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Poster communications

New Expectation from DNP-Enhanced SS-NMR to figure out the Role of the Organic-Silica Interfaces: the Case of Diatom Frustules and Marine Siliceous Sponge Spicules

Sylvie Masse 1 Guillaume Laurent 2 Thibaud Coradin 1 Andrzej Pisera 3
1 LCMCP-MATBIO - Matériaux et Biologie
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
2 LCMCP-SMiLES - Spectroscopie, Modélisation, Interfaces pour L'Environnement et la Santé
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
Abstract : While a lot of work is needed to figure out the organic-silica interfaces in natural materials such as diatom frustules or marine siliceous sponge spicules, Solid-State NMR appears to be a powerful toolbox with several nuclei and methods to carry out. Nevertheless, natural abundance in 13 C as well as a too poor C-content in the cleaned specimen do not allow nor 2D correlations neither well-resolved 1D spectra, that are necessary to go further on species proximity and connectivity assessment. Conjugating DNP to SS-NMR appears to be a promising solution to enhance the signal.
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Submitted on : Tuesday, June 18, 2019 - 10:50:57 AM
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Sylvie Masse, Guillaume Laurent, Thibaud Coradin, Andrzej Pisera. New Expectation from DNP-Enhanced SS-NMR to figure out the Role of the Organic-Silica Interfaces: the Case of Diatom Frustules and Marine Siliceous Sponge Spicules. Magnetism and Magnetic Resonance: Magnetic Resonance, Understanding, Measurements and Modeling, Jun 2019, Strasbourg, France. ⟨hal-02156116⟩

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