Following the electrokinetic theory of soft particle and the double-layer model of suspended cell unit
the colloid vibration potential(CVP)model of biological cell under the action of ultrasound is investigated
and the mathematical expression and the interaction of the electrokinetic polarization potential of ion and cell are constructed. Based on the electrokinetic model of the cell suspension
an electrokinetic measurement system using the step ultrasonic signal is set up. Via the vibration potential measurement of the solution of NaCl
it shows that the ion vibration potential(IVP)gets direct proportional to the ion concentration. But the IVP wavily drops with the increasing ion concentration once the ion concentration increases to a certain level
or even increases with reversed-phase due
to the action of the electrokinetic polarization of particle of ultrasonic condensation. The vibration potential measurement of the chicken blood cell suspension shows that the total vibration potential(TVI)of the cell suspension decreases with the increasing cell concentration in the cell suspension in low concentration. When the cell concentration gets up to 6×10
5
mL
-1
the TVI begins to increase with the increasing cell concentration
henceforth
the electrokinetic polarization of cell primarily facilitates TVI increase.
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