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Tailored nanodiamonds for hyperpolarized ¹³C MRI

Boele, T. and Waddington, D. E. J. and Gaebel, T. and Rej, E. and Hasija, A. and Brown, L. J. and McCamey, D. R. and Reilly, D. J. (2020) Tailored nanodiamonds for hyperpolarized ¹³C MRI. Physical Review B, 101 (15). Art. No. 155416. ISSN 2469-9950. https://resolver.caltech.edu/CaltechAUTHORS:20200417-141254375

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Abstract

Nanodiamond is poised to become an attractive material for hyperpolarized ¹³C magnetic resonance imaging if large nuclear polarizations can be achieved without the accompanying rapid spin-relaxation driven by paramagnetic species. Here we report enhanced and long-lived ¹³C polarization in synthetic nanodiamonds tailored by acid-cleaning and air-oxidation protocols. Our results separate the contributions of different paramagnetic species on the polarization behavior, identifying the importance of substitutional nitrogen defect centers in the nanodiamond core. These results are likely of use in the development of nanodiamond-based imaging agents with size distributions of relevance for examining biological processes.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/physrevb.101.155416DOIArticle
https://arxiv.org/abs/1909.04842arXivDiscussion Paper
ORCID:
AuthorORCID
Boele, T.0000-0001-9322-7762
Waddington, D. E. J.0000-0002-7017-1556
Hasija, A.0000-0002-1116-6124
Additional Information:© 2020 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 13 September 2019; accepted 23 March 2020; published 17 April 2020. The authors acknowledge the support of the Australian Research Council Centre of Excellence Scheme (Grant No. EQuS CE110001013) and ARC DP1094439. We also acknowledge use of the EPR tools provided by the NMR Facility within the Mark Wainwright Analytical Centre at the University of New South Wales.
Funders:
Funding AgencyGrant Number
Australian Research CouncilCE110001013
Australian Research CouncilDP1094439
Issue or Number:15
Record Number:CaltechAUTHORS:20200417-141254375
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200417-141254375
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102613
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:17 Apr 2020 21:43
Last Modified:17 Apr 2020 21:43

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