Magnetic Resonance
@AMPERE_MR
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Joined January 2020
Discussion open for comments: A fast sample shuttle to couple high and low magnetic fields. Applications to high-resolution relaxometry
mr.copernicus.org
Abstract. Combining high-resolution high-field nuclear magnetic resonance (NMR) with an evolution of spin systems at a low magnetic field offers many opportunities for the investigation of molecular...
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New research article: Increased sensitivity in electron–nuclear double resonance spectroscopy with chirped radiofrequency pulses
mr.copernicus.org
Abstract. Electron–nuclear double resonance (ENDOR) spectroscopy is an EPR technique to detect the nuclear frequency spectra of hyperfine coupled nuclei close to paramagnetic centers, which have...
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New research article: Modelling and correcting the impact of RF pulses for continuous monitoring of hyperpolarized NMR
mr.copernicus.org
Abstract. 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...
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New research article: Cell-free synthesis of proteins with selectively 13C-labelled methyl groups from inexpensive precursors
mr.copernicus.org
Abstract. 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...
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New research article: Electron-spin decoherence in trityl radicals in the absence and presence of microwave irradiation
mr.copernicus.org
Abstract. Trityl radicals feature prominently as polarizing agents in solid-state dynamic nuclear polarization experiments and as spin labels in distance distribution measurements by pulsed dipolar...
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Discussion open for comments: Determining large hyperfine interactions of a model flavoprotein in the semiquinone state by pulse-EPR techniques
mr.copernicus.org
Abstract. Flavoproteins are a versatile class of proteins involved in numerous biological processes, including redox reactions, electron transfer, and signal transduction, often relying on their...
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New research article: Analytical treatment of proton double-quantum NMR intensity buildup: multi-spin couplings and the flip-flop term
mr.copernicus.org
Abstract. A modified Anderson–Weiss approximation for describing double-quantum (DQ) NMR experiments in systems with many I = 1/2 spins is proposed, taking inter-spin flip-flop processes into special...
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Discussion open for comments: Automated manufacturing process for sustainable prototyping of NMR transceivers
mr.copernicus.org
Abstract. Additive manufacturing has enabled rapid prototyping of components with minimum investment in specific fabrication infrastructure. These tools allow for a fast iteration from design to...
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New research article: Workflow for systematic design of electrochemical in operando NMR cells by matching B0 and B1 field simulations with experiments
mr.copernicus.org
Abstract. Combining electrochemistry (EC) and nuclear magnetic resonance (NMR) techniques has evolved from a challenging concept to an adaptable and versatile method for battery and electrolysis...
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New research article: Low-power WALTZ decoupling under magic-angle spinning NMR
mr.copernicus.org
Abstract. Heteronuclear low-power decoupling using the solution-state wideband alternating-phase low-power technique for zero-residual splitting (WALTZ) sequences has become quite popular in solid-...
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Discussion open for comments: Pseudo Rotary Resonance Relaxation Dispersion Effects in Isotropic Samples
mr.copernicus.org
Abstract. Enhanced transverse relaxation near rotary resonance conditions is a well-documented effect for anisotropic solid samples undergoing magic-angle spinning (MAS). We report transverse signal...
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Discussion open for comments: Innovative L-band electron paramagnetic resonance investigation of solid-state pouch cell batteries
mr.copernicus.org
Abstract. Usually, conventional electron paramagnetic resonance (EPR) spectroscopy and imaging employ a microwave cavity operating at X-band, i.e., with an excitation frequency of around 9.6 GHz,...
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Discussion open for comments: ih-RIDME: a pulse EPR experiment to probe the heterogeneous nuclear environment
mr.copernicus.org
Abstract. The intermolecular hyperfine relaxation-induced dipolar modulation enhancement experiment (ih-RIDME) is a pulse electron paramagnetic resonance (EPR) experiment that can be used to probe...
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Discussion open for comments: Analytical expressions for time evolution of spin systems affected by two or more interactions
mr.copernicus.org
Abstract. Analytical expressions for the description of the time evolution of spin systems beyond product–operator formalism (POF) can be obtained if a low-dimensional subspace of the Liouville space...
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Discussion open for comments: Electron-spin decoherence in trityl radicals in the absence and presence of microwave irradiation
mr.copernicus.org
Abstract. Trityl radicals feature prominently as polarizing agents in solid-state dynamic nuclear polarization experiments and as spin labels in distance distribution measurements by pulsed dipolar...
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Discussion open for comments: Electron spin dynamics during microwave pulses studied by 94 GHz chirp and phase-modulated EPR experiments
mr.copernicus.org
Abstract. Electron spin dynamics during microwave irradiation are of increasing interest in electron paramagnetic resonance (EPR) spectroscopy, as locking electron spins into a dressed state finds...
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New research article: Design and performance of an oversized-sample 35 GHz EPR resonator with an elevated Q value
mr.copernicus.org
Abstract. Continuous-wave electron paramagnetic resonance (EPR) spectroscopy at 35 GHz is an essential cornerstone in multi-frequency EPR studies and is crucial for differentiating multiple species...
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Discussion open for comments: Analytical treatment of proton double-quantum NMR intensity build-up: multi-spin couplings and the flip-flop term
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New research article: PRESERVE: adding variable flip-angle excitation to transverse relaxation-optimized NMR spectroscopy
mr.copernicus.org
Abstract. We introduce the “Polarization Restoring Excitation SEquence foR Versatile Experiments” (PRESERVE) pulse sequence element, allowing variable flip-angle adjustment in 2D 1H–15N and 1H–13C...
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