Results 11 to 20 of about 43,459 (261)

Pulsed Electron‐Nuclear Double Resonance in the Fourier Regime

ChemPhysChem, 2022
AbstractNuclear magnetic resonance (NMR) spectroscopy provides atomic‐level molecular structural information. However, in molecules containing unpaired electron spins, NMR signals are difficult to measure directly. In such cases, data is obtained using the electron‐nuclear double resonance (ENDOR) method, where nuclei are detected through their ...
Nir Dayan, Yaron Artzi, Moamen Jbara, David Cristea, Aharon Blank   +4 more
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High-resolution nanoscale NMR for arbitrary magnetic fields

Communications Physics, 2023
Nitrogen vacancy (NV) centers are a major platform for the detection of nuclear magnetic resonance (NMR) signals at the nanoscale. To overcome the intrinsic electron spin lifetime limit in spectral resolution, a heterodyne detection approach is widely ...
Jonas Meinel, MinSik Kwon, Rouven Maier, Durga Dasari, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Vadim Vorobyov, Jörg Wrachtrup   +8 more
doaj   +1 more source

Structures of Impurity Defects in Lithium Niobate and Tantalate Derived from Electron Paramagnetic and Electron Nuclear Double Resonance Data

Crystals, 2021
Point intrinsic and extrinsic defects, especially paramagnetic ions of transition metals and rare-earth elements, have essential influence on properties of lithium niobate, LN and tantalate, LT, and often determine their suitability for numerous ...
Valentin G. Grachev, Galina I. Malovichko   +1 more
doaj   +1 more source

Site-selective generation of lanthanoid binding sites on proteins using 4-fluoro-2,6-dicyanopyridine [PDF]

Magnetic Resonance, 2022
The paramagnetism of a lanthanoid tag site-specifically installed on a protein provides a rich source of structural information accessible by nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopy.
S. Mekkattu Tharayil, M. C. Mahawaththa, A. Feintuch, A. Maleckis, S. Ullrich, R. Morewood, M. J. Maxwell, T. Huber, C. Nitsche, D. Goldfarb, G. Otting   +10 more
doaj   +1 more source

Electron-nuclear-double-resonance studies of spinach plastocyanin [PDF]

Biochemical Journal, 1983
Electron-nuclear-double-resonance (ENDOR) studies of spinach plastocyanin revealed that 14N-hyperfine couplings from its two co-ordinated imidazole groups are characteristically small in anisotropy and relatively high in ENDOR frequencies and that the two imidazole groups are magnetically equivalent.
H, Yokoi, Y, Ohba, T, Takabe
openaire   +2 more sources

Electron-nuclear double resonance in melanins

Biophysical Journal, 1976
Electron-nuclear double resonance (ENDOR) signals from matrix protons interacting with the stable free radicals of "A"- and "B"-type melanins have been observed as a function of pH. In all samples the single line is similar in width and unusually narrow.
Sarna, T., Mailer, C., Hyde, J.S., Swartz, H.M., Hoffman, B.M.   +4 more
openaire   +2 more sources

Electron spin dynamics during microwave pulses studied by 94 GHz chirp and phase-modulated EPR experiments [PDF]

Magnetic Resonance
Electron spin dynamics during microwave irradiation are of increasing interest in electron paramagnetic resonance (EPR) spectroscopy, as locking electron spins into a dressed state finds applications in EPR and dynamic nuclear polarization (DNP ...
M. Lenjer, M. Lenjer, N. Wili, F. Hecker, F. Hecker, M. Bennati, M. Bennati   +6 more
doaj   +1 more source

Integrated 60Co and electron accelerator platform for irradiation effect and irradiation processing tests

Fushe yanjiu yu fushe gongyi xuebao, 2022
Irradiation technology has unique advantages and an invaluable role in nuclear energy, sterilization, and functional materials development. This paper introduces an integrated 60Co and electron accelerator platform for irradiation effect and irradiation ...
JIANG Haiqing, HE Weirong, CAI Ximing, LI Jihao, HU Jiangtao, SHEN Rongfang, HUANG Weibing, LI Linfan   +7 more
doaj   +1 more source

Occurrence characteristics and influencing factors of movable fluid in the medium- and low-permeability reservoirs of the Es32+3 submember of the Gao3102 fault block in the Gaoshangpu Oilfield

地质科技通报, 2023
Objective In order to clarify the occurrence characteristics of movable fluids in medium- and low-permeability reservoirs, so as to better guide the increase in oil reserves and production in the oilfield.
Ruxian Chen, Jiagen Hou
doaj   +1 more source

Cross‐Polarization Electron‐Nuclear Double Resonance Spectroscopy

ChemPhysChem, 2015
AbstractMagnetic nuclei in the proximity of a paramagnetic center can be polarized through electron‐nuclear cross‐polarization and detected in electron‐nuclear double resonance (ENDOR) spectroscopy. This principle is demonstrated in a single‐crystal model sample as well as on a protein, the β2 subunit of E.coli ribonucleotide reductase (RNR), which ...
Rizzato, R., Bennati, M.
openaire   +4 more sources