The neurochemical profile quantified by in vivo(1)H NMR spectroscopy
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Delayed-acquisition methods, namely, echo and constant-time-acquisition approaches, allow a significant improvement in resolution in the proton solid state NMR spectra of surface organometallic catalysts such as [ syn-( SiO) Mo-( =NAr)( =(CHBu)-Bu-t)( (CH2 ...
New 2-dimensional NMR correlation methods are presented which allow one to obtain selected high-resoln. multiplets where all signals have pos. pure absorption peak shapes. The multiplets do not suffer from any cancellation effects, and their fine structure ...
Coherent and dissipative phenomena induced by transient adsorption of xenon-131 on a glass surface were studied by NMR spectroscopy. The authors report the results of multiple-quantum filtered expts. over a range of temps., covering different relaxation re ...
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In isotopically labeled macromols., it is possible to excite the signal of a selected proton by shuttling magnetization back and forth between the chosen proton and a heteronucleus such as 13C or 15N, using two-way doubly selective heteronuclear cross-pola ...
The extracellular domain of N-CAM contains five immunoglobulin-like (Ig) and two fibronectin type III-like domains and facilitates cell-cell binding through multiple, weak interdomain interactions. NMR spectroscopy indicated that the two N-terminal Ig-like ...
Magnetic resonance spectroscopy (MRS) measurements of the lactate methyl proton in rat brain C6 glioma tissue acquired in the presence of an off- resonance irradiation field, analyzed using coupled Bloch equation formalism assuming two spin pools, demonstr ...
A method was developed for measuring the rise and fall curves corresponding to selected peaks in NOESY spectrum. When applied to a std. two-dimensional NOESY spectrum, this technique gives result the resoln. of which is similar to that of the three-dimensi ...
Nuclear magnetic resonance spectroscopy (MRS) in low and medium magnetic fields yields well-resolved natural abundance proton and decoupled phosphorus spectra from small (1-10 cc) volumes of brain in vivo in minutes. With this tool, neurochemical research ...
Line broadening in high-resoln. NMR spectra caused by heteronuclear scalar coupling is described, and various adiabatic frequency-modulated decoupling schemes in high-resoln. NMR spectroscopy are compared. The CHRIP-95 decoupling scheme, which uses a linea ...
Proton-observed carbon-edited (POCE) NMR spectroscopy is commonly used to measure 13C labeling with higher sensitivity compared to direct 13C NMR spectroscopy, at the expense of spectral resolution. For weakly coupled first-order spin systems, the multiple ...
