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Updated: Feb 11, 2026

Dissolution Dynamic Nuclear Polarization Instrumentation for Real-time Enzymatic Reaction Rate Measurements by NMR
Published on: February 23, 2016
Dissolution Dynamic Nuclear Polarization at Room Temperature Using Photoexcited Triplet Electrons
Makoto Negoro1,2, Akinori Kagawa1, Kenichiro Tateishi3
1Graduate School of Engineering Science , Osaka University , Toyonaka, Osaka 560-8531 , Japan.
Abstract:
Dissolution dynamic nuclear polarization (DNP) has recently gained attention as a method to enhance the sensitivity of liquid NMR spectroscopy and MRI. We demonstrate dissolution of the sample hyperpolarized by DNP using photoexcited triplet electrons in 0.38 T at room temperature. The achieved polarization of 0.8% is 6100 times as high as that at thermal equilibrium under the condition. The result is an important step for DNP using photoexcited triplet electrons to become widely used in chemical and biomedical research.
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