We show how large DNP enhancements of NMR signals can be obtained from several hydrophobic radicals that are solubilised in aqueous environments by a variety of biologically compatible neutral amphiphiles. In particular we show that the bi-radical TEKPOL can be incorporated into micelles formed by the surfactant polysorbate 80 (Tween-80), where we obtain large DNP enhancements (similar to 60) at 9.4 T and similar to 100 K.
Hydrophobic radicals embedded in neutral surfactants for dynamic nuclear polarization of aqueous environments at 9.4 Tesla / Lelli, Moreno; Rossini, Aaron J.; Casano, Gilles; Ouari, Olivier; Tordo, Paul; Lesage, Anne; Emsley, Lyndon. - In: CHEMICAL COMMUNICATIONS. - ISSN 1359-7345. - STAMPA. - 50:(2014), pp. 10198-10201. [10.1039/c4cc02152e]
Hydrophobic radicals embedded in neutral surfactants for dynamic nuclear polarization of aqueous environments at 9.4 Tesla
LELLI, MORENOMethodology
;
2014
Abstract
We show how large DNP enhancements of NMR signals can be obtained from several hydrophobic radicals that are solubilised in aqueous environments by a variety of biologically compatible neutral amphiphiles. In particular we show that the bi-radical TEKPOL can be incorporated into micelles formed by the surfactant polysorbate 80 (Tween-80), where we obtain large DNP enhancements (similar to 60) at 9.4 T and similar to 100 K.
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