Prof. Song-I Han

19.01.22, 4 pm (EST)

Dynamic Nuclear Polarization to Enhance the Detection of Wet Interfaces and Interaction

Abstract

My group uses advanced magnetic resonance tools and precise manipulation and detection of electron and nuclear spin probes located on biomolecular and materials surfaces to uncover their design rules for molecular recognition, including the surface structuring and dynamics of hydration water. Visualizing molecular interactions and materials interfaces, previously "invisible", fundamentally transform our ability to discover solutions, and almost as importantly, ask new questions. The study of local features at the nanometer and sub-nanometer scale is achieved through the use of strategically placed or intrinsically located electron spin probes and sites, and orders of magnitudes in NMR signal enhancements, achieved through the polarization transfer from the electron spin probes to the surrounding nuclear spins, relying on processes broadly termed dynamic nuclear polarization (DNP). I will present conceptual and hardware tools of DNP-amplified nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR). I will also discuss applications of DNP and other advanced magnetic resonance tools to decipher mechanisms behind spontaneous or seeded molecular assembly.

The talk announcement - PDF

Speaker

Prof. Song-I Han

Department of Chemistry and Biochemistry; Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA, 93106, USA

CV

 

 

letzte Änderung: 21.12.2021