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Explore quantum spin dynamics in biological systems through this 53-minute conference talk examining how weak magnetic fields and isotope effects influence biological function despite their interaction energies being below thermal noise limits. Discover the principles of quantum biology and the radical pair mechanism as alternative frameworks for understanding these phenomena. Learn about theoretical proposals and experimental evidence for quantum spin dynamics as regulators of biomolecular processes, with particular focus on microtubules - dynamic cytoskeletal polymers that shape neuronal structure, drive intracellular transport, and contribute to chromatin organization and genome stability. Examine findings consistent with a radical pair mechanism driven by the nuclear spin of ²⁵Mg that establish direct links between quantum spin dynamics and cytoskeletal function. Investigate how spin-sensitive chemistry could extend to other magnesium-dependent processes including DNA replication and repair, epigenetic remodeling, and mitochondrial bioenergetics. Consider potential biophysical strategies for modulating chromatin dynamics and maintaining cellular homeostasis, with applications in precision diagnostics and targeted therapies for neurodegeneration, cancer, and infectious disease. The presentation is delivered by Dr. Travis Craddock, Associate Professor at the University of Waterloo and Tier 1 Canada Research Chair in Quantum Neurobiology, who combines quantum physics, biophysics, and neuroscience to investigate quantum processes in neuronal cytoskeletal proteins.
