Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.

Jasmine Viger-Gravel; Pierrick Berruyer; David Gajan; Jean-Marie Basset; Anne Lesage; Paul Tordo; Olivier Ouari; Lyndon Emsley

doi:10.1002/anie.201703758

Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.

Jasmine Viger-Gravel, Pierrick Berruyer, David Gajan, Jean-Marie Basset, Anne Lesage, Paul Tordo, Olivier Ouari, Lyndon Emsley

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

We show that aqueous acrylamide gels can be used to provide dynamic nuclear polarization (DNP) NMR signal enhancements of around 200 at 9.4 T and 100 K. The enhancements are shown to increase with cross linker concentration and low concentrations of the AMUPol biradical. We show that this DNP matrix can be used in situations where conventional incipient wetness methods fail, such as to obtain DNP surface enhanced NMR spectra from inorganic nanoparticles. In particular, we obtain 113Cd spectra from CdTe-COOH NPs in minutes. The spectra clearly indicate a highly-disordered cadmium rich surface.

Original language	English (US)
Pages (from-to)	8726-8730
Number of pages	5
Journal	Angewandte Chemie International Edition
Volume	56
Issue number	30
DOIs	https://doi.org/10.1002/anie.201703758 https://doi.org/10.1002/ange.201703758
State	Published - Jun 19 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by ERC Advanced Grant No. 320860. We thank Dr. B.J. Walder for help in processing the PASS data, Dr. C. Chamignon for assistance with quantitative liquid-state NMR, and Dr. D. Cala for her insight and advice in gel synthesis.

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Cite this

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title = "Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.",

abstract = "We show that aqueous acrylamide gels can be used to provide dynamic nuclear polarization (DNP) NMR signal enhancements of around 200 at 9.4 T and 100 K. The enhancements are shown to increase with cross linker concentration and low concentrations of the AMUPol biradical. We show that this DNP matrix can be used in situations where conventional incipient wetness methods fail, such as to obtain DNP surface enhanced NMR spectra from inorganic nanoparticles. In particular, we obtain 113Cd spectra from CdTe-COOH NPs in minutes. The spectra clearly indicate a highly-disordered cadmium rich surface.",

author = "Jasmine Viger-Gravel and Pierrick Berruyer and David Gajan and Jean-Marie Basset and Anne Lesage and Paul Tordo and Olivier Ouari and Lyndon Emsley",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by ERC Advanced Grant No. 320860. We thank Dr. B.J. Walder for help in processing the PASS data, Dr. C. Chamignon for assistance with quantitative liquid-state NMR, and Dr. D. Cala for her insight and advice in gel synthesis.",

year = "2017",

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doi = "10.1002/anie.201703758",

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T1 - Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.

AU - Viger-Gravel, Jasmine

AU - Berruyer, Pierrick

AU - Gajan, David

AU - Basset, Jean-Marie

AU - Lesage, Anne

AU - Tordo, Paul

AU - Ouari, Olivier

AU - Emsley, Lyndon

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by ERC Advanced Grant No. 320860. We thank Dr. B.J. Walder for help in processing the PASS data, Dr. C. Chamignon for assistance with quantitative liquid-state NMR, and Dr. D. Cala for her insight and advice in gel synthesis.

PY - 2017/6/19

Y1 - 2017/6/19

N2 - We show that aqueous acrylamide gels can be used to provide dynamic nuclear polarization (DNP) NMR signal enhancements of around 200 at 9.4 T and 100 K. The enhancements are shown to increase with cross linker concentration and low concentrations of the AMUPol biradical. We show that this DNP matrix can be used in situations where conventional incipient wetness methods fail, such as to obtain DNP surface enhanced NMR spectra from inorganic nanoparticles. In particular, we obtain 113Cd spectra from CdTe-COOH NPs in minutes. The spectra clearly indicate a highly-disordered cadmium rich surface.

AB - We show that aqueous acrylamide gels can be used to provide dynamic nuclear polarization (DNP) NMR signal enhancements of around 200 at 9.4 T and 100 K. The enhancements are shown to increase with cross linker concentration and low concentrations of the AMUPol biradical. We show that this DNP matrix can be used in situations where conventional incipient wetness methods fail, such as to obtain DNP surface enhanced NMR spectra from inorganic nanoparticles. In particular, we obtain 113Cd spectra from CdTe-COOH NPs in minutes. The spectra clearly indicate a highly-disordered cadmium rich surface.

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UR - http://onlinelibrary.wiley.com/doi/10.1002/anie.201703758/abstract

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JO - Angewandte Chemie International Edition

JF - Angewandte Chemie International Edition

IS - 30

ER -

Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.

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