Water-soluble narrow-line radicals for dynamic nuclear polarization.
Water-soluble narrow-line radicals for dynamic nuclear polarization.
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DOI:
10.1021/ja304918g
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发表时间:
2012-09-05
影响因子:
15
通讯作者:
Swager TM
中科院分区:
文献类型:
--
作者:
Haze O;Corzilius B;Smith AA;Griffin RG;Swager TM
The synthesis of air-stable highly water-soluble organic radicals containing a 1,3-bisdiphenylene-2-phenylallyl (BDPA) core is reported. A sulfonated derivative, SA-BDPA, retains the narrow EPR linewidth (<30 MHz at 5 T) of the parent BDPA in highly concentrated glycerol/water solutions (40 mM), which enables its use as polarizing agent for solid effect dynamic nuclear polarization (SE DNP). Sensitivity enhancement of 110 was obtained in high field magic-angle-spinning nuclear magnetic resonance (MAS NMR) experiments. The ease of synthesis and high maximum enhancements obtained with the BDPA-based radicals constitute a major advance over the trityl-type narrow line polarization agents.
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影响因子:
7.4
作者:
Bobko, Andrey A.;Dhimitruka, Ilirian;Eubank, Timothy D.;Marsh, Clay B.;Zweier, Jay L.;Khramtsov, Valery V.
通讯作者:
Khramtsov, Valery V.
影响因子:
15
作者:
GRIFFITHS, JM;LAKSHMI, KV;GRIFFIN, RG
通讯作者:
GRIFFIN, RG
影响因子:
4.4
作者:
Hu, Kan-Nian;Bajaj, Vikram S.;Griffin, Robert G.
通讯作者:
Griffin, Robert G.
影响因子:
15
作者:
KOELSCH, CF
通讯作者:
KOELSCH, CF
DOI:
10.1073/pnas.0900908106
发表时间:
2009-06-09
影响因子:
11.1
作者:
Bajaj, Vikram S.;Mak-Jurkauskas, Melody L.;Griffin, Robert G.
通讯作者:
Griffin, Robert G.