Quantum Biology
Ever wonder if maybe we could control stem cells by making changes at the subatomic level?
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Above: Diagram of the proposed radical pair mechanism by which weak magnetic fields can change electron spin states of radicals.
Ever wonder if maybe we could control stem cells by making changes at the subatomic level? Neither did we...until recently! But the possibilities for the therapeutic use of quantum phenomena are at the forefront of current biological research.
Our Research:
The field of quantum biology centers on interdisciplinary research into the possible quantum underpinnings of biological processes. We are working with engineers, physicists, and (hopefully soon) chemists to determine whether exposure to weak magnetic fields (WMFs) could be used as a therapeutic tool to change the levels of reactive oxygen species (ROS) during tissue growth. Physicists propose a radical pair mechanism by which weak magnetic fields can alter the spin state of electrons in radicals. This would have the consequence of either promoting or inhibiting the recombination of radicals, leading to a change in the amounts of ROS present in the cell. As our data has shown that ROS signaling regulates the proliferation of stem cells, this quantum biology research dovetails nicely with our work on ROS signaling.

Above: The amount of new tissue (blastema) growth during planarian regeneration when exposed to a range of weak magnetic field strengths.
Summary
Radical pair reactions — a quantum mechanical process — may be exploited by biological systems. We investigate whether weak magnetic fields can alter superoxide radical pair recombination rates, modulating ROS levels and stem cell behavior.
Methods
We apply precisely controlled weak magnetic fields (0–600 µT) to regenerating planarians and measure effects on superoxide production, stem cell proliferation, and regeneration outcomes through behavioral assays and quantitative imaging.
Significance
If quantum effects on radical pairs can non-invasively control stem cell activity, this opens an entirely new paradigm for regenerative medicine and cancer therapy — control without chemicals.
Related Publications
Van Huizen, A.V., Morton, J.M.G., Kinsey, L.J., Von Kannon, D.G., Saad, M.A., Bhatt, T.R., Feldman, J.M., Gerecht, J., and Beane, W.S. (2019). Weak magnetic fields alter stem cell–mediated growth. Science Advances 5(1).

