NMR diffusion and relaxation studies of the encapsulation of fragrances by amphiphilic multiarm star block copolymers
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H-1 and C-13 nuclear magnetic resonance (NMR) relaxation studies of thiophenol-capped CdS nanocrystals are presented. The transverse and longitudinal relaxation times were investigated as a function of nanocrystal radius, and the transverse relaxation time ...
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The mobility of 15N labeled proteins can be characterized by measuring the cross-correlation rates dN,NI that govern the conversion of Zeeman order Nz of an amide 15N nucleus into longitudinal two-spin order 2NzIz involving the amide 15N and 1H nuclei. Thi ...
Effective encapsulation of small, volatile, weakly water-soluble molecules such as flavors and fragrances is necessary to protect them from degradation, to increase their lifetime, and to improve their water dispersion and fixation depending on the substra ...
The effect of nitrogen-15 proton-driven spin diffusion on quantitative N-15 T-1 measurements in solid proteins is investigated, and the impact on the measurement of dynamic parameters is assessed. A simple model of exchange between neighboring nitrogens is ...
Internal motions in proteins, such as oscillations of internuclear vectors u(NiHiN) of amide bonds about their equil. position, can be characterized by a local order parameter. This dynamic parameter can be detd. exptl. by measuring the longitudinal and tr ...
