Azaadamantyl nitroxide spin label: complexation with β-cyclodextrin and electron spin relaxation
نویسندگان
چکیده
منابع مشابه
A nitroxide-maleimide spin label.
was chemically bonded to poly-L-lysine and to bovine serum albumin (BSA) and showed a paramagnetic resonance spectrum that was sensitive to known structural changes in these molecules, such as those produced by changes in pH.2 This nitroxide-isocyanate is unfortunately not an ideal spin-labeling reagent since it is unstable and thus difficult to purify, and moreover the isocyanate group is rapi...
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Pulsed electron-electron double resonance (PELDOR) coupled with site-directed spin labeling is a powerful technique for the elucidation of protein or nucleic acid, macromolecular structure and interactions. The intrinsic high sensitivity of electron paramagnetic resonance enables measurement on small quantities of bio-macromolecules, however short relaxation times impose a limit on the sensitiv...
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The magnetisation and electron spin resonance (ESR) spectrum of two specimens of tetrahedral amorphous carbon (ta-C), deposited from a filtered cathodic arc, were measured over a wide temperature range. The magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. The superparamagnetic contribution resembled that recently found in carbon prepared from ...
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Double resonance is a well known development of magnetic resonance in which one resonant transition of a system is excited while simultaneously a different transition is monitored. Since the first works of the early fifties, double resonance has been widely applied in NMR and in EPR [1]. Only recently, double resonance has been used for imaging [2] and for in vivo applications [3]. The possibil...
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A new isoindoline-derived benzimidazole nitroxide spin label, ImUm, was synthesized and incorporated into RNA oligoribonucleotides. ImUm is the first example of a conformationally unambiguous spin label for RNA, in which the nitroxide N-O bond lies on the same axis as the single bond used to attach the rigid isoindoline-based spin label to a uridine base. This results in minimal displacement of...
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ژورنال
عنوان ژورنال: Free Radical Research
سال: 2017
ISSN: 1071-5762,1029-2470
DOI: 10.1080/10715762.2017.1384954