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Showing 1 to 6 of 6 entries
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Proton spin-spin relaxation study of hydration of a model nanopore.

Solid state nuclear magnetic resonance

Troyer WE, Holly R, Peemoeller H, Pintar MM.
PMID: 16288854
Solid State Nucl Magn Reson. 2005 Sep;28(2):238-43. doi: 10.1016/j.ssnmr.2005.10.003. Epub 2005 Nov 08.

The hydration pattern of controlled pore glass, with pore diameter of 237 A, was investigated using nuclear magnetic resonance. Water proton spin-spin relaxation decay curves were monitored and modeled as two-component exponential decays as a function of hydration. The...

High-resolution inelastic neutron scattering from water in mesoporous silica.

Physical review. E, Statistical, nonlinear, and soft matter physics

Mansour F, Dimeo RM, Peemoeller H.
PMID: 12443199
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Oct;66(4):041307. doi: 10.1103/PhysRevE.66.041307. Epub 2002 Oct 22.

High-resolution inelastic neutron scattering measurements of the molecular dynamics of water confined to a porous host, the molecular sieve known as MCM-41, which has a hexagonal array of parallel pores with average pore diameter of 27 A, are reported....

Temperature and hydration dependence of proton MAS NMR spectra in MCM-41: model based on motion induced chemical shift averaging.

Solid state nuclear magnetic resonance

Walia J, Crone J, Liang J, Niknam M, Lemaire C, Terry Thompson R, Peemoeller H.
PMID: 23266020
Solid State Nucl Magn Reson. 2013 Feb;49:26-32. doi: 10.1016/j.ssnmr.2012.11.003. Epub 2012 Nov 27.

The proton MAS NMR spectra in MCM-41 at low hydration levels (less than hydration amounting to one water molecule per surface hydroxyl group) show complex proton resonance peak structures, with hydroxyl proton resonances seen in dry MCM-41 disappearing as...

Intrinsic proton relaxation parameters of hydrated polyglycine from two-dimensional time domain NMR.

Biopolymers

Peemoeller H, MacMillan MB, Weglarz WP, Schreiner LJ, Thompson RT.
PMID: 10508965
Biopolymers. 1999 Nov;50(6):630-40. doi: 10.1002/(SICI)1097-0282(199911)50:6<630::AID-BIP7>3.0.CO;2-K.

Proton two-dimensional time domain nmr involving T(1), T(1rho), T(1D), and T(2) measurements was applied to hydrated polyglycine powders. The results were analyzed for magnetization exchange and found to be consistent with a general three-site (glycine-water-glycine) exchange model. The intrinsic...

¹H Nuclear Magnetic Resonance of Lodgepole Pine Wood Chips Affected by the Mountain Pine Beetle.

Materials (Basel, Switzerland)

Todoruk TM, Hartley ID, Teymoori R, Liang J, Peemoeller H.
PMID: 28879981
Materials (Basel). 2010 Dec 31;4(1):131-140. doi: 10.3390/ma4010131.

In this study, wood-water interactions of mountain pine beetle affected lodgepole pine were found to vary with time since death. Based on an analysis of magnetization components and spin-spin relaxation times from 1H NMR, it was determined that the...

Multi-Lorentzian representation of deuterium spectrum to study water spin magnetization exchange in MCM-41.

Solid state nuclear magnetic resonance

Hassan J, Reardon E, Peemoeller H.
PMID: 22647224
Solid State Nucl Magn Reson. 2012 Jul-Sep;45:23-9. doi: 10.1016/j.ssnmr.2012.04.004. Epub 2012 May 07.

Water behavior on the pore surface of nano-silica MCM-41, at a hydration level corresponding to one water molecule per OH group, is studied using (2)H NMR spectra in the temperature range 213 to 313 K. In an earlier study...

Showing 1 to 6 of 6 entries