Théo El Darai^1,2*, Samuel Cousin^1*, Quentin Stern^1*, Morgan Ceillier^1*, James Kempf^3*, Dmitry Eshchenko^4*, Roberto Melzi^5*, Marc Schnell^4*, Laurent Gremillard^6*, Aurélien Bornet^1*, Jonas Milani^1*, Basile Vuichoud^1*, Olivier Cala^1*, Damien Montarnal^2*, Sami Jannin^1*

1 Univ. Lyon, Centre de RMN à Très Hauts Champs de Lyon, FRE2034 - CNRS/UCBL/ENS de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France.

2 Univ Lyon, CPE Lyon, CNRS, Catalyse, Chimie, Polymères et Procédés, UMR 5265, F-69003, Lyon, France

3 Bruker Biospin, Billerica, Massachusetts 01821, United States

4 Bruker Biospin, 8117 Fallanden, Switzerland

5 Bruker Italia Srl, 20158 Milano, Italy

6 Univ Lyon, INSA Lyon, MATEIS UMR CNRS 5510, Bât. Blaise Pascal, 7 Avenue Jean Capelle, Villeurbanne, France

* Corresponding authors emails: theo.el-darai@univ-lyon1.fr, samuel.cousin@univ-lyon1.fr, quentin.chappuis@univ-lyon1.fr, morgan.ceillier@univ-lyon1.fr, james.Kempf@bruker.com, Dmitry.Eshchenko@bruker.com, Roberto.Melzi@bruker.com, Marc.Schnell@bruker.com, laurent.gremillard@insa-lyon.fr, aurelien.bornet@epfl.ch, jonas.milani@epfl.ch, Basile.VUICHOUD@firmenich.com, olivier.cala@univ-lyon1.fr, damien.montarnal@univ-lyon1.fr, sami.jannin@univ-lyon1.fr

DOI10.24435/materialscloud:kv-6q [version v1]

Publication date: May 31, 2021

How to cite this record

Théo El Darai, Samuel Cousin, Quentin Stern, Morgan Ceillier, James Kempf, Dmitry Eshchenko, Roberto Melzi, Marc Schnell, Laurent Gremillard, Aurélien Bornet, Jonas Milani, Basile Vuichoud, Olivier Cala, Damien Montarnal, Sami Jannin, Porous functionalized polymers enable generating and transporting hyperpolarized mixtures of metabolites, Materials Cloud Archive 2021.79 (2021), doi: 10.24435/materialscloud:kv-6q.

Description

Hyperpolarization by dissolution dynamic nuclear polarization (dDNP) has enabled promising applications in spectroscopy and imaging, but remains poorly widespread due to experimental complexity. Broad democratization of dDNP would require remote preparation and distribution of hyperpolarized samples from dedicated facilities. We describe here new hyperpolarizing polymers (HYPOPs) that can generate radical- and contaminant-free hyperpolarized samples within minutes with lifetimes exceeding hours in the solid state. HYPOPs feature tunable macroporous porosity, with porous volumes up to 80% and concentration of nitroxide radicals grafted in the bulk matrix up to 285 μmol g-1. Analytes can be efficiently impregnated as aqueous/alcoholic solutions and hyperpolarized up to P(13C) =25% within 8 min, through the combination of 1H spin diffusion and 1H →13C cross polarization. Solutions of 13C-analytes of biological interest hyperpolarized in HYPOPs display a very long solid-state 13C relaxation times of 5.7 h at 3.8 K, thus prefiguring transportation over long distances.

Materials Cloud sections using this data

Files

File name	Size	Description
BET data.zip MD5md5:e8c4a6a7a71cbb6a91e1f0810b7b5303	158.5 KiB	N2 adsorption isotherms of porous polymers containing XX mmol/g of nitroxide radicals.
Dissolution data.zip MD5md5:55adc12a696abc173e16eb7c95bb03cc	25.2 MiB	Raw NMR files (Topspin format) related to dissolution experiments
DNP data.zip MD5md5:a88f9f4b5dda410050cea6a4403193ec	255.5 MiB	Raw NMR files (Topspin format) related to DNP experiments
Poro Hg.zip MD5md5:0731c10ab6faed04949b046a842e9b37	63.3 KiB	Hg intrusion porosimetry of porous polymers containing XX mmol/g of nitroxide radicals.
RPE data.zip MD5md5:9ae778c99acd97350ddb7109b7850f31	369.2 KiB	RPE characterization of porous polymers
Scripts_Matlab.zip MD5md5:0fc9a5426aab8ef354175ed648c2a80b	16.1 KiB	Matlab scripts for generating the graphs shown in the paper

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External references

Keywords

DNP porous polymers hyperpolarization Experimental