High frequency (140 GHz) dynamic nuclear polarization: Polarization transfer to a solute in frozen aqueous solution

1995 ◽  
Vol 102 (24) ◽  
pp. 9494-9497 ◽  
Author(s):  
G. J. Gerfen ◽  
L. R. Becerra ◽  
D. A. Hall ◽  
R. G. Griffin ◽  
R. J. Temkin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dynamic Nuclear Polarization ◽  
High Frequency ◽  
Nuclear Polarization ◽  
Polarization Transfer

Highly Efficient, Water-Soluble Polarizing Agents for Dynamic Nuclear Polarization at High Frequency

2013 ◽  
Vol 125 (41) ◽  
pp. 11058-11061 ◽  
Author(s):  
Claire Sauvée ◽  
Melanie Rosay ◽  
Gilles Casano ◽  
Fabien Aussenac ◽  
Ralph T. Weber ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
High Frequency ◽  
Nuclear Polarization ◽  
Water Soluble ◽  
Highly Efficient

scholarly journals High frequency dynamic nuclear polarization: New directions for the 21st century

2019 ◽  
Vol 306 ◽  
pp. 128-133 ◽  
Author(s):  
Robert G. Griffin ◽  
Timothy M. Swager ◽  
Richard J. Temkin
Keyword(s):  
21St Century ◽  
Dynamic Nuclear Polarization ◽  
High Frequency ◽  
Nuclear Polarization ◽  
New Directions

High-Frequency Dynamic Nuclear Polarization in the Nuclear Rotating Frame

2000 ◽  
Vol 144 (1) ◽  
pp. 134-141 ◽  
Author(s):  
C.T Farrar ◽  
D.A Hall ◽  
G.J Gerfen ◽  
M Rosay ◽  
J.-H Ardenkjær-Larsen ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
High Frequency ◽  
Nuclear Polarization ◽  
Rotating Frame

Field Dependent Dynamic Nuclear Polarization with Radicals in Aqueous Solution

2008 ◽  
Vol 130 (11) ◽  
pp. 3254-3255 ◽  
Author(s):  
Peter Höfer ◽  
Giacomo Parigi ◽  
Claudio Luchinat ◽  
Patrick Carl ◽  
Gisela Guthausen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Field Dependent

1H and13C Dynamic Nuclear Polarization in Aqueous Solution with a Two-Field (0.35 T/14 T) Shuttle DNP Spectrometer

2009 ◽  
Vol 131 (42) ◽  
pp. 15086-15087 ◽  
Author(s):  
Marcel Reese ◽  
Maria-Teresa Türke ◽  
Igor Tkach ◽  
Giacomo Parigi ◽  
Claudio Luchinat ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization

scholarly journals Studies of Dynamic Nuclear Polarization with Nitroxides in Aqueous Solution

2008 ◽  
Vol 34 (3-4) ◽  
pp. 393-398 ◽  
Author(s):  
P. Höfer ◽  
P. Carl ◽  
G. Guthausen ◽  
T. Prisner ◽  
M. Reese ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization

scholarly journals Boosting Dissolution-Dynamic Nuclear Polarization by Multiple-Step Dipolar Order Mediated 1H->13C Cross-Polarization

2021 ◽  
Author(s):  
Stuart J. Elliott ◽  
Olivier Cala ◽  
Quentin Chappuis ◽  
Samuel Cousin ◽  
Morgan Ceillier ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Pulse Sequence ◽  
Polarization Transfer ◽  
Cross Polarization ◽  
Spin Order ◽  
Sample Dissolution ◽  
Dipolar Order ◽  
Multiple Step ◽  
Dissolution Dynamic Nuclear Polarization

<p>Dissolution-dynamic nuclear polarization can be boosted by employing multiplecontact cross-polarization techniques to transfer polarization from 1H to 13C spins. The method is efficient and significantly reduces polarization build-up times, however, it involves high-power radiofrequency pulses in a superfluid helium environment which limit its implementation and applicability and prevent a significant scaling-up of the sample size.</p> <p>We propose to overcome this limitation by a stepwise transfer of polarization using a lowenergy and low-peak power radiofrequency pulse sequence where the 1H®13C polarization transfer is mediated by a dipolar spin order reservoir. An experimental demonstration is presented for [1-13C]sodium acetate. A solid-state 13C polarization of ~43.5% was achieved using this method with a build-up time constant of ~5.1 minutes, leading to a ~28.5% 13C polarization in the liquidstate after sample dissolution. The low-power multiple-step polarization transfer efficiency with respect to the most advanced and highest-power multiple-contact cross-polarization approach was found to be ~0.69.</p>

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