Works (14)

Updated: April 23rd, 2025 18:21

2024 article

Toward Ultra‐High‐Quality‐Factor Wireless Masing Magnetic Resonance Sensing

Adelabu, I., Nantogma, S., Fleischer, S., Abdulmojeed, M., Maissin, H., Schmidt, A. B., … Chekmenev, E. Y. (2024, June 1). Angewandte Chemie International Edition, Vol. 7.

By: I. Adelabu*, S. Nantogma*, S. Fleischer*, M. Abdulmojeed n, H. Maissin*, A. Schmidt*, S. Lehmkuhl*, M. Rosen* ...

author keywords: parahydrogen; hyperpolarization; RASER; parametric pumping; NMR spectroscopy
MeSH headings : Magnetic Resonance Spectroscopy; Magnetic Resonance Imaging / methods; Wireless Technology; Pyruvic Acid / chemistry
topics (OpenAlex): Organic Light-Emitting Diodes Research; Advanced Sensor and Energy Harvesting Materials; Wireless Power Transfer Systems
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Sources: Web Of Science, NC State University Libraries
Added: July 30, 2024

2023 article

Exploring synchrony and chaos of parahydrogen-pumped two-compartment radio-frequency amplification by stimulated emission of radiation

Lohmann, L., Lehmkuhl, S., Fleischer, S., Rosen, M. S., Chekmenev, E. Y., Theis, T., … Appelt, S. (2023, August 15). Physical Review. A/Physical Review, A, Vol. 108.

topics (OpenAlex): Atomic and Subatomic Physics Research; Advanced NMR Techniques and Applications; Quantum optics and atomic interactions
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 16, 2023

2023 article

Parahydrogen in Reversible Exchange Induces Long-Lived 15N Hyperpolarization of Anticancer Drugs Anastrozole and Letrozole

MacCulloch, K., Browning, A., TomHon, P., Lehmkuhl, S., Chekmenev, E. Y., & Theis, T. (2023, May 10). Analytical Chemistry, Vol. 5, pp. 7822–7829.

By: K. MacCulloch n, A. Browning n, P. TomHon n, S. Lehmkuhl n, E. Chekmenev* & T. Theis n

Contributors: K. MacCulloch n, A. Browning n, P. Tomhon n, S. Lehmkuhl n, E. Chekmenev* & T. Theis n

MeSH headings : Letrozole; Anastrozole; Magnetic Resonance Spectroscopy; Magnetic Resonance Imaging; Antineoplastic Agents / pharmacology
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; Solid-state spectroscopy and crystallography
TL;DR: The nitrile 15N sites enable long-lasting polarization storage with [15N]T1 over 9 min, enabling signal detection from a single hyperpolarization cycle for over 30 min, and this sensitivity gain enables polarization studies at naturally abundant 15N enrichment level (0.4%). (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: May 11, 2023

2023 article

SABRE Hyperpolarization with up to 200 bar Parahydrogen in Standard and Quickly Removable Solvents

Duchowny, A., Denninger, J., Lohmann, L., Theis, T., Lehmkuhl, S., & Adams, A. (2023, January 27). International Journal of Molecular Sciences, Vol. 24.

By: A. Duchowny*, J. Denninger*, L. Lohmann*, T. Theis n, S. Lehmkuhl* & A. Adams*

Contributors: A. Duchowny*, J. Denninger*, L. Lohmann*, T. Theis n, S. Lehmkuhl* & A. Adams*

author keywords: high-pressure; benchtop NMR; SABRE; hyperpolarization; removable solvent
MeSH headings : Solvents / chemistry; Magnetic Resonance Spectroscopy / methods; Magnetic Resonance Imaging; Methanol
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; Quantum, superfluid, helium dynamics
Sources: Web Of Science, ORCID, NC State University Libraries
Added: January 31, 2023

2023 article

Spin dynamics of [1,2-13C2]pyruvate hyperpolarization by parahydrogen in reversible exchange at micro Tesla fields

Browning, A., Macculloch, K., TomHon, P., Mandzhieva, I., Chekmenev, E. Y., Goodson, B. M., … Theis, T. (2023, January 1). Physical Chemistry Chemical Physics, Vol. 25, pp. 16446–16458.

