A Molecular View of How Free Radicals Increase NMR Sensitivity by Dynamic Nuclear Polarization

by Prof. Michael K Bowman (University of Alabama, USA)

Wednesday 4 Nov 2015, 16:00 → 17:00 Asia/Kolkata

AG - 66 (Lecture Theatre) (TIFR, Colaba, Mumbai)

Abstract: Dynamic nuclear polarization (DNP) can greatly increase the sensitivity and specificity of Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) by hyper polarizing the nuclear spins and increase the population difference in the spectroscopic transitions. DNP involves pumping electron spin transitions in frozen solutions of free radicals. Molecular properties of trityl free radicals used for DNP have a great influence on the electron spin dynamics."