Observation of a helix-coil transition by pulsed-field-gradient spin-echo nuclear magnetic resonance

1968 ◽  
Vol 90 (17) ◽  
pp. 4739-4739 ◽  
Author(s):  
Robert E. Moll
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Field Gradient ◽  
Spin Echo ◽  
Pulsed Field ◽  
Coil Transition ◽  
Nuclear Magnetic

scholarly journals Pulsed Field Gradient Nuclear Magnetic Resonance as a Probe of Liquid State Molecular Organization

1984 ◽  
Vol 37 (4) ◽  
pp. 359 ◽  
Author(s):  
PT Callaghan
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Field Gradient ◽  
Spin Echo ◽  
Nuclear Magnetic Resonance Experiment ◽  
Molecular Organization ◽  
Pulsed Field ◽  
Pulse Separation ◽  
Magnetic Field Gradients ◽  
Nuclear Magnetic

The imposition of magnetic field gradients on a nuclear magnetic resonance experiment imparts a spatial tag to the molecules via the Larmor frequencies of the nuclei (commonly protons) within. A sensitive measure of changes in the frequency distribution is afforded by detecting the loss of phase coherence in a spin-echo experiment performed in the presence of gradient pulses. Here the molecular displacements may be measured over the duration given by the pulse separation. Pulsed field gradient nuclear magnetic resonance (PFGNMR) employs timesca1es of tens of milliseconds and has a displacement sensitivity of the order 100 nm.

scholarly journals In situ effective diffusion coefficient profiles in live biofilms using pulsed-field gradient nuclear magnetic resonance

2010 ◽  
Vol 106 (6) ◽  
pp. 928-937 ◽  
Author(s):  
Ryan S. Renslow ◽  
Paul D. Majors ◽  
Jeffrey S. McLean ◽  
Jim K. Fredrickson ◽  
Bulbul Ahmed ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Diffusion Coefficient ◽  
Magnetic Resonance ◽  
Field Gradient ◽  
Effective Diffusion Coefficient ◽  
Effective Diffusion ◽  
Pulsed Field ◽  
Nuclear Magnetic
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