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/ | |||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
Title: | Are iron porphyrins stable enough to withstand ion bombardment? | |||||||||||||||
Authors: |
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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 - Research under Space Conditions | |||||||||||||||
DLR - Research theme (Project): | R - Vorhaben Strahlenbiologie (old) | |||||||||||||||
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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