ArticleAngewandte Chemie (International ed. in English)2020
Parahydrogen-Induced Radio Amplification by Stimulated Emission of Radiation.
Article in Angewandte Chemie (International ed. in English), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Intermolecular Nuclear Spin Hyperpolarization Transfer via Cross-Relaxation Triggers RASER of Solute Molecules.Angewandte Chemie (International ed. in English) · 2026Article
- Rapid RASER MRI.Angewandte Chemie (International ed. in English) · 2026Article
- RASER for Increased Spectral Resolution in Carbon-13 NMR.Analytical chemistry · 2025Article
- Spontaneous increasing of sensitivity and resolution in parahydrogen-induced hyperpolarization by RASER.Magnetic resonance letters · 2025Article
- Homogeneous Catalysts for Hydrogenative PHIP Used in Biomedical Applications.Analysis & sensing · 2025Article
- Through-bond and through-space radiofrequency amplification by stimulated emission of radiation.Communications chemistry · 2024Article
- Toward Ultra-High-Quality-Factor Wireless Masing Magnetic Resonance Sensing.Angewandte Chemie (International ed. in English) · 2024Article
- Carbon-13 Radiofrequency Amplification by Stimulated Emission of Radiation of the Hyperpolarized Ketone and Hemiketal Forms of Allyl [1-ACS sensors · 2024Article
- Metal-Mediated Catalytic Polarization Transfer fromACS catalysis · 2024Article
- Article
- Spin Hyperpolarization in Modern Magnetic Resonance.Chemical reviews · 2023Review
- Parahydrogen-Induced Carbon-13 Radiofrequency Amplification by Stimulated Emission of Radiation.Angewandte Chemie (International ed. in English) · 2023Article
- Parahydrogen-induced polarization and spin order transfer in ethyl pyruvate at high magnetic fields.Scientific reports · 2022Article
- Through-Space Multinuclear Magnetic Resonance Signal Enhancement Induced by Parahydrogen and Radiofrequency Amplification by Stimulated Emission of Radiation.Analytical chemistry · 2022Article
- RASER MRI: Magnetic resonance images formed spontaneously exploiting cooperative nonlinear interaction.Science advances · 2022Article
- A Versatile Compact Parahydrogen Membrane Reactor.Chemphyschem : a European journal of chemical physics and physical chemistry · 2021Article
- Background-Free Proton NMR Spectroscopy with Radiofrequency Amplification by Stimulated Emission Radiation.Angewandte Chemie (International ed. in English) · 2021Article
- Spontaneous Enhancement of Magnetic Resonance Signals Using a RASER.Angewandte Chemie (International ed. in English) · 2021Article
- Clinical-Scale Production of Nearly Pure (>98.5%) Parahydrogen and Quantification by Benchtop NMR Spectroscopy.Analytical chemistry · 2021Article
- Low-Flammable Parahydrogen-Polarized MRI Contrast Agents.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Radio amplification by stimulated emission of radiation (RASER) was recently discovered in a low-field NMR spectrometer incorporating a highly specialized radio-frequency resonator, where a high degree of proton-spin polarization was achieved by reversible parahydrogen exchange. RASER activity, which results from the coherent coupling between the nuclear spins and the inductive detector, can overcome the limits of frequency resolution in NMR. Here we show that this phenomenon is not limited to low magnetic fields or the use of resonators with high-quality factors. We use a commercial bench-top 1.4 T NMR spectrometer in conjunction with pairwise parahydrogen addition producing proton-hyperpolarized molecules in the Earth's magnetic field (ALTADENA condition) or in a high magnetic field (PASADENA condition) to induce RASER without any radio-frequency excitation pulses. The results demonstrate that RASER activity can be observed on virtually any NMR spectrometer and measures most of the important NMR parameters with high precision.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.