Hyperpolarized 29Si magnetic resonance spectroscopy of selectively radical-embedded silica nanoparticles
The Analyst2022Vol. 147(24), pp. 5607–5612
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Quy Son Luu, Quynh Thi Nguyen, Jiwon Kim, Jeunghwan Kim, Uyen Thi, Nicholas Whiting, Jeong Hyun Shim, Sun‐Joon Min, Youngbok Lee
Abstract
The embedding of radicals at different locations within core@shell silica nanoparticles contributes to enhanced polarization capability and can be self-polarized without adding external radicals. With grafting the radical source homogenously inside of the nanoparticles, a significant 29Si hyperpolarization signal enhancement of 49.4 was obtained.
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