Capillary-Inserted Rotor Design for HRµMAS NMR-Based Metabolomics on Mass-Limited Neurospheres
AbstractNuclear magnetic resonance (NMR) spectroscopy is a powerful analytical technique and has been widely used in metabolomics. However, the intrinsic low sensitivity of NMR prevents its applications to systems with limited sample availabilities. In this study, a new experimental approach is presented to analyze mass-scarce samples in limited volumes of less than 300 nL with simple handling. The sample is loaded into the glass capillary, and this capillary is then inserted into a Kel-F rotor. The experimental performance of the capillary-inserted rotor (capillary-insert) is investigated on an isotropic solution of sucrose by the use of a high-resolution micro-sized magic angle spinning (HRµMAS) probe. The acquired NMR signal’s sensitivity to a given sample amount is comparable or even higher in comparison to that recorded by the standard solution NMR probe. More importantly, this capillary-insert coupled with the HRµMAS probe allows in-depth studies of heterogeneous samples as the MAS removes the line broadening caused by the heterogeneity. The NMR analyses of mass-limited cultured neurospheres have been demonstrated, resulting in high quality spectra where numerous metabolites are unambiguously identified. View Full-Text
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Duong, N.T.; Yamato, M.; Nakano, M.; Kume, S.; Tamura, Y.; Kataoka, Y.; Wong, A.; Nishiyama, Y. Capillary-Inserted Rotor Design for HRµMAS NMR-Based Metabolomics on Mass-Limited Neurospheres. Molecules 2017, 22, 1289.
Duong NT, Yamato M, Nakano M, Kume S, Tamura Y, Kataoka Y, Wong A, Nishiyama Y. Capillary-Inserted Rotor Design for HRµMAS NMR-Based Metabolomics on Mass-Limited Neurospheres. Molecules. 2017; 22(8):1289.Chicago/Turabian Style
Duong, Nghia T.; Yamato, Masanori; Nakano, Masayuki; Kume, Satoshi; Tamura, Yasuhisa; Kataoka, Yosky; Wong, Alan; Nishiyama, Yusuke. 2017. "Capillary-Inserted Rotor Design for HRµMAS NMR-Based Metabolomics on Mass-Limited Neurospheres." Molecules 22, no. 8: 1289.
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