1. A Single-Scan Inhomogeneity-Tolerant NMR Method for High-Resolution Two-Dimensional J-Resolved Spectroscopy.
- Author
-
Zhan, Haolin, Lin, Xiaoqing, Ye, Qimiao, Cai, Shuhui, You, Xueqiu, Wei, Zhiliang, Huang, Yuqing, and Chen, Zhong
- Subjects
- *
NUCLEAR magnetic resonance spectroscopy , *MAGNETIC fields , *ENCODING , *BIOLOGICAL monitoring , *TISSUES - Abstract
Objective: A robust and general single-scan NMR method, SGEN-J, is proposed for real-time recording high-resolution two-dimensional (2D) homonuclear J-resolved spectra under inhomogeneous magnetic fields. Methods: This proposed NMR method is designed based on the combination of a selective gradient encoding module to encode chemical shifts with spatial positions, and a J-modulation decoding module to reveal encoded structural information. Multi-band SGEN-J is further implemented to effectively enhance spectral sensitivity with a sustained tolerance of field inhomogeneity. Results: The SGEN-J provides an effective way to rapidly recover chemical shifts, J coupling constants, and multiplet patterns under inhomogeneous magnetic fields. Experiments on various chemical solutions were performed to demonstrate the feasibility and effectiveness of SGEN-J. Experiments on pig marrow tissues were performed to further investigate the applicability of SGEN-J to biological samples with intrinsic susceptibility variations. Conclusion: Based on intrinsic advantages, SGEN-J serves as a helpful complement to existing 2D J-resolved methodologies in molecular structure elucidation and biomedical study, and offer bright perspectives for real-time analyzing in vivo biological systems and monitoring in situ chemical reactions. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF