Results 21 to 30 of about 34,974 (242)

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

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

Deciphering mechanism of excited state reactivity by spectroscopic methods

Journal of Photochemistry and Photobiology, 2023
The Feature highlights Electron Paramagnetic Resonance (EPR) spectroscopy as an indispensable tool to understand the excited state reactivity of organic molecules.
Sarvar Aminovich Rakhimov, Malcolm D.E. Forbes, Jayaraman Sivaguru   +2 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Pushing the sensitivity boundaries of X-band EPR cryoprobe using a fast microwave switch

Journal of Magnetic Resonance Open
We present a new design of an X-band EPR cryoprobe based on a fast microwave switch and a cryogenic low-noise microwave amplifier that are placed close to the sample in the same cryostat.
Uršulė Tarvydytė, Vidmantas Kalendra, Gediminas Usevičius, James O’Sullivan, Adam Brookfield, Alice M. Bowen, Jūras Banys, John J.L. Morton, Mantas Šimėnas   +8 more
doaj   +1 more source

Electron Paramagnetic Resonance Investigation of Radiation Effect on Certain Types of Drug Powders

Cumhuriyet Science Journal, 2018
In this study, gamma rays were applied to the sulfadimethoxine, pyrazinamide, and chloramphenicol in the dose range of 1-15 kilogray, in order todetect radiosensitivity of paramagnetic species, which are formed afterirradiation by electron paramagnetic ...
Kerem Sütçü, Şemsettin Osmanoğlu
doaj   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

Advanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang, Jintao Dong, Xiahe Chen, Xiyang Wang, Tiange Wei, Yue Zhu, Tai‐Sing Wu, Yun‐Fang Yang, Shao‐Yuan Leu, Keke Wang, Yuanbin She, Huaming Li, Jiexiang Xia, Molly Meng‐Jung Li   +13 more
wiley   +1 more source