PMID: 7541990Jan 1, 1995Paper

Millimeter microwave effect on ion transport across lipid bilayer membranes

Bioelectromagnetics
S I Alekseev, M C Ziskin

Abstract

The effects of millimeter microwaves in the frequency range of 54-76 GHz on capacitance and conductance of lipid bilayer membranes (BLM) were studied. Some of the membranes were modified by gramicidin A and amphotericin B or by tetraphenylboron anions (TPhB-). The millimeter microwaves were pulse-modulated (PW) at repetition rates ranging from 1 to 100 pps, PW at 1000 pps, or unmodulated continuous waves (CW). The maximum output power at the waveguide outlet was 20 mW. It was found that CW irradiation decreased the unmodified BLM capacitance by 1.2% +/- 0.5%. At the same time, membrane current induced by TPhB- transport increased by 5% +/- 1%. The changes in conductance of ionic channels formed by gramicidin A and amphotericin B were small (0.6% +/- 0.4%). No "resonance-like" effects of mm-wave irradiation on membrane capacitance, ionic channel currents, or TPhB- transport were detected. All changes in membrane capacitance and currents were independent of the modulation employed and were equivalent to heating by approximately 1.1 degrees C.

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Citations

Jan 1, 1997·Bioelectromagnetics·S I AlekseevM A Bolshakov
Jun 30, 2007·Meditsinskaia tekhnika·A I VarakinIu V Serianov
Mar 16, 2005·Bioelectromagnetics·Mohamed H GaberW A Khalil
Jul 11, 2007·Bioelectromagnetics·Alfonsina Ramundo-OrlandoIvan Spassovsky
Sep 6, 2001·IEEE Transactions on Bio-medical Engineering·S I Alekseev, M C Ziskin
Apr 21, 2009·Biochimica Et Biophysica Acta·Alfonsina Ramundo-OrlandoRita Massa
Oct 29, 1997·International Journal of Radiation Biology·M A Rojavin, M C Ziskin
Jan 19, 2010·Nanotechnology·Sujatha RamachandranDaniel W van der Weide
Sep 22, 2019·International Journal of Environmental Research and Public Health·Myrtill Simkó, Mats-Olof Mattsson

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