among the reasons why porphyrins were presumed to be ideal biosignatures (Suo et al. 2007). However, abiotic syntheses for (metallo)porphyrins are now known (e.g., Fox and Strasdeit 2013; Pleyer et al., manuscript submitted). Consequently, these molecules may well be "false positive" biosignatures (Fox and Strasdeit 2017).

Item URL in elib:https://elib.dlr.de/124499/
Document Type:Conference or Workshop Item (Speech)
Title:Are iron porphyrins stable enough to withstand ion bombardment?
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pleyer, Hannes LukasDepartment of Bioinorganic Chemistry, Institute of Chemistry, University of Hohenheim, Stuttgart, GermanyUNSPECIFIED
Moeller, RalfRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; ralf.moeller (at) dlr.dehttps://orcid.org/0000-0002-2371-0676
Fujimori, AkiraMolecular and Cellular Radiation Biology Team, Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), Chiba, JapanUNSPECIFIED
Fox, StefanDepartment of Bioinorganic Chemistry, Institute of Chemistry, University of Hohenheim, Stuttgart, GermanyUNSPECIFIED
Date:28 September 2018
Journal or Publication Title:EANA 2018 - Abstractbook
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Porphyrin-type cofactors, Moon Mars
Event Title:EANA 2018
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:24-28 September 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:10 Dec 2018 15:56
Last Modified:31 Jul 2019 20:22

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