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Open AccessArticle

The Prismatic Layer of Pinna: A Showcase of Methodological Problems and Preconceived Hypotheses

Institut de Systématique, Evolution, Biodiversité (ISYEB), UMR 7205 CNRS MNHN Sorbonne Université, EPHE, Muséum National d’Histoire Naturelle, 75005 Paris, France
Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91192 Gif-sur-Yvette, France
Nanoscopium Beamline, Synchrotron Soleil, 91192 Gif-sur-Yvette, France
Centre de Recherche sur la Paléodiversité et les Paléoenvironnements (CR2P), UMR 7207, Muséum National d’Histoire Naturelle CNRS, Sorbonne Université, 75005 Paris, France
Author to whom correspondence should be addressed.
Minerals 2018, 8(9), 365;
Received: 22 June 2018 / Revised: 10 August 2018 / Accepted: 14 August 2018 / Published: 22 August 2018
(This article belongs to the Special Issue Biomineral Crystal Structure)
The prismatic layer of Pinna (Mollusca) is one of the most studied models for the understanding of the biomineralization mechanisms, but our knowledge of the organic components of this layer is limited to the proteins of the soluble organic matrices. The interplay of the mineral and organic matrices is studied using scanning electron and atomic force microscopy, infra-red spectrometry, thermogravimetric analyses, aminoacids analyses, thin layer chromatography (TLC), X-ray fluorescence, X-ray Absorption near Edge Structure (XANES) and time-of-flight secondary ion mass spectrometry (TOF-SIMS). Proteins, polysaccharides and lipids are detected within the prisms and their envelopes. The role of the technical choices to study calcareous biominerals is evidenced, showing that a single analysis is not enough to decipher complex biominerals. View Full-Text
Keywords: Mollusca; prismatic layer; micro- and nanostructures; composition Mollusca; prismatic layer; micro- and nanostructures; composition
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MDPI and ACS Style

Dauphin, Y.; Brunelle, A.; Medjoubi, K.; Somogyi, A.; Cuif, J.-P. The Prismatic Layer of Pinna: A Showcase of Methodological Problems and Preconceived Hypotheses. Minerals 2018, 8, 365.

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