Results 21 to 30 of about 225,086 (287)

Electron paramagnetic resonance microscopy using spins in diamond under ambient conditions

Nature Communications, 2017
Magnetic resonance spectroscopy is one of the most important tools in chemical and bio-medical research. However, sensitivity limitations typically restrict imaging resolution to ~ 10 µm. Here we bring quantum control to the detection of chemical systems
D. Simpson, R. G. Ryan, L. T. Hall, E. Panchenko, S. Drew, S. Petrou, P. Donnelly, P. Mulvaney, L. Hollenberg   +8 more
semanticscholar   +1 more source

Nanographene oxide-methylene blue as phototherapies platform for breast tumor ablation and metastasis prevention in a syngeneic orthotopic murine model

Journal of Nanobiotechnology, 2018
Background In the photodynamic therapy (PDT), the photosensitizer absorbs light and transfers the energy of the excited state to the oxygen in the cell environment producing reactive oxygen species (ROS), that in its turn, may cause cell damage.
Mayara Simonelly Costa dos Santos, Ana Luisa Gouvêa, Ludmilla David de Moura, Leonardo Giordano Paterno, Paulo Eduardo Narcizo de Souza, Ana Paula Bastos, Emanuel Adelino Medeiros Damasceno, Fabiane Hiratsuka Veiga-Souza, Ricardo Bentes de Azevedo, Sônia Nair Báo   +9 more
doaj   +1 more source

Exchange mechanism for electron paramagnetic resonance of individual adatoms [PDF]

, 2016
J.L.L. and J.F.R. acknowledge financial support by Marie-Curie-ITN 607904 SPINOGRAPH and COMPETE 2020-FCT Portugal PTDC/FIS-N AN/4662/2014 (016656). J.F.R. acknowledges financial support by MEC-Spain (FIS2013-47328-C2-2-P and MAT2016-78625-C2).
J. Lado, A. Ferrón, J. Fernández-Rossier   +2 more
semanticscholar   +1 more source

Electron paramagnetic resonance of VN–VGa complex in BGaN

APL Materials, 2023
A metastable photoinduced electron paramagnetic resonance (EPR) signal at low temperatures is reported for GaN alloyed with boron (i.e., BxGa1−xN) epitaxial layers grown at temperatures ranging from 840 to 1090° C. An isotropic EPR line with g = 2.004 is
J. Kierdaszuk, E. B. Możdżynska, A. Drabińska, A. Wysmolek, J. M. Baranowski   +4 more
doaj   +1 more source

Retrospective dosimetry using fingernail electron paramagnetic resonance response

Nuclear Engineering and Technology, 2018
Human fingernails were used to estimate the radiation dose via electron paramagnetic resonance measurements of radiation-induced radicals. The limiting factors in this research were mechanically induced electron paramagnetic resonance signals due to the ...
Abbas Noori, Mojtaba Mostajaboddavati, Farhood Ziaie   +2 more
doaj   +1 more source

Electron Paramagnetic Resonance Spectroscopy

CHIMIA, 2001
A survey of the activities of the EPR group at ETH is given. The different research areas are discussed briefly and a particular project is highlighted.
Carlos Calle, Sabine Van Doorslaer, Stefan Stoll, Zoltan Mádi, Lorenz Liesum, Walter Lammler, Moritz Kälin, Jeffrey Harmer, Willi Groth, Igor Gromov, Josef Granwehr, Jörg Forrer, Cinzia Finazzo, Rüdiger-A. Eichel, Arthur Schweiger   +14 more
doaj   +2 more sources

Thermostimulated crystal structure transformation of the polymineral clay submicron particles

Cerâmica, 2022
Changes in the structure of phyllosilicate microparticles of submicron fractions of polymineral clay with an average size of 290 nm, as well as changes in the positions of impurity ions of transition metals in the crystal lattice, were studied by X-ray ...
A. G. Chetverikova, O. N. Kanygina, V. N. Makarov, V. L. Berdinskiy, M. M. Seregin   +4 more
doaj   +1 more source

Synthesis and characterization of paramagnetic isotropic glycine manganese chloride single crystal with various dopant concentrations

Results in Physics, 2019
Single crystals of α and γ glycine manganese chloride (GMC) were prepared using four dopant concentrations of MnCl2 in the molecular formula (C2H5NO2)1−x(MnCl2)x, where [x = 0.005, 0.02, 0.04, 0.05]. The crystals showed: nonlinear optical (NLO) activity,
Ollaa M. Mailoud, Adly H. Elsayed, H. Abu El Fetouh, A.H. Abu ELazm   +3 more
doaj   +1 more source

Electron paramagnetic resonance of sonicated powder suspensions in organic solvents

Ultrasonics Sonochemistry, 2021
The chemical effects of the acoustic cavitation generated by ultrasound translates into the production of highly reactive radicals. Acoustic cavitation is widely explored in aqueous solutions but it remains poorly studied in organic liquids and in ...
Héla Laajimi, Michela Mattia, Robin S. Stein, Claudia L. Bianchi, Daria C. Boffito   +4 more
doaj   +1 more source

Participation of NO-synthase in Control of Nitric Oxide Level in Rat Hippocampus after Modelling of Ischaemic and Haemorrhagic Insult [PDF]

BioDiscovery, 2017
Electron paramagnetic resonance (EPR) was used as a method for recording the content of the nitric oxide (NO) in hippocampal tissues of intact rats and rats after modelling of ischaemic and haemorrhagic stroke.
Khalil L. Gainutdinov, Svetlana G. Pashkevich, Vyatcheslav V. Andrianov, Guzel G. Yafarova, Margarita O. Dosina, Tatiana Kh. Bogodvid, Julia P. Stukach, Dinara I. Silant'eva, Aleksandra S. Zamaro , Timur V. Sushko, Vladimir Kulchitsky   +10 more
doaj   +3 more sources