Hyperpolarized Nanodiamond Surfaces #DNPNMR

Rej, E., et al., Hyperpolarized Nanodiamond Surfaces. J Am Chem Soc, 2017. 139(1): p. 193-199.

https://www.ncbi.nlm.nih.gov/pubmed/28009158

The widespread use of nanodiamond as a biomedical platform for drug-delivery, imaging, and subcellular tracking applications stems from its nontoxicity and unique quantum mechanical properties. Here, we extend this functionality to the domain of magnetic resonance, by demonstrating that the intrinsic electron spins on the nanodiamond surface can be used to hyperpolarize adsorbed liquid compounds at low fields and room temperature. By combining relaxation measurements with hyperpolarization, spins on the surface of the nanodiamond can be distinguished from those in the bulk liquid. These results are likely of use in signaling the controlled release of pharmaceutical payloads.

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