Hyperpolarized 29Si magnetic resonance spectroscopy of selectively radical-embedded silica nanoparticles

Quy Son Luu; Quynh Thi Nguyen; Jiwon Kim; Jeunghwan Kim; Uyen Thi Do; Nicholas Whiting; Jeong Hyun Shim; Sun-Joon Min; Youngbok Lee

doi:10.1039/D2AN01684B

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Hyperpolarized ²⁹Si magnetic resonance spectroscopy of selectively radical-embedded silica nanoparticles†

Quy Son Luu,‡^a Quynh Thi Nguyen,‡^b Jiwon Kim,‡^a Jeunghwan Kim,^b Uyen Thi Do,^a Nicholas Whiting,^c Jeong Hyun Shim,*^d Sun-Joon Min

*^ab and Youngbok Lee

*^ab

Author affiliations

* Corresponding authors

^a Department of Bionano Technology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, South Korea
E-mail: yblee@hanyang.ac.kr

^b Department of Applied Chemistry, Hanyang University, Ansan 15588, South Korea
E-mail: sjmin@hanyang.ac.kr

^c Department of Physics & Astronomy and Department of Biological & Biomedical Sciences, Rowan University, Glassboro, NJ 08028, USA

^d Quantum magnetic imaging team, Korea Research Institute of Standards and Science, Daejeon 34113, South Korea
E-mail: jhshim@kriss.re.kr

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.

This article is part of the themed collection: Analyst HOT Articles 2022

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Article information

DOI: https://doi.org/10.1039/D2AN01684B
Article type: Communication
Submitted: 14 ⴽⵜⵓ 2022
Accepted: 12 ⵏⵓⵡ 2022
First published: 14 ⵏⵓⵡ 2022

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Analyst, 2022,147, 5607-5612

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Hyperpolarized ²⁹Si magnetic resonance spectroscopy of selectively radical-embedded silica nanoparticles

Q. S. Luu, Q. T. Nguyen, J. Kim, J. Kim, U. T. Do, N. Whiting, J. H. Shim, S. Min and Y. Lee, Analyst, 2022, 147, 5607 DOI: 10.1039/D2AN01684B

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