Dynamic nuclear polarization of a glassy matrix prepared by solid state mechanochemical amorphization of crystalline substances

E Elisei; M Filibian; P Carretta; S Colombo Serra; F Tedoldi; J F Willart; M Descamps; A Cesàro

doi:10.1039/c4cc08348b

Dynamic nuclear polarization of a glassy matrix prepared by solid state mechanochemical amorphization of crystalline substances

Chem Commun (Camb). 2015 Feb 7;51(11):2080-3. doi: 10.1039/c4cc08348b. Epub 2014 Dec 23.

Authors

E Elisei¹, M Filibian, P Carretta, S Colombo Serra, F Tedoldi, J F Willart, M Descamps, A Cesàro

Affiliation

¹ Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy. cesaro@units.it.

PMID: 25534192
DOI: 10.1039/c4cc08348b

Abstract

A mechanochemical "solvent-free" route is presented for the preparation of solid samples ready to be employed in the Dynamic Nuclear Polarization (DNP). (1)H-DNP build-up curves at 3.46 T as a function of temperature and radical concentration show steady state nuclear polarization of 10% (0.5% TEMPO concentration at 1.75 K).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cyclic N-Oxides / chemistry
Glass / chemistry*
Mechanical Phenomena*
Nanoparticles / chemistry*
Temperature
Trehalose / chemistry

Substances

Cyclic N-Oxides
Trehalose
TEMPO