Contributors: A. Browning n, K. Macculloch n, P. TomHon n, I. Mandzhieva n, E. Chekmenev*, B. Goodson*, S. Lehmkuhl n, T. Theis n

topics (OpenAlex): Advanced NMR Techniques and Applications; Electron Spin Resonance Studies; Atomic and Subatomic Physics Research
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 13, 2023

2022 article

Parahydrogen‐Induced Carbon‐13 Radiofrequency Amplification by Stimulated Emission of Radiation

Nelson, C., Schmidt, A. B., Adelabu, I., Nantogma, S., Kiselev, V. G., Abdurraheem, A., … Chekmenev, E. Y. (2022, November 28). Angewandte Chemie International Edition, Vol. 12.

By: C. Nelson n, A. Schmidt*, I. Adelabu*, S. Nantogma*, V. Kiselev*, A. Abdurraheem*, H. Maissin*, S. Lehmkuhl* ...

Contributors: C. Nelson n, A. Schmidt*, I. Adelabu*, S. Nantogma*, V. Kiselev*, A. Abdurraheem*, H. Maissin*, S. Lehmkuhl* ...

author keywords: Carbon-13; Hyperpolarization; NMR Spectroscopy; Parahydrogen; RASER
MeSH headings : Hydrogen / chemistry; Protons; Magnetic Resonance Spectroscopy; Acetates / chemistry
topics (OpenAlex): Advanced NMR Techniques and Applications; Solid-state spectroscopy and crystallography; Atomic and Subatomic Physics Research
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 20, 2022

2022 article

RASER MRI: Magnetic resonance images formed spontaneously exploiting cooperative nonlinear interaction

Lehmkuhl, S., Fleischer, S., Lohmann, L., Rosen, M. S., Chekmenev, E. Y., Adams, A., … Appelt, S. (2022, July 13). Science Advances, Vol. 7.

topics (OpenAlex): Atomic and Subatomic Physics Research; Advanced MRI Techniques and Applications; Advanced NMR Techniques and Applications
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 14, 2022

2021 article

A Versatile Compact Parahydrogen Membrane Reactor

TomHon, P. M., Han, S., Lehmkuhl, S., Appelt, S., Chekmenev, E. Y., Abolhasani, M., & Theis, T. (2021, September 27). ChemPhysChem, Vol. 10, pp. 2526–2534.

By: P. TomHon n, S. Han n, S. Lehmkuhl n, S. Appelt*, E. Chekmenev*, M. Abolhasani n, T. Theis n

Contributors: P. TomHon n, S. Han n, S. Lehmkuhl n, S. Appelt*, E. Chekmenev*, M. Abolhasani n, T. Theis n

author keywords: hyperpolarization; parahydrogen; NMR; fluidics; RASER
MeSH headings : Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; NMR spectroscopy and applications
TL;DR: A Spin Transfer Automated Reactor that produces continuous parahydrogen induced polarization (PHIP), which is stable for hours to days is introduced, and the PHIP variant called signal amplification by reversible exchange (SABRE) is used, which is particularly well suited to produce continuous hyperpolarization. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: November 8, 2021

2021 article

Density Functional Theory Study of Reaction Equilibria in Signal Amplification by Reversible Exchange

Lin, K., TomHon, P., Lehmkuhl, S., Laasner, R., Theis, T., & Blum, V. (2021, September 22). ChemPhysChem, Vol. 9.

By: K. Lin*, P. TomHon n, S. Lehmkuhl n, R. Laasner*, T. Theis n & V. Blum*

Contributors: K. Lin*, P. TomHon n, S. Lehmkuhl n, R. Laasner*, T. Theis n & V. Blum*

author keywords: computational chemistry; density functional calculations; hyperpolarization; NMR spectroscopy; reaction mechanisms; parahydrogen
MeSH headings : Density Functional Theory; Hydrogen / chemistry; Methanol / chemistry; Pyridines / chemistry; Surface Properties
topics (OpenAlex): Advanced NMR Techniques and Applications; Ammonia Synthesis and Nitrogen Reduction; Spectroscopy and Quantum Chemical Studies
TL;DR: An in-depth theoretical analysis of key chemical equilibria in Signal Amplification by Reversible Exchange (SABRE), employing density functional theory calculations to characterize the likely reaction network, shows that a methanol-containing intermediate is plausible as a transient species in the process. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: September 23, 2021

2021 journal article

Micron-Scale NV-NMR Spectroscopy with Signal Amplification by Reversible Exchange

PRX Quantum, 2(1), 010305.

