Dynamic Nuclear Polarization
Hydroxyapatites: Key Structural Questions and Answers from Dynamic Nuclear Polarization
... ABSTRACT: We demonstrate that NMR/DNP (Dynamic Nuclear Polarization) allows an unprecedented descrip- tion of carbonate substituted hydroxyapatite (CHAp). Key structural questions related to ...
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Design of a 460 GHz Second Harmonic Gyrotron Oscillator for use in Dynamic Nuclear Polarization
... by dynamic nuclear polarization (DNP) [15, 16, 17, 18, 19, 20, ...small nuclear Zeeman energy splittings and correspondingly small bulk magnetization at thermal equilibrium, NMR spectroscopy ...
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Application and methodology of dissolution dynamic nuclear polarization in physical, chemical and biological contexts
... *Corresponding author: dennis.kurzbach@univie.ac.at Abstract Dissolution dynamic nuclear polarization (d-DNP) is a versatile method to enhance nuclear magnetic reso- nance (NMR) spectroscopy. ...
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Exchange interaction-driven dynamic nuclear polarization in Mn-doped InGaAs/GaAs quantum dots
... ± polarization. III. SPIN POLARIZATION IN MAGNETIC FIELD In undoped QDs, exciting an X + trion with circularly polarized light offers a direct means to investigate the hyperfine interaction with the nuclei ...
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De novo prediction of cross-effect efficiency for magic angle spinning dynamic nuclear polarization
... Introduction Dynamic nuclear polarization (DNP) attracts large interest because it can provide impressive sensitivity gains to solid-state Nuclear Magnetic Resonance (ssNMR) ...intrinsic ...
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A CW 250 GHz Gyrotron Oscillator for use in Dynamic Nuclear Polarization
... gyrotron-driven dynamic nuclear polarization has the potential to be a valuable technique at high magnetic fields with demonstrated signal enhancements of 40 or ...
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Biosilica-Entrapped Enzymes Studied by Using Dynamic Nuclear-Polarization-Enhanced High-Field NMR Spectroscopy
... sensitivity, dynamic nuclear polarization (DNP) may be ...electron polarization of a paramagnetic species is transferred to neighbouring nuclei via microwave ...and nuclear relaxation ...
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Cryogenic sample exchange NMR probe for magic angle spinning dynamic nuclear polarization
... (MAS) dynamic nuclear polarization (DNP) experiments by reducing the time required to change samples and by improving long-term instrument ...
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Interfacial Ca<sup>2+</sup> environments in nanocrystalline apatites revealed by dynamic nuclear polarization enhanced <sup>43</sup>Ca NMR spectroscopy
... with dynamic nuclear ...from dynamic nuclear polarization, not only could calcium-43 NMR spectra be obtained easily, but natural isotopic abundance 2D correlation experiments could be ...
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Dynamic Nuclear Polarization Efficiency Increased by Very Fast Magic Angle Spinning
... ABSTRACT: Dynamic nuclear polarization (DNP) has recently emerged as a tool to enhance the sensitivity of solid-state NMR ...for polarization transfer which is capable of explaining the ...
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Dynamic Nuclear Polarization Opens New Perspectives for NMR Spectroscopy in Analytical Chemistry
... producing nuclear spin polarization far beyond thermal equilibrium values and thus increasing the sensitivity by orders of magnitude, resulting in dramatic signal ...induced polarization (PHIP) 5 , ...
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Amyloid fibril structure of peptides and proteins by magic angle spinning NMR spectroscopy and dynamic nuclear polarization
... While some residues in the GNNQQNY crystals exhibit much larger line widths and chemical shift changes in the DNP experiments performed at low temperature, the amy[r] ...
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Natural Isotopic Abundance 13C and 15N Multidimensional Solid-State NMR Enabled by Dynamic Nuclear Polarization
... MAS-DNP polarization agent was incorporated with the sample using spray drying or hot-melt extrusion, both of which are techniques to produce amorphous solid dispersions in the pharmaceutical ...the ...
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Atomic-level structure determination of organic assemblies by dynamic nuclear polarization enhanced solid-state NMR
... each polarization buildup ...of polarization buildup curves becomes very ambiguous, especially when several contributing dis- tances are of comparable ...
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Determining Cholesterol Binding to Membrane Proteins by Cholesterol 13C Labeling in Yeast and Dynamic Nuclear Polarization NMR
... 13 C- 13 C correlation spectra measured at 250 K show relatively low sensitivity and no clear intramolecular long-range cross peaks for cholesterol are observed. For example, the cholesterol Ch3 cross section shows no ...
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Design of a 460 GHz second harmonic gyrotron oscillator for use in dynamic nuclear polarization
... Other millimeter wave sources, such as the EIO (extended interaction oscillator) or BWO (backward wave oscillator) rely on fragile slow-wave structures to generate m[r] ...
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Design, synthesis, and characterization of conjugated polymers and functional paramagnetic materials for dynamic nuclear polarization
... tracted with diethyl ether (2 x 10 mL) and the combined organic layers were washed several times with water and once with brine, before being dried over sodium sulfate[r] ...
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A 250 GHz gyrotron with a 3 GHz tuning bandwidth for dynamic nuclear polarization
... Schematic (a) and photograph (b) of the 250 GHz tunable gyrotron oscillator. The electron beam is launched from the electron gun and is focused by the magnetic field gradient, which can [r] ...
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Vertical Beam Polarization at MAMI
... 6.1. False asymmetry estimate of Møller polarimeter measurements Performing measurements with the Møller polarime- ter with an unpolarized target can be used to estimate false asymmetries, since the expected asymmetry is ...
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Overview on nuclear corrosion - Corrosion in the nuclear cycle
... This model is under implantation in the nuclear waste simulations codes C. Bataillon & al. , Elect. Acta 55 (2010) 4451-4467 C. Bataillon & al. , J. Comput. Physics 231 (2012) 6213-6231 MODELLING & ...
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