The Challenges and Opportunities of High-Spin Mn(II) EPR and ENDOR [0.03%]
高自旋锰(II)的EPR和ENDOR面临的挑战与机遇
Peter E Doan,Alex Drena,Ajay Sharma et al.
Peter E Doan et al.
We examine the Electron Paramagnetic Resonance (EPR) and Electron-Nuclear Double Resonance (ENDOR) spectroscopy of three quite distinct high-spin Mn(II) systems and describe experimental techniques and methods of analysis that are useful in...
Comparison of 10 mm and 30 mm Diameter Surface Coil Resonators for 1 GHz EPR [0.03%]
比较1GHz EPR的10mm和30mm直径表面线圈谐振器
Georgina Amassah,Tanden A Hovey,George A Rinard et al.
Georgina Amassah et al.
Two surface coil resonators were tested at 1.0 GHz as alternatives to volume resonators that fully contain the sample; a 10 mm diameter coil with Q of 61 and efficiency of 0.044 mT/√W at ~2.5 mm above the coil and a 30 mm diameter coil wit...
Robustness and Sensitivity of Gd(III)-Gd(III) Double Electron-Electron Resonance (DEER) Measurements: Comparative Study of High-Frequency EPR Spectrometer Designs and Spin Label Variants [0.03%]
钆(III)-钆(III)双电子-电子共振(DEER)测量的稳健性和灵敏度：高频率EPR光谱仪设计和自旋标记变异体的比较研究
Elena M Mocanu,Yasmin Ben-Ishay,Lydia Topping et al.
Elena M Mocanu et al.
In this paper, we explore the robustness and sensitivity of Gd(III)-Gd(III) double electron-electron resonance (DEER) distance measurements in proteins for different spectrometer designs and three spin labels. To do this a protein was label...
Electron spin relaxation of SO2 - and SO3 - radicals in solid Na2S2O4, Na2S2O5, and K2S2O5 [0.03%]
SO₂⁻和SO₃⁻自由基在固态Na₂S₂O₄，Na₂S₂O₅以及K₂S₂O₅中的电子自旋弛豫
Georgina Amassah,Deborah G Mitchell,Tanden A Hovey et al.
Georgina Amassah et al.
Electron spin relaxation times are reported for the SO2 - radical in solid Na2S2O4 and K2S2O5, and the SO3 - radicals in Na2S2O5, and K2S2O5. Echo envelope modulation was observed for the radicals in the Na+ salts and characterized by HYSCO...
Kev M Salikhov,Sandra S Eaton,Gareth R Eaton
Kev M Salikhov
We celebrate 80 years of EPR with a special issue of Applied Magnetic Resonance featuring both reviews and regular research articles. The focus is new opportunities for application of EPR and new directions for development of EPR. This intr...
Sandra S Eaton,Gareth R Eaton
Sandra S Eaton
It has been known from the pioneering and approximately simultaneous work of Freed and Frankel, Hausser and Deguchi (1959 -1960) that collisions with O2 in fluid solutions broaden the electron paramagnetic resonance (EPR) spectra of free ra...
X-band electron spin relaxation times for four aromatic radicals in fluid solution and comparison with other organic radicals [0.03%]
芳香族自由基在流体溶液中的X波段电子自旋弛豫时间及与其他有机自由基的比较
Virginia Meyer,Sandra S Eaton,Gareth R Eaton
Virginia Meyer
X-band electron spin relaxation times of BDPA (1:1 α,γ-bisdiphenylene-β-phenylallyl), galvinoxyl 2,6-di-tert-butyl-α-(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-p-tolyloxy, DPPH (2,2-diphenyl-1-picrylhydrazyl) and thianthrene ...
Sandra S Eaton,Debbie G Mitchell,Gareth R Eaton
Sandra S Eaton
The blue color that has made lazurite (lapis lazuli) a prized mineral is due to the same S3 - radical that is in synthetic ultramarine blue (UMB), which has been proposed as a CW EPR standard. Continuous wave and pulsed EPR spectra and rela...
Differentiating Unimodal and Multimodal Distributions in Pulsed Dipolar Spectroscopy Using Wavelet Transforms [0.03%]
利用小波变换区分脉冲偶极光谱中的单峰和多峰分布
Aritro Sinha Roy,Jack H Freed,Madhur Srivastava
Aritro Sinha Roy
Site directed spin labeling has enabled protein structure determination using electron spin resonance (ESR) pulsed dipolar spectroscopy (PDS). Small details in a distance distribution can be key to understanding important protein structure-...
Temperature-Dependent Rotation of Protonated Methyl Groups in Otherwise Deuterated Proteins Modulates DEER Distance Distributions [0.03%]
温度依赖的质子化甲基基团旋转调节了DEER距离分布
Thomas Schmidt,Valentyn Stadnytskyi
Thomas Schmidt
Temperature-dependent DEER effects are observed as a function of methyl rotation by either leucine- or nitroxide-specific protonated methyl groups in an otherwise deuterated background. Both species induce a site-specific enhancement in the...