Dissolution Dynamic Nuclear Polarization at Room Temperature Using Photoexcited Triplet Electrons

被引：32

作者：

Negoro, Makoto ^{[1
,2
]}

Kagawa, Akinori ^{[1
]}

Tateishi, Kenichiro ^{[3
]}

Tanaka, Yoshiki ^{[1
]}

Yuasa, Tomohiro ^{[1
]}

Takahashi, Keigo ^{[1
]}

Kitagawa, Masahiro ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan

[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

[3] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2018年 / 122卷 / 17期

关键词：

SPINS;

D O I：

10.1021/acs.jpca.8b01415

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：4294 / 4297

页数：4

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