Abstract
The way in which individual cells may be made to spin by the application of alternating electric fields is examined. The spinning of a given living cell is observed to respond rather sharply and in a resonant manner at several frequencies, hence the term "cellular spin resonance" (CSR). The frequencies of the applied field can be orders of magnitude higher than the actual spin rate. The CSR varies with the conductivity of the medium, with the square of the applied field, with the cell type and with the phase of the yeast cell life cycle. Living cells respond readily and individually are sharply resonant. Dead cells show little such response.
From the behavior of the CRS in sinusoidal AC, as compared to pulsed DC, it appears likely that one cause of CSR, at least that in high frequency electric fields, is the presence of natural rf oscillations arising from the cells, and modulated by their high polarizability.
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Pohl, H.A., Braden, T. Cellular spin resonance of aging yeast and mouse sarcoma cells. J Biol Phys 10, 17–30 (1982). https://doi.org/10.1007/BF01988465
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DOI: https://doi.org/10.1007/BF01988465