PubMed · 5576467
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A Castellanos. 1971-06-17. Technical problems with pacemakers.. https://doi.org/10.1056/nejm197106172842421
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We have explored the mechanism of coupling of an approximately 50 mT static magnetic field with the alpha helices of poly-L-lysine. Structural changes in poly-L-lysine were determined by Raman spectroscopy. Our testable hypothesis is that static magnetic fields of this magnitude can couple with the alpha-helical segments of the polypeptide, and, as a result, the structure of the polypeptide is significantly altered. Our model further suggests that a static magnetic field can promote protein unfolding and can prevent refolding.
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The pictorial representation of the magnetic screening tensor as ellipsoid (half axes root 1/sigma ii) is inconvenient. Much more obvious is an ovaloid with half axes sigma ii. The shape of this ovaloid is described in the dependence on the diagonal elements sigma 11, sigma 22 and sigma 33 of the principal axes of the screening tensor.