Electrical and morphological changes of human erythrocytes under high hydrostatic pressure followed by dielectric spectroscopy.

Asami, K; Yamaguchi, T · Ann Biomed Eng · 1999

basic_science · Level V

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Abstract

The electrical and morphological properties of human erythrocytes under high hydrostatic pressure up to 500 MPa have been studied by dielectric spectroscopy. The pressure-induced changes in the dielectric behavior of erythrocyte suspensions indicate that hydrostatic pressure causes the change in cell shape from discoidal to spherical and hemolysis at 200-300 MPa, the formation of buds and spicular processes followed by vesiculation at 300-400 MPa, and the increase in the membrane capacitance at 400-500 MPa.

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