Influence of Magnetic Fields on Electrochemical Reactions of Redox Cofactor Solutions


Redox cofactors mediate many enzymatic processes and are increasingly employed in biomedical and energy applications. Exploring the influence of external magnetic fields on redox cofactor chemistry can enhance our understanding of magnetic-field-sensitive biological processes and allow the application of magnetic fields to modulate redox reactions involving cofactors. Through a combination of experiments and modeling, we investigate the influence of magnetic fields on electrochemical reactions in redox cofactor solutions. By employing flavin mononucleotide (FMN) cofactor as a model system, we characterize magnetically induced changes in Faradaic currents. We find that radical pair intermediates have negligible influence on current increases in FMN solution upon application of a magnetic field. The dominant mechanism underlying the observed current increases is the magneto-hydrodynamic effect. We extend our analyses to other diffusion-limited electrochemical reactions of redox cofactor solutions and arrive at similar conclusions, highlighting the opportunity to use this framework in redox cofactor chemistry.

Angewandte Chemie
Jimin Park
Postdoc at CalTech (w/ Viviana Gradinaru)
Florian Koehler
Florian Koehler
Graduate Student


Georgios Varnavides
Postdoctoral Fellow, UC Berkeley
Marc-Joseph Antonini
Marc-Joseph Antonini
Postdoctoral Associate

Working towards enhancing human health and capabilities by combining engineering and neurosciences.

Polina Anikeeva
Polina Anikeeva
Professor in Materials Science and Engineering
Professor in Brain and Cognitive Sciences
Associate Director, Research Laboratory of Electronics

My goal is to combine the current knowledge of biology and nanoelectronics to develop materials and devices for minimally invasive treatments for neurological and neuromuscular diseases.