Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.

Handle URI:
http://hdl.handle.net/10754/623764
Title:
Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.
Authors:
Viger-Gravel, Jasmine; Berruyer, Pierrick; Gajan, David; Basset, Jean-Marie ( 0000-0003-3166-8882 ) ; Lesage, Anne; Tordo, Paul; Ouari, Olivier; Emsley, Lyndon
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.
KAUST Department:
KAUST Catalysis Center (KCC)
Citation:
Viger-Gravel J, Berruyer P, Gajan D, Basset J-M, Lesage A, et al. (2017) Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices. Angewandte Chemie International Edition. Available: http://dx.doi.org/10.1002/anie.201703758.
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
24-May-2017
DOI:
10.1002/anie.201703758; 10.1002/ange.201703758
Type:
Article
ISSN:
1433-7851
Sponsors:
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.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/anie.201703758/abstract
Appears in Collections:
Articles; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorViger-Gravel, Jasmineen
dc.contributor.authorBerruyer, Pierricken
dc.contributor.authorGajan, Daviden
dc.contributor.authorBasset, Jean-Marieen
dc.contributor.authorLesage, Anneen
dc.contributor.authorTordo, Paulen
dc.contributor.authorOuari, Olivieren
dc.contributor.authorEmsley, Lyndonen
dc.date.accessioned2017-05-31T10:09:30Z-
dc.date.available2017-05-31T10:09:30Z-
dc.date.issued2017-05-24en
dc.identifier.citationViger-Gravel J, Berruyer P, Gajan D, Basset J-M, Lesage A, et al. (2017) Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices. Angewandte Chemie International Edition. Available: http://dx.doi.org/10.1002/anie.201703758.en
dc.identifier.issn1433-7851en
dc.identifier.doi10.1002/anie.201703758en
dc.identifier.doi10.1002/ange.201703758en
dc.identifier.urihttp://hdl.handle.net/10754/623764-
dc.description.abstractWe 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.en
dc.description.sponsorshipThis 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.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/anie.201703758/abstracten
dc.rightsThis is the peer reviewed version of the following article: Frozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices, which has been published in final form at http://doi.org/10.1002/anie.201703758. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.subjectDynamic nuclear polarizationen
dc.subjectpolyacrylamide gelen
dc.subjectnanoparticlesen
dc.subjectquantum dotsen
dc.titleFrozen Acrylamide Gels as Dynamic Nuclear Polarization Matrices.en
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalAngewandte Chemie International Editionen
dc.eprint.versionPost-printen
dc.contributor.institutionInstitut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH- 1015, Switzerland.; SWITZERLANDen
dc.contributor.institutionUniversité de Lyon, Institut des Sciences Analytiques (UMR 5280 CNRS/UCBL/ENS Lyon), Centre de RMN à Très Hauts Champs, Villeurbanne 69100, France.; FRANCEen
dc.contributor.institution5 rue de la Doua 69100 Lyon FRANCEen
dc.contributor.institutionAix-Marseille Université, CRNS, ICR UMR 7273, 13397 Marseille, France.; FRANCEen
dc.contributor.institutionAv. Normandie Niemen 13013 Marseille FRANCEen
dc.contributor.institutionEPFL; Chemistry; Avenue Forel 1015 Lausanne SWITZERLANDen
kaust.authorBasset, Jean-Marieen
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