A new probehead was developed enabling Dynamic Nuclear Polarization (DNP)-enhanced Fast-Field-Cycling relaxometry at 340mT polarization field strength. It is based on a dielectric cavity resonator operating in the TM110 mode at 9.5GHz, which is suitable for both transverse and axial magnet geometries with a bore access of at least 20mm. The probehead includes a planar radio frequency coil for NMR detection and is compatible with standard 3mm NMR tubes. The resonator was assessed in terms of the microwave conversion factor and microwave-induced sample heating effects. Due to the compact size of the cavity, appreciable microwave magnetic field strengths were observed even with only moderate quality factors. Exemplary DNP experiments at 9.5GHz and 2.0GHz microwave frequency are compared for three different viscous samples, demonstrating the advantage of DNP at 9.5GHz for such systems. This new probehead enables new applications of DNP-enhanced Fast-Field-Cycling relaxometry of viscous and solid systems.
p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica} p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica}
[NMR paper] Dry-cured ham tissue characterization by fast field cycling NMR relaxometry and quantitative magnetization transfer.
Dry-cured ham tissue characterization by fast field cycling NMR relaxometry and quantitative magnetization transfer.
Dry-cured ham tissue characterization by fast field cycling NMR relaxometry and quantitative magnetization transfer.
Magn Reson Chem. 2016 May 31;
Authors: Bajd F, Gradišek A, Apih T, Serša I
Abstract
Fast field cycling (FFC) and quantitative magnetization transfer (qMT) NMR methods are two powerful tools in NMR analysis of biological tissues. The qMT method is well established in biomedical NMR applications,...
nmrlearner
Journal club
0
06-01-2016 11:08 AM
9th Field-Cycling NMR conference, Aberdeen, 27-30 July 2015
From The DNP-NMR Blog:
9th Field-Cycling NMR conference, Aberdeen, 27-30 July 2015
From the Ampere Magnetic Resonance List
The 9th Conference on Fast Field-Cycling NMR Relaxometry will be held at the University of Aberdeen, Scotland, from Monday 27th to Thursday 30th July, 2015.
This is the biennial Field-Cycling NMR conference, previously held in Berlin (1998) and then every two years in Torino until 2013. So it is the first move for the conference since 2001!
nmrlearner
News from NMR blogs
0
05-05-2015 07:15 AM
[NMR paper] New applications and perspectives of fast field cycling NMR relaxometry.
New applications and perspectives of fast field cycling NMR relaxometry.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--media.wiley.com-assets-2250-98-WileyOnlineLibrary_FullTextOnline_120x27.gif Related Articles New applications and perspectives of fast field cycling NMR relaxometry.
Magn Reson Chem. 2015 Apr 9;
Authors: Steele RM, Korb JP, Ferrante G, Bubici S
Abstract
The field cycling NMR relaxometry method (also known as fast field cycling (FFC) when instruments employing fast electrical switching of...
nmrlearner
Journal club
0
04-11-2015 12:04 AM
Fast-field-cycling relaxometry enhanced by Dynamic Nuclear Polarization
From The DNP-NMR Blog:
Fast-field-cycling relaxometry enhanced by Dynamic Nuclear Polarization
Neudert, O., et al., Fast-field-cycling relaxometry enhanced by Dynamic Nuclear Polarization. Microporous and Mesoporous Materials, 2015. 205(0): p. 70-74.
http://www.sciencedirect.com/science/article/pii/S1387181114003941
nmrlearner
News from NMR blogs
0
04-06-2015 02:58 PM
An Alderman-Grant resonator for S-Band Dynamic Nuclear Polarization
From The DNP-NMR Blog:
An Alderman-Grant resonator for S-Band Dynamic Nuclear Polarization
Neudert, O., et al., An Alderman-Grant resonator for S-Band Dynamic Nuclear Polarization. J Magn Reson, 2014. 242C(0): p. 79-85.
http://www.ncbi.nlm.nih.gov/pubmed/24607825
nmrlearner
News from NMR blogs
0
03-14-2014 07:34 PM
[NMR paper] Effects of cholesterol on membrane molecular dynamics studied by fast field cycling NMR relaxometry.
Effects of cholesterol on membrane molecular dynamics studied by fast field cycling NMR relaxometry.
Related Articles Effects of cholesterol on membrane molecular dynamics studied by fast field cycling NMR relaxometry.
Phys Chem Chem Phys. 2013 Aug 22;
Authors: Hsieh CJ, Chen YW, Hwang DW
Abstract
Biological membranes are complex structures composed of various lipids and proteins. Different membrane compositions affect viscoelastic and hydrodynamic properties of membranes, which are critical to their functions. Lipid bilayer vesicles...
A compact X-Band resonator for DNP-enhanced Fast-Field-Cycling NMR #DNPNMR
Linear Mode
