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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: Solid-state NMR of unlabeled plant cell walls: high-resolution structural analysis without isotopic enrichment

Fig. 3

The influence of various matrices of AMUPol radical on DNP sensitivity enhancement. a DNP enhancement factors on the unlabeled ctl1 sample are 38, 48, 42, and 57, respectively, when preparing the sample with 13C-depleted, d8-glycerol/D2O/H2O (60/30/10 vol%), d6-DMSO/D2O/H2O (80/10/10 vol%), or D2O/H2O (75/25 vol%) solvents. For the matrix-free protocol, there is no bulk solution and only a few mL of D2O is present in the final sample. The detailed experimental parameters are listed in Table 2. b Room-temperature EPR spectra of AMUPol at 9.6 GHz in the above four solvents

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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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