Sensitivity enhancement in static solid-state NMR experiments via single- and multiple-quantum dipolar coherences

J Am Chem Soc. 2009 Apr 29;131(16):5754-6. doi: 10.1021/ja900096d.

Abstract

We present a new method for enhancing the sensitivity in static solid-state NMR experiments for a gain in signal-to-noise ratio of up to 40%. This sensitivity enhancement is different from the corresponding solution NMR sensitivity enhancement schemes and is achieved by combining single- and multiple-quantum dipolar coherences. While this new approach is demonstrated for the polarization inversion spin exchange at magic angle (PISEMA) experiment, it can be generalized to the other separated local field experiments for solid-state NMR spectroscopy. This method will have a direct impact on solid-state NMR spectroscopy of liquid crystals as well as of membrane proteins aligned in lipid membranes.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Crystallization
  • Leucine / analogs & derivatives*
  • Leucine / chemistry
  • Nuclear Magnetic Resonance, Biomolecular / methods*
  • Sensitivity and Specificity

Substances

  • Leucine
  • acetylleucine