Carbon speciation in organic fossils using 2D to 3D x-ray Raman multispectral imaging

Autor: Christoph J. Sahle, Jean-Pascal Rueff, Romain Garrouste, Sylvain Bernard, Loïc Bertrand, Uwe Bergmann, Alessandro Mirone, Pierre Gueriau, Rafaella Georgiou
Přispěvatelé: Institut photonique d'analyse non-destructive européen des matériaux anciens (IPANEMA), Muséum national d'Histoire naturelle (MNHN)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Université de Lausanne (UNIL), European Synchrotron Radiation Facility (ESRF), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Stanford PULSE Center, SLAC National Accelerator Laboratory (SLAC), Stanford University-Stanford University, Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0094,PATRIMA,Tangible heritage(2010), European Project: 654028,H2020 Pilier Excellent Science,H2020-INFRAIA-2014-2015,IPERION CH(2015), European Project: 739503,H2020-EU.1.4.1.1. - Developing new world-class research infrastructures,E-RIHS PP(2017), Université de Lausanne = University of Lausanne (UNIL), Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE)
Rok vydání: 2019
Předmět:
In situ
Insecta
Chitin
02 engineering and technology
Spectrum Analysis
Raman
[SHS.MUSEO]Humanities and Social Sciences/Cultural heritage and museology
Raman
Chemical composition
Research Articles
[PHYS]Physics [physics]
0303 health sciences
Multidisciplinary
Fossils
Chemistry
SciAdv r-articles
[CHIM.MATE]Chemical Sciences/Material chemistry
Plants
021001 nanoscience & nanotechnology
symbols
Ant
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology
0210 nano-technology
Research Article
medicine.medical_specialty
Materials Science
030303 biophysics
chemistry.chemical_element
Mineralogy
X-ray
03 medical and health sciences
symbols.namesake
Imaging
Three-Dimensional
Polysaccharides
[CHIM.ANAL]Chemical Sciences/Analytical chemistry
Carboniferous
medicine
Animals
Ants
Paleobiology
Paleontology
15. Life on land
Amber
Spectral imaging
Applied Sciences and Engineering
[SDU]Sciences of the Universe [physics]
[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
Inclusion (mineral)
Raman spectroscopy
Insect
Carbon
Zdroj: Science Advances
Science Advances, American Association for the Advancement of Science (AAAS), 2019, 5 (8), pp.eaaw5019. ⟨10.1126/sciadv.aaw5019⟩
Science Advances, American Association for the Advancement of Science (AAAS), 2019
Science Advances, 2019, 5 (8), pp.eaaw5019. ⟨10.1126/sciadv.aaw5019⟩
'Science Advances ', vol: 5, pages: eaaw5019-1-eaaw5019-10 (2019)
ISSN: 2375-2548
Popis: X-ray Raman multispectral imaging identifies the 3D chemistry of carbon in entire organic paleontological specimens.
The in situ two-dimensional (2D) and 3D imaging of the chemical speciation of organic fossils is an unsolved problem in paleontology and cultural heritage. Here, we use x-ray Raman scattering (XRS)–based imaging at the carbon K-edge to form 2D and 3D images of the carbon chemistry in two exceptionally preserved specimens, a fossil plant dating back from the Carboniferous and an ancient insect entrapped in 53-million-year-old amber. The 2D XRS imaging of the plant fossil reveals a homogeneous chemical composition with micrometric “pockets” of preservation, likely inherited from its geological history. The 3D XRS imaging of the insect cuticle displays an exceptionally well preserved remaining chemical signature typical of polysaccharides such as chitin around a largely hollowed-out inclusion. Our results open up new perspectives for in situ chemical speciation imaging of fossilized organic materials, with the potential to enhance our understanding of organic specimens and their paleobiology.
Databáze: OpenAIRE
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