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Exposure of the biological cells to an external electric fields can cause the change of the transmembrane potential on the cells, leading to a variety of biochemical and biophysical change of the cells which can be evaluated by power dissipation. The second analytical models were derived to calculate the power dissipation within the cell membrane in high concentration suspensions exposed to DC fields...
Since the famous Schwan equation was derived under the condition of ignoring the capacitive properties, the first order-model analytical solution derived by Schwan equation, is no longer suitable for calculating the transmembrane potential on a cell in suspensions exposed to an external field at frequency below 10 KHz. For the reason is that capacitive property of the cytoplasm and the external medium...
The K562 cells at various densities were exposed to the same millimeter waves which frequency was 41.32 GHz at intensity of 2 mW/cm2 , respectively. Then the apoptosis of the cells were detected by flow cytometry. The results show that the apoptosis of K562 cells were different with the change of the cell density. Based on the relation between the apoptosis of the k562 cells and the transmembrane...
During the electroporation, the membrane conductivity increase dramatically. The transmembrane potential (TMP) on the permeabilize cells in suspensions exposed to a DC pulse field, is theoretically a complex problem especially due to the rotation and the mutual interactions among the permeabilize cells. Based on the Maxwell equivalent theory, an analytical solution for the TMP on the permeabilize...
In this paper, a second order analytical model of transmembrane potential (TMP) on the cells in suspensions exposed to microwaves in 100 MHz to 20 GHz frequency range, was derived. During the exposure of a microwave in this range, the conductivity of a cell membrane increase dramatically. So it has to be considered during the derivation of the TMP. The second order analytical model shows that the...
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