Mechanical ordering of pigment crystallites in oil binder: can electron paramagnetic resonance reveal the gesture of an artist? [0.03%]
颜料结晶体在油基介质中的排列顺序分析——电子顺磁共振能否揭示作者的用笔习惯？
Elise Garel,Laurent Binet,Didier Gourier
Elise Garel
Is it possible to reconstruct the gesture of an ancient artist applying a paint layer, considering that the orientation distribution of crystallites of an inorganic pigment remains definitively imprinted on the support after drying of the l...
An improved, time-efficient approach to extract accurate distance restraints for N MR2 structure calculation [0.03%]
一种改进的、高效的时间方法提取准确距离限制用于N个MR2结构计算
Aditya Pokharna,Felix Torres,Harindranath Kadavath et al.
Aditya Pokharna et al.
Exact nuclear Overhauser enhancement (eNOE) yields highly accurate, ensemble averaged 1H-1H distance restraints with an accuracy of up to 0.1 Å for the multi-state structure determination of proteins as well as for nuclear magnetic resonan...
Performance of the cross-polarization experiment in conditions of radiofrequency field inhomogeneity and slow to ultrafast magic angle spinning (MAS) [0.03%]
射频场不均匀条件下的交叉极化实验在慢到超快魔术角旋转(MAS)情况下的表现性能
Andrej Šmelko,Jan Blahut,Bernd Reif et al.
Andrej Šmelko et al.
In this paper, we provide an analytical description of the performance of the cross-polarization (CP) experiment, including linear ramps and adiabatic tangential sweeps, using effective Hamiltonians and simple rotations in 3D space. It is s...
Modelling and correcting the impact of RF pulses for continuous monitoring of hyperpolarized NMR [0.03%]
射频脉冲影响的建模与矫正在超极化核磁共振连续监测中的应用
Gevin von Witte,Matthias Ernst,Sebastian Kozerke
Gevin von Witte
Monitoring the build-up or decay of hyperpolarization in nuclear magnetic resonance requires radio-frequency (RF) pulses to generate observable nuclear magnetization. However, the pulses also lead to a depletion of the polarization and, thu...
Bernhard Blümich,Matthew Parziale,Matthew Augustine
Bernhard Blümich
The asymmetry of peak integrals in 2D relaxation maps of exchange between three sites indicates circular flow between the relaxation sites. This disagrees with the detailed balance according to which the exchange between any pair of sites m...
Cryogenic-compatible spherical rotors and stators for magic angle spinning dynamic nuclear polarization [0.03%]
用于魔角旋转动态核极化的低温兼容型球形转子和定子
Lauren E Price,Nicholas Alaniva,Marthe Millen et al.
Lauren E Price et al.
Cryogenic magic angle spinning (MAS) is a standard technique utilized for dynamic nuclear polarization (DNP) in solid-state nuclear magnetic resonance (NMR). Here we describe the optimization and implementation of a stator for cryogenic MAS...
Cell-free synthesis of proteins with selectively 13C-labelled methyl groups from inexpensive precursors [0.03%]
利用廉价前体选择性地对蛋白质细胞游离合成中的甲基进行13C标记
Damian Van Raad,Gottfried Otting,Thomas Huber
Damian Van Raad
The novel eCell system maintains the activity of the entire repertoire of metabolic Escherichia coli enzymes in cell-free protein synthesis. We show that this can be harnessed to produce proteins with selectively 13C-labelled amino acids fr...
Klaus-Peter Dinse,Tatsuhisa Kato,Shota Hasegawa et al.
Klaus-Peter Dinse et al.
Using pulsed electron paramagnetic resonance (EPR) techniques, the low-temperature magnetic properties of the NO radical being confined in two different modified open C60-derived cages are determined. It is found that the smallest principal...
Relaxation-induced dipolar exchange with recoupling (RIDER) distortions in CODEX experiments [0.03%]
CODEX实验中由松弛引起的偶极交换重新耦合(RIDER)失真
Alexey Krushelnitsky,Kay Saalwächter
Alexey Krushelnitsky
Chemical shift anisotropy (CSA) and dipolar CODEX (Cenralband Only Detection of EXchange) experiments enable abundant quantitative information on the reorientation of the CSA and dipolar tensors to be obtained on millisecond-second timescal...
Geminal parahydrogen-induced polarization: accumulating long-lived singlet order on methylene proton pairs [0.03%]
内氢诱导极化：在亚甲基质子对上累积长寿命单线态顺序
Laurynas Dagys,Barbara Ripka,Markus Leutzsch et al.
Laurynas Dagys et al.
In the majority of hydrogenative parahydrogen-induced polarization (PHIP) experiments, the hydrogen molecule undergoes pairwise cis addition to an unsaturated precursor to occupy vicinal positions on the product molecule. However, some ruth...