By: N. Arunkumar*, D. Bucher*, M. Turner*, P. TomHon n, D. Glenn*, S. Lehmkuhl n, M. Lukin*, H. Park* ...

Contributors: N. Arunkumar*, D. Bucher*, M. Turner*, P. Tomhon n, D. Glenn*, S. Lehmkuhl n, M. Lukin*, H. Park* ...

topics (OpenAlex): Diamond and Carbon-based Materials Research; High-pressure geophysics and materials; Atomic and Subatomic Physics Research
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: January 13, 2021

2020 journal article

Automated pneumatic shuttle for magnetic field cycling and parahydrogen hyperpolarized multidimensional NMR

Journal of Magnetic Resonance, 312, 106700.

By: P. TomHon n, E. Akeroyd n, S. Lehmkuhl n, E. Chekmenev* & T. Theis n

Contributors: P. TomHon n, E. Akeroyd n, S. Lehmkuhl n, E. Chekmenev* & T. Theis n

author keywords: Parahydrogen; SABRE; Magnetic field cycling; Pneumatic shuttling; Singlet states; Hyperpolarization
MeSH headings : Catalysis; Equipment Design; Hydrogen / chemistry; Magnetic Fields; Magnetic Resonance Spectroscopy / instrumentation; Models, Molecular; Nitrogen Isotopes / chemistry; Protons
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; NMR spectroscopy and applications
TL;DR: A simple-to-implement pneumatic sample shuttle system that enables automated 2D hyperpolarized NMR, including the first inverse 15N/1H HSQC, and uncovers binding mechanisms of the catalytic species through cross peaks that are not accessible in standard one-dimensional hyperPolarized experiments. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: March 23, 2020

2020 journal article

Parahydrogen‐Induced Radio Amplification by Stimulated Emission of Radiation

Angewandte Chemie International Edition, 59(22), 8654–8660.

author keywords: hyperpolarization; NMR spectroscopy; parahydrogen; PHIP; RASER
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; Solid-state spectroscopy and crystallography
TL;DR: This work uses a commercial bench-top NMR spectrometer in conjunction with pairwise parahydrogen addition producing proton-hyperpolarized molecules in the Earth's magnetic field or in a high magnetic field to induce RASER without any radio-frequency excitation pulses. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: June 1, 2020

2020 journal article

SABRE and PHIP pumped RASER and the route to chaos

Journal of Magnetic Resonance, 322, 106815.

author keywords: RASER; Hyperpolarization; NMR spectroscopy; MRI; Parahydrogen; PHIP; PASADENA; ALTADENA; SABRE; Synergetics; Slaving principle; Non-linear coupled oscillators; Mode collapse; Period doubling; Chaos; Intermittence
topics (OpenAlex): Advanced NMR Techniques and Applications; Atomic and Subatomic Physics Research; Quantum optics and atomic interactions
TL;DR: Light is shed on the links between NMR spectroscopy, RASER physics, synergetics and chaos theory and several new applications are envisioned in the fields of quantum sensor technology, structure investigation or magnetic resonance imaging (MRI). (via Semantic Scholar)
Sources: Web Of Science, ORCID, Crossref, NC State University Libraries
Added: January 12, 2021

2020 journal article

SABRE polarized low field rare-spin spectroscopy

The Journal of Chemical Physics, 152(18), 184202.

By: S. Lehmkuhl n, M. Suefke*, A. Kentner*, Y. Yen*, B. Blümich*, M. Rosen*, S. Appelt*, T. Theis n

Contributors: S. Lehmkuhl n, M. Suefke*, A. Kentner*, Y. Yen*, B. Blümich*, M. Rosen*, S. Appelt*, T. Theis n

topics (OpenAlex): Atomic and Subatomic Physics Research; Advanced NMR Techniques and Applications; NMR spectroscopy and applications
TL;DR: The combination of low field NMR instruments with SABRE polarization results in sensitive measurements, even for rare spins with low gyromagnetic ratios at low magnetic fields. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: June 15, 2020

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