Paper
13 March 2014 AC field induced cell membrane temperature gradients
Allen L. Garner, Maxim Deminsky, V. Bogdan Neculaes, Boris Potapkin
Author Affiliations +
Abstract
While generally inducing minimal heating in many biomedical applications, electric fields may still induce significant temperature gradients, particularly for pulses of short duration and AC (sinusoidal) fields of high frequency, such as microwaves. This paper extends a recent analysis of temperature gradients across a biological cell and membrane for single pulses [(A. L. Garner, et al., J. Appl. Phys. 113, 214701 (2013).] to multiple pulses or AC fields where the time between the two pulses, or the period for AC signals, is shorter than the thermal diffusion time. We calculate profiles of the induced temperature changes and gradients across a biological cell for AC wave of different frequencies and show that the location of the peak temperature and gradient shifts toward the center of the cell during subsequent half-waves. Higher frequency fields induce higher temperature gradients with the temperature gradient shifts toward the center of the cell for subsequent cycles.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Allen L. Garner, Maxim Deminsky, V. Bogdan Neculaes, and Boris Potapkin "AC field induced cell membrane temperature gradients", Proc. SPIE 8941, Optical Interactions with Tissue and Cells XXV; and Terahertz for Biomedical Applications, 89411Q (13 March 2014); https://doi.org/10.1117/12.2045051
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KEYWORDS
Temperature metrology

Diffusion

Microwave radiation

Solids

Biomedical optics

Biological research

Chemical elements

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