TY - JOUR
T1 - Magnetization transfer in a partly deuterated lyotropic liquid crystal by single- and dual-frequency RF irradiations
AU - Lee, Jae Seung
AU - Regatte, Ravinder R.
AU - Jerschow, Alexej
N1 - Funding Information:
This work was supported in part by the National Institutes of Health (grants K25AR06029, R01EB016045, R01AR060238, R01AR067156, and R01AR068966). The experiments were performed in the Shared Instrument Facility of the Department of Chemistry, New York University, supported by the US National Science Foundation under grant number CHE0116222.
Publisher Copyright:
© 2017 Elsevier Inc.
PY - 2017/8
Y1 - 2017/8
N2 - The mechanism of magnetization transfer (MT) in a lyotropic liquid crystal made of sodium dodecyl sulfate, decanol, and water molecules is investigated by using deuterated molecules and single- and dual-frequency RF irradiations. The resulting Z-spectra suggest that the decanol molecules are mainly responsible for the MT effects in this system, through proton exchange to water. This is further confirmed by monitoring the relaxation of dipolar order, which allows one to estimate the transfer rate of magnetization from decanol to water. The potential benefits of using dual-frequency RF irradiation for inducing MT effects are explored through numerical solutions to a MT model based on Provotorov's partial saturation theory.
AB - The mechanism of magnetization transfer (MT) in a lyotropic liquid crystal made of sodium dodecyl sulfate, decanol, and water molecules is investigated by using deuterated molecules and single- and dual-frequency RF irradiations. The resulting Z-spectra suggest that the decanol molecules are mainly responsible for the MT effects in this system, through proton exchange to water. This is further confirmed by monitoring the relaxation of dipolar order, which allows one to estimate the transfer rate of magnetization from decanol to water. The potential benefits of using dual-frequency RF irradiation for inducing MT effects are explored through numerical solutions to a MT model based on Provotorov's partial saturation theory.
KW - Dipolar order
KW - Lyotropic liquid crystal
KW - Magnetization transfer
KW - Provotorov's partial saturation theory
KW - Uniform saturation
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U2 - 10.1016/j.jmr.2017.05.015
DO - 10.1016/j.jmr.2017.05.015
M3 - Article
C2 - 28595121
AN - SCOPUS:85020224259
SN - 1090-7807
VL - 281
SP - 141
EP - 150
JO - Journal of Magnetic Resonance
JF - Journal of Magnetic Resonance
ER -