Pushing the limits of sensitivity and resolution for natural abundance 43Ca NMR using ultra-high magnetic field (35.2 T)

Christian Bonhomme (1) , Xiaoling Wang (2) , Ivan Hung (2) , Zhehong Gan (2) , Christel Gervais (1) , Capucine Sassoye (3) , Jessica Rimsza (4) , Jincheng Du (4) , Mark Smith (5) , John Hanna (6) , Stéphanie Sarda (7) , Pierre Gras (7) , Christèle Combes (7) , Danielle Laurencin (8)

1 LCMCP-SMiLES - Spectroscopie, Modélisation, Interfaces pour L'Environnement et la Santé
2 NHMFL - National High Magnetic Field Laboratory
3 LCMCP-MHN - Matériaux Hybrides et Nanomatériaux
4 Department of Materials Science and Engineering [Denton]
5 Department of Chemistry [Lancaster]
6 University of Warwick [Coventry]
7 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
8 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

Natural abundance 43Ca solid state NMR experiments are reported for the first time at ultra-high magnetic field (35.2 T) on a series of Ca-(pyro)phosphate and Ca-oxalate materials, which are of biological relevance in relation to biomineralization processes and the formation of pathological calcifications. The significant gain in both sensitivity and resolution at 35.2 T leads to unprecedented insight into the structure of both crystalline and amorphous phases.

Mots clés: 43Ca solid state NMR; Ca-(pyro)phosphate; Ca-oxalate; Biomineralization

Domaines: Matériaux

Christian Bonhomme, Xiaoling Wang, Ivan Hung, Zhehong Gan, Christel Gervais, et al.. Pushing the limits of sensitivity and resolution for natural abundance 43Ca NMR using ultra-high magnetic field (35.2 T). Chemical Communications, 2018, 54 (69), pp.9591-9594. ⟨10.1039/c8cc05193c⟩. ⟨hal-01861127⟩