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Therefore, samples to be analyzed by instruments on board Mars probes for molecular content should be selectively chosen to have the highest organic preservation content. To support the identification of organic molecules on Mars, the behavior under UV irradiation of two organic compounds, undecanoic acid and L-phenylalanine, in the presence of vermiculite and two chloride salts, NaCl and MgCl, was studied. The degradation of the molecule's bands was monitored through IR spectroscopy. Our results show that, while vermiculite acts as a photoprotective mineral with L-phenylalanine, it catalyzes the photodegradation of undecanoic acid molecules. On the other hand, both chloride salts studied decreased the degradation of both organic species acting as photoprotectors. While these results do not allow us to conclude on the preservation capabilities of vermiculite, they show that places where chloride salts are present could be good candidates for\n                    <jats:italic toggle=\"yes\">in situ<\/jats:italic>\n                    analytic experiments on Mars due to their organic preservation capacity under UV radiation.\n                  <\/jats:p>","DOI":"10.1089\/ast.2023.0088","type":"journal-article","created":{"date-parts":[[2024,4,26]],"date-time":"2024-04-26T11:34:48Z","timestamp":1714131288000},"page":"518-537","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Undecanoic Acid and L-Phenylalanine in Vermiculite: Detection, Characterization, and UV Degradation Studies for Biosignature Identification on Mars"],"prefix":"10.1177","volume":"24","author":[{"given":"Oph\u00e9lie","family":"McIntosh","sequence":"first","affiliation":[{"name":"LATMOS\/IPSL, UVSQ Universit\u00e9 Paris-Saclay, Sorbonne Universit\u00e9, CNRS, Guyancourt, France."},{"name":"INAF - Astrophysical Observatory of Arcetri, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Garc\u00eda-Florentino","sequence":"additional","affiliation":[{"name":"INAF - Astrophysical Observatory of Arcetri, Firenze, Italy."},{"name":"Department of Analytical Chemistry, University of the Basque Country UPV\/EHU, Bilbao, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teresa","family":"Fornaro","sequence":"additional","affiliation":[{"name":"INAF - Astrophysical Observatory of Arcetri, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Domenica","family":"Marabello","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Torino, Torino, Italy."},{"name":"Interdepartmental Center for Crystallography, University of Torino, Torino, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Alberini","sequence":"additional","affiliation":[{"name":"INAF - Astrophysical Observatory of Arcetri, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandra","family":"Siljestr\u00f6m","sequence":"additional","affiliation":[{"name":"Department of Methodology, Textiles and Medical Technology, RISE Research Institutes of Sweden, Stockholm, Sweden."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malgorzata","family":"Biczysko","sequence":"additional","affiliation":[{"name":"International Centre for Quantum and Molecular Structures, Physics Department, College of Science, Shanghai University, Shanghai, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cyril","family":"Szopa","sequence":"additional","affiliation":[{"name":"LATMOS\/IPSL, UVSQ Universit\u00e9 Paris-Saclay, Sorbonne Universit\u00e9, CNRS, Guyancourt, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Brucato","sequence":"additional","affiliation":[{"name":"INAF - Astrophysical Observatory of Arcetri, Firenze, Italy."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,5,17]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2018.09.004"},{"key":"e_1_3_3_3_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.1824881"},{"key":"e_1_3_3_4_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3cp53413h"},{"key":"e_1_3_3_5_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.464304"},{"key":"e_1_3_3_6_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.040539497"},{"key":"e_1_3_3_7_1","doi-asserted-by":"publisher","DOI":"10.1089\/ast.2016.164"},{"key":"e_1_3_3_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/wcms.1349"},{"key":"e_1_3_3_9_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.194.4260.72"},{"key":"e_1_3_3_10_1","doi-asserted-by":"publisher","DOI":"10.1029\/js082i028p04641"},{"key":"e_1_3_3_11_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp509985u"},{"key":"e_1_3_3_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpca.5b10067"},{"key":"e_1_3_3_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/qua.25188"},{"key":"e_1_3_3_14_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.1894929"},{"key":"e_1_3_3_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-2860(99)00291-4"},{"key":"e_1_3_3_16_1","doi-asserted-by":"publisher","DOI":"10.1029\/2018JE005758"},{"key":"e_1_3_3_17_1","unstructured":"Carter J Quantin C Thollot P et al. 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