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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
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Single-Scan High-Resolution 2-D $J$ -Resolved Spectroscopy in Inhomogeneous Magnetic Fields
IEEE Transactions on Bio-Medical Engineering
|January 19, 2018
Summary
This study introduces a novel nuclear magnetic resonance (NMR) method for high-resolution 2D spectra acquisition, even in severely distorted magnetic fields. The technique rapidly analyzes complex mixtures and biological tissues.
Area of Science:
- Magnetic Resonance Spectroscopy
- Analytical Chemistry
Background:
- Conventional NMR spectroscopy is sensitive to magnetic field homogeneity.
- Inhomogeneous fields can obscure spectral information, limiting analysis of complex samples.
Purpose of the Study:
- To develop a high-resolution 2D NMR method for acquiring spectra in inhomogeneous magnetic fields.
- To enable rapid analysis of complex chemical mixtures and biological tissues.
Main Methods:
- Utilizes intermolecular double-quantum coherences.
- Employs spatial encoding of NMR observables.
- Acquires entire 2D spectra in a single scan.
Main Results:
- Successfully recovered chemical shifts, coupling constants, and multiplet patterns despite severe field inhomogeneities.
- Demonstrated on organic compounds and pig bone marrow samples.
- Showed applicability to biological samples with intrinsic magnetic susceptibility variations.
Conclusions:
- The proposed NMR method is fast and effective for studying complex chemical mixtures and biological tissues.
- Potential for real-time in vivo NMR studies.
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