Results 11 to 20 of about 7,808 (189)

Human Serum Albumin Labelled with Sterically-Hindered Nitroxides as Potential MRI Contrast Agents

Molecules, 2020
Four albumin-nitroxide conjugates were prepared and tested as metal-free organic radical contrast agents (ORCAs) for magnetic resonance imaging (MRI).
Sergey Dobrynin, Sergei Kutseikin, Denis Morozov, Olesya Krumkacheva, Anna Spitsyna, Yurii Gatilov, Vladimir Silnikov, Goran Angelovski, Michael K. Bowman, Igor Kirilyuk, Alexey Chubarov   +10 more
doaj   +1 more source

Single-Component Charge-Transfer Crystals Based on Spin-Carrying TCNQ (7,7,8,8-Tetracyanoquinodimethane) Derivatives

Crystals, 2012
Three TCNQ derivatives carrying nitroxide radicals (3a–3c) were prepared and were found to form single-component charge-transfer (CT) complexes by self-assembly, in which outer nitroxide groups of a couple of different molecules work as donors and the ...
Shin’ichi Nakatsuji, Jun-ichi Yamada, Hiroki Akutsu, Hideto Suzuki   +3 more
doaj   +1 more source

4-Dialkylamino-2,5-dihydroimidazol-1-oxyls with Functional Groups at the Position 2 and at the Exocyclic Nitrogen: The pH-Sensitive Spin Labels

Gels, 2021
Local acidity and electrostatic interactions are associated both with catalytic properties and the adsorption activity of various materials, and with the vital functions of biomolecules.
Dmitrii G. Trofimov, Yuri I. Glazachev, Artem A. Gorodetsky, Denis A. Komarov, Tatyana V. Rybalova, Igor A. Kirilyuk   +5 more
doaj   +1 more source

Effects of Spiro-Cyclohexane Substitution of Nitroxyl Biradicals on Dynamic Nuclear Polarization

Molecules, 2022
Spiro-substituted nitroxyl biradicals are widely used as reagents for dynamic nuclear polarization (DNP), which is especially important for biopolymer research. The main criterion for their applicability as polarizing agents is the value of the spin–spin
Nargiz B. Asanbaeva, Larisa Yu. Gurskaya, Yuliya F. Polienko, Tatyana V. Rybalova, Maxim S. Kazantsev, Alexey A. Dmitriev, Nina P. Gritsan, Nadia Haro-Mares, Torsten Gutmann, Gerd Buntkowsky, Evgeny V. Tretyakov, Elena G. Bagryanskaya   +11 more
doaj   +1 more source

Nitroxides as Radiation Protectors [PDF]

Military Medicine, 2002
Selective protection of normal tissues from the damaging effects of ionizing radiation is an important objective in cancer treatment research. Likewise, radioprotective agents may be useful in protecting the human population in the event of radiation-related accidents or military conflicts.
James B, Mitchell, Murali C, Krishna
openaire   +2 more sources

N-Vinylation of Imidazole and Benzimidazole with a Paramagnetic Vinyl Bromide

Molbank, 2018
An N-vinylation of imidazole and benzimidazole with a paramagnetic vinyl bromide was investigated. Among the tested procedures, Pd-catalyzed reaction was the most powerful one.
Györgyi Úr, Gergely Gulyás Fekete, Kálmán Hideg, Tamás Kálai   +3 more
doaj   +1 more source

CF₃-Bis-TEMPO-Vis: New Visible Light Active Bis-Benzimidazolequinone Alkoxyamine

Molbank, 2021
Alkoxyamines of TEMPO usually dissociate thermally at >100 °C; however, room temperature homolysis, activated by visible light, occurs with benzimidazolequinone derivatives.
Patrick Kielty, Pau Farràs, Dennis A. Smith, Fawaz Aldabbagh   +3 more
doaj   +1 more source

Profluorescent Fluoroquinolone-Nitroxides for Investigating Antibiotic–Bacterial Interactions

Antibiotics, 2019
Fluorescent probes are widely used for imaging and measuring dynamic processes in living cells. Fluorescent antibiotics are valuable tools for examining antibiotic–bacterial interactions, antimicrobial resistance and elucidating antibiotic modes of
Anthony D. Verderosa, Rabeb Dhouib, Kathryn E. Fairfull-Smith, Makrina Totsika   +3 more
doaj   +1 more source

2-(Fluoromethyl)-4,7-dimethoxy-1-methyl-1H-benzimidazole

Molbank, 2020
Selectfluor (1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)) substitutes the TEMPO free radical with fluorine on 4,7-dimethoxy-1-methyl-2-{[(2,2,6,6-tetramethylpiperidin-1-yl)oxy]methyl}-1H-benzimidazole to give the title
Patrick Kielty, Pau Farràs, Dennis A. Smith, Fawaz Aldabbagh   +3 more
doaj   +1 more source

A New Method for the Synthesis of Heterospin Complexes

Crystals, 2015
The interaction of binuclear Co(II) pivalate [Сo2(H2O)Piv4(HPiv)4] with nitronyl nitroxide HL1 (2-(2-hydroxy-5-nitrophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl) in organic solvents led to the formation of a pentanuclear heterospin
Victor Ovcharenko, Olga Kuznetsova, Elena Fursova, Gаlinа Romаnenko, Artem Bogomyakov   +4 more
doaj   +1 more source