In-place molecular preservation of cellulose in 5,000-year-old archaeological textiles.
cellulosic textiles
cultural heritage
fossilization
nanoimaging
synchrotron
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
18 08 2020
18 08 2020
Historique:
pubmed:
5
8
2020
medline:
5
8
2020
entrez:
5
8
2020
Statut:
ppublish
Résumé
The understanding of fossilization mechanisms at the nanoscale remains extremely challenging despite its fundamental interest and its implications for paleontology, archaeology, geoscience, and environmental and material sciences. The mineralization mechanism by which cellulosic, keratinous, and silk tissues fossilize in the vicinity of archaeological metal artifacts offers the most exquisite preservation through a mechanism unexplored on the nanoscale. It is at the center of the vast majority of ancient textiles preserved under nonextreme conditions, known through extremely valuable fragments. Here we show the reconstruction of the nanoscale mechanism leading to the preservation of an exceptional collection of ancient cellulosic textiles recovered in the ancient Near East (4,000 to 5,000 years ago). We demonstrate that even the most mineralized fibers, which contain inorganic compounds throughout their histology, enclose preserved cellulosic remains in place. We evidence a process that combines the three steps of water transport of biocidal metal cations and soil solutes, degradation and loss of crystallinity of cellulosic polysaccharides, and silicification.
Identifiants
pubmed: 32747556
pii: 2004139117
doi: 10.1073/pnas.2004139117
pmc: PMC7443972
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
19670-19676Informations de copyright
Copyright © 2020 the Author(s). Published by PNAS.
Déclaration de conflit d'intérêts
The authors declare no competing interest.
Références
Int J Pharm. 2004 Jan 28;269(2):433-42
pubmed: 14706254
Sci Rep. 2016 Apr 29;6:25279
pubmed: 27125755
Chem Rev. 2017 Apr 12;117(7):5146-5173
pubmed: 27958707
Sci Rep. 2016 May 25;6:26152
pubmed: 27221593
Annu Rev Anal Chem (Palo Alto Calif). 2012;5:361-89
pubmed: 22524223
Science. 2010 Jun 25;328(5986):1634; author reply 1634
pubmed: 20576873
Carbohydr Res. 2003 Sep 1;338(18):1869-76
pubmed: 12932370
Sci Adv. 2019 Aug 30;5(8):eaaw5019
pubmed: 31497643
J Am Chem Soc. 2002 Aug 7;124(31):9074-82
pubmed: 12149011
Nat Commun. 2017 Jan 31;8:14220
pubmed: 28140389
Opt Lett. 2003 Nov 15;28(22):2207-9
pubmed: 14649943
Science. 1993 Mar 5;259(5100):1439-42
pubmed: 17801278
Nat Commun. 2014 Dec 08;5:5665
pubmed: 25482611
Nat Commun. 2018 Aug 29;9(1):3507
pubmed: 30158573
Opt Express. 2012 Oct 22;20(22):24623-35
pubmed: 23187225
J Am Chem Soc. 2003 Oct 1;125(39):11834-5
pubmed: 14505402