期刊
SCIENTIFIC REPORTS
卷 11, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41598-021-83625-y
关键词
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资金
- European Research Council (ERC) [290586]
- EU2020 FET grant (TiSuMR) [737043]
- ERC-SyG (HiSCORE) [951459]
- DFG of the German Excellence Intitiative [KO 1883/39-1, EXC 2082]
- KIT-VirtMat initiative Virtual Materials Design II
- Helmholtz Association
- Karlsruhe Institute of Technology (KIT)
- European Research Council (ERC) [951459] Funding Source: European Research Council (ERC)
A compact double resonant chip stack system has been developed to achieve in situ dynamic nuclear polarisation of small sample volumes, overcoming instrumental barriers to NMR detection for point-of-care applications. This technology allows for signal enhancements up to -60 relative to thermal equilibrium at a microwave power level of 0.5W.
Nuclear magnetic resonance at low field strength is an insensitive spectroscopic technique, precluding portable applications with small sample volumes, such as needed for biomarker detection in body fluids. Here we report a compact double resonant chip stack system that implements in situ dynamic nuclear polarisation of a 130 nL sample volume, achieving signal enhancements of up to - 60 w.r.t. the thermal equilibrium level at a microwave power level of 0.5 W. This work overcomes instrumental barriers to the use of NMR detection for point-of-care applications.
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