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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-4504
DTSTART:20170309T160000Z
DURATION:PT1H0M0S
DTSTAMP:20240329T051303Z
LAST-MODIFIED:20170306T135451Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Hyperpolarized Spins in Nanodiamond\, R. G. Herb Condensed Mat
ter Seminar\, Ewa Rej\, University of Sydney
DESCRIPTION:Nanodiamond is emerging as a platform for the development
of nanoparticles for personalized medicine\, based on its unique quant
um mechanical properties\, biocompatibility\, and rich surface chemist
ry. Although diamonds have already been used for drug delivery of chem
otherapeutics\, and as optical sensors of sub cellular processes\, a m
eans of non-invasively detecting these nanoparticles in-vivo is still
lacking.
\nI will present work towards developing nanodiamond as a
new bioagent for MRI. By increasing the 13C nuclear spin polarization
in diamond\, we boost the detectable NMR signal by several orders of
magnitude. These hyperpolarization techniques\, combined with the long
T1 relaxation times of up to an hour in nanodiamond\, open the possib
ility of using standard MRI techniques to image small concentrations o
f nanoparticles over long time scales.
\nI will also present work
examining T2 spin-spin relaxation times\, demonstrating how T2 can inc
rease by three orders of magnitude using hyperpolarization combined wi
th dynamical decoupling sequences.
\n
URL:https://www.physics.wisc.edu/events/?id=4504
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