scholarly journals The association of dimethylsulfoxide and model membranes studied by pulse-field gradient NMR

2004 ◽  
Vol 18 (2) ◽  
pp. 265-269 ◽  
Author(s):  
Anthony Kennedy ◽  
Carla J. Long ◽  
Peter J. Hmel ◽  
Rickey Hicks ◽  
Thomas J. Reid
Keyword(s):  
Field Gradient ◽  
Mole Fraction ◽  
Diffusion Coefficients ◽  
Pulse Field ◽  
Cellular Injury ◽  
Pulse Field Gradient ◽  
Spectra Analysis ◽  
Self Diffusion ◽  
Dppc Vesicle

The use of dimethylsulfoxide (DMSO) as a cryoprotectant to reduce cellular injury during freezing is well known, however the intermolecular interactions between this amphiphilic molecule and biological membranes that form the basis of this protection are unknown. DMSO–dipalmitoylphosphatidylcholine (DPPC) vesicle interactions were investigated in pulsed-field gradient NMR (PFGNMR) experiments and spectra analysis allowed for the determination of self-diffusion coefficients for each species present. The mole fraction of DMSO associated with the DPPC vesicles was then calculated from the diffusion coefficients: the mole fraction increased from 14% to 42% as the membrane was heated from below to above the main phase transition temperature.

Self-diffusion of water, ethanol and decafluropentane in perfluorosulfonate ionomer by pulse field gradient NMR

Polymer ◽  
2001 ◽  
Vol 42 (15) ◽  
pp. 6485-6492 ◽  
Author(s):  
X Gong ◽  
A Bandis ◽  
A Tao ◽  
G Meresi ◽  
Y Wang ◽  
...  
Keyword(s):  
Field Gradient ◽  
Pulse Field ◽  
Pulse Field Gradient ◽  
Self Diffusion

Determination of ionic self-diffusion coefficients of lithium electrolytes using the pulsed field gradient NMR

1999 ◽  
Vol 81-82 ◽  
pp. 772-776 ◽  
Author(s):  
Yuria Saito ◽  
Hitoshi Yamamoto ◽  
Osamu Nakamura ◽  
Hiroyuki Kageyama ◽  
Hiroshi Ishikawa ◽  
...  
Keyword(s):  
Field Gradient ◽  
Diffusion Coefficients ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Self Diffusion

Determination of Molecular Self-Diffusion Coefficients Using Pulsed-Field-Gradient NMR: An Experiment for Undergraduate Physical Chemistry Laboratory

2012 ◽  
Vol 89 (6) ◽  
pp. 780-783 ◽  
Author(s):  
Jennifer Harmon ◽  
Cierra Coffman ◽  
Spring Villarrial ◽  
Steven Chabolla ◽  
Kurt A. Heisel ◽  
...  
Keyword(s):  
Physical Chemistry ◽  
Field Gradient ◽  
Diffusion Coefficients ◽  
Chemistry Laboratory ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Self Diffusion

Water self-diffusion in chlorella sp. studied by pulse field gradient NMR

2003 ◽  
Vol 21 (9) ◽  
pp. 1009-1017 ◽  
Author(s):  
Choong-Hun Cho ◽  
Young-Shick Hong ◽  
Kirim Kang ◽  
Vitaly I. Volkov ◽  
Vladimir Skirda ◽  
...  
Keyword(s):  
Field Gradient ◽  
Pulse Field ◽  
Pulse Field Gradient ◽  
Self Diffusion ◽  
Chlorella Sp

scholarly journals Quarternization of 3-azido-1-propyne oligomers obtained by copper(I)-catalyzed azide–alkyne cycloaddition polymerization

2015 ◽  
Vol 11 ◽  
pp. 1037-1042 ◽  
Author(s):  
Shun Nakano ◽  
Akihito Hashidzume ◽  
Takahiro Sato
Keyword(s):  
Field Gradient ◽  
Methyl Iodide ◽  
Spin Echo ◽  
Pulse Field ◽  
Pulse Field Gradient

3-Azido-1-propyne oligomer (oligoAP) samples, prepared by copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) polymerization, were quarternized quantitatively with methyl iodide in sulfolane at 60 °C to obtain soluble oligomers. The conformation of the quarternized oligoAP in dilute DMSO-d 6 solution was examined by pulse-field-gradient spin-echo NMR based on the touched bead model.

A study of the dynamics of n-alkane in the rotator phase by using the pulse-field-gradient spin-echo 1H NMR method

1998 ◽  
Vol 283 (5-6) ◽  
pp. 333-336 ◽  
Author(s):  
Hideyuki Yamakawa ◽  
Shingo Matsukawa ◽  
Hiromichi Kurosu ◽  
Shigeki Kuroki ◽  
Isao Ando
Keyword(s):  
Field Gradient ◽  
1H Nmr ◽  
Spin Echo ◽  
Pulse Field ◽  
Pulse Field Gradient ◽  
Nmr Method ◽  
Rotator Phase

c , T-Dependence of the Self Diffusion in Concentrated Aqueous Sucrose Solutions

1994 ◽  
Vol 49 (3-4) ◽  
pp. 258-264 ◽  
Author(s):  
D. Girlich ◽  
H.-D. Lüdemann ◽  
C. Buttersack ◽  
K. Buchholz
Keyword(s):  
Field Gradient ◽  
Concentration Dependence ◽  
Diffusion Coefficients ◽  
The Self ◽  
Water Molecules ◽  
Pulsed Field Gradient Nmr ◽  
Pulsed Field ◽  
Self Diffusion ◽  
Sucrose Solutions ◽  
Wide Range

The self diffusion coefficients D of the water molecules and of sucrose have been determined by the pulsed field gradient NMR technique over a wide range of temperatures and concentrations (cmax: 70% w/w suc.). All temperature dependencies can be fitted to a Vogel- Tammann-Fulcher equation. The isothermic concentration dependence of D for the sucrose is given by a simple exponential concentration dependence

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