Mon, Feb 19, 2018 — 8:44 pm
Research Collaboration with the Technical University Darmstadt, Germany leads to peer-reviewed publications
Markus Hoffmann, Department of Chemistry and Biochemistry faculty member has recently begun collaborating with the research group of Prof. Gerd Buntkowsky at the Technical University Darmstadt, Germany; which is funded by the Deutsche Forschungsgemeinschaft, the German equivalent of the National Science Foundation. As a “Mercator Fellow” he spent his research stays in their laboratories during a sabbatical in Fall 2015 and subsequent summers 2016 and 2017. The research concerns the use of dynamic nuclear polarization (DNP) enhanced solid state Nuclear Magnetic Resonance (ssNMR) spectroscopy to better understand polyethylene glycol (PEG) and related nonionic surfactants as environmentally benign solvents. DNP is a hyperpolarization method that in favorable cases can lead to about 100-fold sensitivity increase in ssNMR spectroscopy. During their studies they discovered a new effect of DNP, which they describe in a first publication and then subsequently further elucidate in two subsequent articles[2, 3]. All three articles were published in The Journal of Physical Chemistry C. Additional efforts are presently underway to establish a regular exchange of student researchers between Darmstadt and Brockport.
 Hoffmann, M. M., Bothe, S., Gutmann, T., Hartmann, F.-F., Reggelin, M., and Buntkowsky, G.: Directly vs indirectly enhanced 13C in dynamic nuclear polarization magic angle spinning NMR experiments of nonionic surfactant systems, J. Phys. Chem. C, 121, (2017) 2418-2427; DOI:10.1021/acs.jpcc.6b13087.
 Bothe, S., Hoffmann, M. M., Gutmann, T., and Buntkowsky, G.: Comparative study of the magnetic field dependent signal enhancement in solid-state dynamic nuclear polarization experiments, J. Phys. Chem. C, (2017); DOI:10.1021/acs.jpcc.7b07967.
 Hoffmann, M. M., Bothe, S., Gutmann, T., and Buntkowsky, G.: Unusual local molecular motions in the solid state detected by dynamic nuclear polarization enhanced NMR spectroscopy, J. Phys. Chem. C, 121, (2017) 22948-22957; DOI:10.1021/acs.jpcc.7b07965.