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Percot A, Mahieddine F, Yano H, Hasegawa S, Tabata M, Yamagishi A, Mita H, Paredes-Arriaga A, Maurel MC, Lambert JF, Baklouti D, Zins EL. Surface-Enhanced Raman Spectroscopy (SERS) for Identifying Traces of Adenine in Organic-Bearing Extraterrestrial Dust Analogs Captured in the Tanpopo Aerogel after Hypervelocity Impacts. Gels 2024; 10:249. [PMID: 38667668 PMCID: PMC11049422 DOI: 10.3390/gels10040249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/22/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
Raman spectroscopy is a non-destructive analytical technique for characterizing organic and inorganic materials with spatial resolution in the micrometer range. This makes it a method of choice for space-mission sample characterization, whether on return or in situ. To enhance its sensitivity, we use signal amplification via interaction with plasmonic silver-based colloids, which corresponds to surface-enhanced Raman scattering (SERS). In this study, we focus on the analysis of biomolecules of prebiotic interest on extraterrestrial dust trapped in silica aerogel, jointly with the Japanese Tanpopo mission. The aim is twofold: to prepare samples as close as possible to the real ones, and to optimize analysis by SERS for this specific context. Serpentinite was chosen as the inorganic matrix and adenine as the target biomolecule. The dust was projected at high velocity into the trapping aerogel and then mechanically extracted. A quantitative study shows effective detection even for adenine doping from a 5·10-9mol/L solution. After the dust has been expelled from the aerogel using a solvent, SERS mapping enables unambiguous adenine detection over the entire dust surface. This study shows the potential of SERS as a key technique not only for return samples, but also for upcoming new explorations.
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Affiliation(s)
- Aline Percot
- Sorbonne Université, CNRS MONARIS UMR8233, 75005 Paris, France; (F.M.); (E.-L.Z.)
| | - Farah Mahieddine
- Sorbonne Université, CNRS MONARIS UMR8233, 75005 Paris, France; (F.M.); (E.-L.Z.)
| | - Hajime Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan; (H.Y.)
| | - Sunao Hasegawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan; (H.Y.)
| | - Makoto Tabata
- Department of Physics, Chiba University, Chiba 263-8522, Japan;
| | - Akihiko Yamagishi
- Department of Applied Life Science, Tokyo University of Pharmacy and Life Sciences, Hachiojishi 192-0392, Japan;
| | - Hajime Mita
- Fukuoka Institute of Technology, Wajiro-higashi, Fukuoka 811-0295, Japan;
| | - Alejandro Paredes-Arriaga
- Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Cd. Universitaria, Coyoacán, C.P, Ciudad de México 04510, Mexico;
- Laboratorio de Evolución Química, Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Cd. Universitaria, Coyoacán, C.P, Ciudad de México 04510, Mexico
| | - Marie-Christine Maurel
- Institut de Systématique, Evolution, Biodiversité( ISYEB), Museum National d’Histoire Naturelle (MNHN), CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, CP 51, 75005 Paris, France;
| | - Jean-François Lambert
- Laboratoire d’Archéologie Moléculaire et Structurale, Sorbonne Université, CNRS UMR 8220, 75005 Paris, France;
| | - Donia Baklouti
- Institut d’Astrophysique Spatiale, Université Paris-Saclay, CNRS, 91405 Orsay Cedex, France
| | - Emilie-Laure Zins
- Sorbonne Université, CNRS MONARIS UMR8233, 75005 Paris, France; (F.M.); (E.-L.Z.)
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