Brinkmann Research

Andreas Brinkmann

About myself: I am currently a Research Officer in the Organic Chemical Metrology group in the Metrology Research Centre of the National Research Council Canada in Ottawa. Please check my ORCID iD iconORCID profile.

About my research: I develop solid-state NMR techniques for quantitative analysis (qNMR) and to characterize advanced materials in emerging technologies across a wide range of natural and synthetic advanced materials. These materials include natural and synthetic nano- and mesoporous materials for gas sequestration and storage such as gas hydrates, minerals, aluminates and zeolites, quantum dots for light harvesting, modern battery materials, fuel cell membranes, various hydrides for hydrogen storage applications, modern pharmaceutical compounds and polymers.

Please don't hesitate to contact me with your specific materials characterization problem, or if you would like to work with me as co-op, summer student or visitor.

19th July 2025

Our paper entitled NMR Crystallographic Investigation Coupled with Molecular Dynamics Simulations Reveals the Nature of Disorder in Chlorpromazine Hydrochloride Solvatomorphs have been published in Molecular Pharmaceutics.

We presents a comprehensive investigation into the nature of the structural disorder of chlorpromazine hydrochloride solvatomorphs using a combination of nuclear magnetic resonance (NMR) crystallography and molecular dynamics simulations.

Please find out more details under Publications.

Figure from paper

11th March 2025

The final report for the Key comparison CCQM-K148.b—polar analyte in solid organic material: mass fraction of oxytetracycline have been published in Metrologia.

For this CCQM (Comité consultatif pour la quantité de matière / Consultative Committee for the Amount of Substance: Metrology in Chemistry and Biology) study for the first time the value for the final mass fraction of the analyte was obtained in a joined effort of the Organic Chemical and Biotoxin Metrology teams of the Metrology Research Centre of the National Research Council Canada, using two complementary quantitative nuclear magnetic resonance spectroscopy (qNMR) methods, utilizing internal and external standards for achieving traceability to the International System of Units.

Please find out more details under Publications.

Figure from paper

10th February 2025

Finally, I have published the 2nd part of my Introduction to Average Hamiltonian Theory in the Journal of Magnetic Resonance Open.

It presents in a comprehensive but educational manner two, more advanced examples for the application of average Hamiltonian theory in solid-state NMR spectroscopy, both to analyse and design rf pulse sequences: (i) The Rotational-Echo Double Resonance (REDOR) sequence, which recouples the heteronuclear dipolar coupling during sample rotation around an axis at the magic-angle of 54.74° with respect to the external static magnetic field. (ii) The Lee-Goldburg homonuclear dipolar decoupling sequence under static samples conditions and its improved successors, Flip-Flop Lee-Goldburg (FFLG) and Frequency-Switched Lee-Goldburg (FSLG).

Figure from paper

This 2nd part continues seemlessly the 1st part published in the special issue of Concepts in Magnetic Resonance in honor of Alex Bain.

The goal of the 1st part is to introduce average Hamiltonian theory in a rigorous but educational manner. The application to two composite pulses in NMR spectroscopy is used to demonstrate important aspects of average Hamiltonian theory.

Please find out more details under Publications.

Figure from paper

1st November 2024

Postdoctoral Fellowship, Hyperpolarization in Quantitative NMR and Quantum Information Processing.

Project Title: Parahydrogen-Induced Hyperpolarization: Applications to Quantitative NMR and Quantum Information Processing

The Role: Nuclear Magnetic Resonance (NMR) spectroscopy is an indispensable tool in chemistry, biochemistry, medicine, pharmaceutical, food, polymer and material science. It enables identification, structure determination, the study of dynamics, and quantification of small- to macromolecules. However, NMR, especially of dilute analytes in complex mixtures, is hampered by low sensitivity due to the low nuclear polarization at thermal equilibrium. Parahydrogen-induced polarization (PHIP) has grown into an attractive, relatively low-cost, and versatile technique to produce non-equilibrium nuclear polarization, or hyperpolarization, resulting in NMR signal enhancements of 2-3 order of magnitudes in specific substrate molecules, enabling detection at nanomolar concentrations. The goal of this PDF project is to setup and exploit PHIP to (i) push the sensitivity of quantitative NMR to unprecedented limits, enabling orders of magnitudes lower limits of detection and quantification, and (ii) enable the use of a larger number of nuclear spin qubits for the simulation of more complex quantum algorithms by offsetting the inherent polarization loss during computation.

Education: Ph.D. in chemistry, biochemistry, or closely related field.

Experience: Experience with developing and employing advanced NMR techniques, including pulse sequence development, multi-nuclear and multi-dimensional experiments is required; Prior experience in hyperpolarization techniques is highly desirable.

Language Requirements: English

Duration: 2 years

Location: Ottawa, Canada

Closing Date: 18 December 2024

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