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Dynamic nuclear polarization - enhanced high resolution solid-state NMR spectroscopy for atomic 3D structure determination of functionalized nanotubes and other nano-sized objects

Final Report Summary - DNP4NANOCARAC (Dynamic nuclear polarization - enhanced high resolution solid-state NMR spectroscopy for atomic 3D structure determination of functionalized nanotubes and other n

The intra-European fellowships (IEF) funding has enabled Dr Gaël De Paëpe to start his research activities at Indian and Northern affairs Canada (INAC) (Centre dEtudes atomiques (CEA) Grenoble).

The two last years has been devoted to the installation of a very novel equipment at INAC: high field dynamic nuclear polarization (DNP) experiments.

The experiment is currently being installed at micro and nanotechnology innovation campus (Minatec) and very encouraging preliminary results have been obtained.

The other aspect of the IEF was to develop a low temperature nuclear magnetic resonance (NMR) probe. We are currently testing magic angle spinning under cryogneic conditions and five patent deposits are currently in progress.

Besides the DNP and instrumentation development, we have also contributed to the development of new methods in solid-state NMR (one publication in journal of chemical physics and one paper pending for submission).

Research activities:

Axis one: DNP experiment setup
- Initiate call for bids for a high field DNP experiment (magnet and gyrotron) - June-September 2010
- Active participation to laboratory setup in Minatec (moving scheduled in June 2011)
- Biradical synthesis for DNP-- (Coll. SCIB)
- Theoretical development for DNP experiments

Axis two: Instrumentation for cryogenic NMR - (Coll. SBT/SCIB)
- Test cryostat assembling for cryogenic NMR - preliminary test April 2011
- Patent deposit for new instrumentation in NMR -- in progress
- Conception and preliminary test of a room temperature NMR probe

Axis three: method development in solid-state NMR
- Extension of the third spin assisted recoupling principles aiming at improving structure determination by solid state NMR.
- Grant of a young researcher price to M. Giffard (PhD in the group) – European magnetic resonance (Euromar) (Florence, July 2010)
- Setting up of a collaboration aiming at studying by nanoparticles be DNP enhanced solid state NMR -- in progress